What is the molarity of a HCl solution, if 28.6 mL of a 0.175 m NaOH solution is needed to neutralize a 25.0 mL sample of the HCl solution

Answers

Answer 1

The molarity of the HCl solution needed to neutralize 28.6 mL of a 0.175 M NaOH solution is 0.2002 M

We'll begin by writing the balanced equation for the reaction. This is given below:

HCl + NaOH —> NaCl + H₂O

From the balanced equation above,

The mole ratio of the acid, HCl (nA) = 1

The mole ratio of the base, NaOH (nB) = 1

From the question given above, the following data were obtained:

Volume of base, NaOH (Vb) = 28.6 mL

Molarity of base, NaOH (Mb) = 0.175 M

Volume of acid, HCl (Va) = 25 mL

Molarity of acid, HCl (Ma) = ?

The molarity of the acid, HCl can be obtained as follow:

MaVa / MbVb = nA / nB

(Ma × 25) / (0.175 × 28.6) = 1

(Ma × 25) / 5.005 = 1

Cross multiply

Ma × 25 = 5.005

Divide both side by 25

Ma = 5.005 / 25

Ma = 0.2002 M

Therefore, the molarity of the acid, HCl needed for the reaction is 0.2002 M

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Related Questions

The minimum collision energy between two molecules in order for them to react is called A activation energy. B dispersal energy C spontaneous energy D transition energy.​

Answers

A: activation energy

hope i helped :D

Consider the following chemical reaction.
3 Zn(C₂H₃O₂)₂(aq) + 2 Na₃PO₄(aq) → 6 NaC₂H₃O₂(aq) + Zn₃(PO₄)₂(s)

A chemist makes a solution of zinc acetate by dissolving 20.5 g Zn(C₂H₃O₂)₂ in 105 mL H₂O. What is the concentration of this zinc acetate solution?

Answers

The concentration of the zinc acetate, Zn(C₂H₃O₂) solution is 1.067 M

We'll begin by calculating the number of mole in 20.5 g of Zn(C₂H₃O₂)₂

Mass of Zn(C₂H₃O₂)₂ = 20.5 g

Molar mass of Zn(C₂H₃O₂)₂ = 65 + 2[(12×2) + (3×1) + (16×2)]

= 65 + 2[59]

= 183 g/mol

Mole of Zn(C₂H₃O₂)₂ =?

Mole = mass / molar mass

Mole of Zn(C₂H₃O₂)₂ = 20.5 / 183

Mole of Zn(C₂H₃O₂)₂ = 0.112 mole

Finally, we shall determine concentration of Zn(C₂H₃O₂). This can be obtained as follow:

Mole of Zn(C₂H₃O₂)₂ = 0.112 mole

Volume = 105 mL = 105 / 1000 = 0.105 L

Concentration of Zn(C₂H₃O₂)₂ =?

Concentration = mole / Volume

Concentration of Zn(C₂H₃O₂)₂ = 0.112 / 0.105

Concentration of Zn(C₂H₃O₂)₂ = 1.067 M

Therefore, the concentration of the zinc acetate, Zn(C₂H₃O₂) solution is 1.067 M

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Which are characteristics of matter? (Select all that apply)

A. Created from mixtures

B. Takes up space

C. Makes up atoms

D. Has mass

Answers

Answer:

B and D.

Explanation:

Matter takes up space and has mass.

Answer:

B and D

Explanation:

It is because matter is anything that has mass (weight) and can occupy space

please help as soon as possible!!!

Answers

Answer:

the kidney control the amount of water, ion, and other substances in the blood by excreting more or less of them in urine, also secretes the hormones that help maintain homeostasis

Part B
Emmerson pours the clear water into the side of the vase with the soil and gravel. The series of animated pictures shows how his model looked over time. What do you observe?

Answers

Answer:

experiment can show the movement of pollutants through the groundwater!

Explanation:

Answer:

I see that the water is starting to get darker and darker which means it is getting dirtier the higher is goes up.  So that means that the soil and gravel will pollute the water with dirt, gravel, etc.

Explanation: Please give brainliest have a good day:)

6. (04.02 MC) Two chemical reactions are shown:

A. Ca(OH)2 → CaO + H2O
B. 4K + O2 → 2K2O

Which statement is true? (4 points)

A) Both are synthesis reactions.
B) Both are decomposition reactions. C) A is a synthesis reaction, and B is a decomposition reaction.
D) A is a decomposition reaction, and B is a synthesis reaction.

Answers

A. Ca(OH)₂ → CaO + H₂O is a decomposition reaction

B. 4K + O₂ → 2K₂O is a synthesis reaction.

The correct answer to the question is Option (D) A is a decomposition reaction, and B is a synthesis reaction.

A decomposition reaction is a reaction in which a large compound is broken into two or more products for example:

XY —> X + Y

A synthesis reaction is a reaction in which two or more substances combine to produce a single product. For example

C + D —> CD

With the above information in mind, we conclude that:

A. Ca(OH)₂ → CaO + H₂O is a decomposition reaction

B. 4K + O₂ → 2K₂O is a synthesis reaction.

The correct answer to the question is Option (D) A is a decomposition reaction, and B is a synthesis reaction.

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Answer:

d

Explanation:

pls help asap....................

Answers

Hope this helps!!!!:)

Some single-celled organisms make copies of themselves through mitosis. Which describes the function of the cell cycle in such single-celled organisms?

Answers

Answer:

mitosis?

Explanation:

Some single celled organisms make copies of themselves through mitosis

In unicellular organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell. In multicellular organisms, mitosis produces more cells for growth and repair.

..........................................................

Answers

Explanation:

...........................................................

Answer:

??????????????

Explanation:

where is your question?

Imagine yourself making a nice cup of tea on a cold winter day. You begin by boiling some water in a kettle. Next, you add the steaming liquid to your cup. Then, you open a tea bag and repeatedly dunk it into the water. You pour a dash of milk and drop a few sugar cubes into the cup, stirring the solution with a spoon. Finally, you squeeze a bit of lemon into your tea mixture. However, before you have time to stir the lemon juice into your tea, the liquid forms clumps. In other words, your tea has curdled!
Based on the scenario, answer the questions below.

Which of the four indicators of a chemical change is described in the paragraph above?
What makes the tea with milk and lemon curdle?
Name some of the chemical substances in the tea mixture. (You will need to conduct some research on your own to do this.)
Which chemicals could have reacted to cause the curdling?

Answers

change of state (boiling)increase in aciditymethamphetamine (caffeine) theobromine and theophylline lemon juice

Did school teach you a lot?


Did school make your life better??


Did school make you happy?




I just wanted a other opinion


Answers

Answer: it definitely did help me a lot but sometimes it doesn’t make me happy like i will get stressed but it passes.

Explanation:

It definitely taught me a lot but didn’t make my life better or happy. But being with my friends were only time that I liked about school lol

I am an alkali metal located in the third period of the periodic table. Who am I?

Answers

Answer:

Magnesium

Explanation:

It's an alkali metal and is in the third period on the period table. I'm sure

The alkaline earth metal found in period 3 of the periodic table is magnesium.The lightest structural metal is magnesium (Mg), an alkaline-earth metal from Group 2 (IIa) of the periodic table.

I am an alkali metal located in the third period of the periodic table. Who am I?

Six chemical elements in Group 1, the periodic table's leftmost column, make up the alkali metals.They are francium (F), cesium (Cs), rubidium (Rb), potassium (K), sodium (Na), and lithium (Li) (Fr). One of the chemical elements in the third row of the periodic table of the chemical elements is referred to as a period 3 element. Magnesium is regarded as a metal because it is a member of group2.Acid and metals react to produce salt and hydrogen gas.As a result, magnesium interacts with diluted hydrochloric acid to produce magnesium chloride (salt) and hydrogen gas. Magnesium is a silvery, light metal that makes up 2% of the Earth's crust but is not present in nature.Only in combination with other elements like carbon, calcium, and oxygen, as in the common mineral dolomite, could this versatile element naturally arise. Magnesium is a cofactor in more than 300 enzyme systems that affect a variety of biochemical processes in the body, including as protein synthesis, blood glucose control, blood pressure regulation, and muscle and nerve function [1-3].Magnesium is necessary for the oxidative phosphorylation, glycolysis, and generation of energy. Magnesium supports muscle and neuron function as well as energy synthesis in the body, among many other vital functions.Typically, low magnesium levels don't result in any symptoms.On the other hand, persistently low levels can raise your risk of osteoporosis, type 2 diabetes, high blood pressure, and heart disease. For the majority of individuals, daily doses under 350 mg are safe.The adverse effects of magnesium can include nausea, vomiting, diarrhea, and upset stomach in some people.Magnesium is POSSIBLY SAFE UNTIL TAKEN IN VERY HIGH AMOUNTS (more than 350 mg daily).

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2. The mass number tells the total number of
nucleus of an atom. These particles collectively are called
both are located in the nucleus.

Answers

Answer: The mass number tells the number of protons.

Explanation:

How could you break down the compound calcium carbonate into the elements that make it up ?
A. by melting
B. by crushing
C. with filter
D. with chemical changes

Answers

Answer:

A. By melting

Explanation:

You can break it down by thermal decomposition which is basically melting it and thats because many metal carbonates can take part in thermal decomposition reactions.

NO ONE IS ANSWERING PLS HELP!

Which product in the reaction forms a precipitate?
AgCl
AgK
No precipitate formed

Answers

Answer:

AgCl

Explanation:

Got correct on E2020

Answer:

B: AgCl

Source: trust me bro

You want to build a deck off your kitchen and you estimate that you will need 3000 #8 nails all together. Rather than pay extra for them to be put in little boxes, you go to a hardware store where they sell nails in bulk. How does the sales clerk count out 3000 #8 nails for you?

Answers

Answer:

The sales clerk can count your nails in 6 groups of 500 nails, or 30 groups of 100 nails to ease the counting process and garauntee a more accurate result.

Explanation:

Why does in the golf stream warm and provide it’s Rhode Island or Bangor Maine

Answers

An ice cube in a pint glass demonstrates how the shrinking polar ice cap gives more flow to a stronger Gulf Stream, while an ice cube in the adjacent pint glass demonstrates why Gulf of Maine seawater is not warming faster than any other water body.

82. How many moles of calcium are in 3.82g of calcium?

Answers

Moles= mass/Mr
Moles= 3.82/40
Moles= 0.0955 mol

Which procedure would produce the best data for comparing the electrostatic forces between the molecules of different substances?
Heat each substance in liquid form for the same amount of time. Measure the temperature of each substance.
Heat each substance in liquid form to its boiling point. Measure the temperature of each substance.
Heat each substance in solid form to its melting point. Measure the quantity of each substance that has melted.
Heat each substance in solid form for the same amount of time. Measure the temperature of each substance.

Answers

The best data for comparing the electrostatic forces between the molecules of different substances can be obtained through this procedure: B. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance.

An electrostatic force can be defined as a force of attraction or repulsion between two (2) stationary and electrically charged particles of a substance.

Basically, the force between two (2) charges is inversely proportional to the square of the distance between them and directly proportional to the magnitude of their charges.

In the molecule of a substance, an electrostatic force is mainly responsible for holding its atoms together while giving the molecule both structure and strength.

During an experiment that is aimed at obtaining the best data to compare the electrostatic forces between the molecules of different substances, the procedure that should be adopted include:

Each of the substance should be heated in liquid form to its boiling point.The boiling temperature of each substance should be measured and recorded.From the data, a comparison should be done to know which molecule contain atoms that are tightly held together.

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Answer:

B. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance.

Explanation:

Just in case you couldn't find the answer. <3

A student wants to conduct an investigation on vapor pressure Which statement describes how vapor pressure is related to an observable phase change?

A liquid boils when the vapor pressure equals the boiling point.
A liquid freezes when the vapor pressure equals the melting point.
A liquid freezes when the vapor pressure equals the atmospheric pressure.
A liquid boils when the vapor pressure equals the atmospheric pressure.

Answers

The Whole Electrical Bonding Investigation Plan Quick check

1) B. boiling point, surface tension, vapor pressure

2) A. glycerin

3) C. the temperature at which additional heat energy causes the substance to change from a liquid to a gas

4) D. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance

5) A. A liquid boils when the vapor pressure equals the atmospheric pressure.

a) Identify which one of the particles is
I) an anion.

2) a cation ​

Answers

Answer: Particle F is an anion, and particle E is a cation

Explanation:

A particle is a cation if it has more protons  than  electrons.

A particle is an anion if it has more electrons than protons.

Hope it helps :) and let me know if you want me to elaborate.

why do we adjust coefficients when balancing chemical equations and not subscripts?

Answers

Answer:

By changing the coefficients you change the amount you have of certain compounds in the equation, whereas changing the subscript would change what compounds are actually in the equation because it would change the ratio of how many atoms of each element are in a compound.

For Example:

Outside of Balancing Equations, [tex]NO_{2}[/tex] (Nitrite) and [tex]NO_{3}[/tex] (Nitrate) are different because one forms a strong acid while the other forms a weak acid based on how many oxygen atoms are added to the compound. So in a chemical equation, if you change the subscripts, you change the entire compound so your reaction may be with a weak acid instead of a strong acid and give you a different product. Meanwhile, changing the coefficient changes the amount of the compound you have for the reaction in order to maintain the Conservation of Mass Law.

Q: Arrange the element according to the increase radius or size
1. Na, K, Cs Fr, Rb
2.  Ca, Sr, Ba, Ra, Mg

Answers

Answer:

Refer to the periodic table to do this.

Explanation:

1. Na, K, Cs Fr, Rb

  Sodium, Potassium, Cesium, Francium, Rubidium

  3, 4, 6, 7, 5

Ascending order: Na, K, Rb, Cs, Fr

2. Ca, Sr, Ba, Ra, Mg

   Calcium, Strontium, Barium, Radium, Magnesium

   4, 5, 6, 7, 3

Ascending Order: Mg, Ca, Sr, Ba, Ra

When doing the electronic configuration of the elements, count how many number of divides it has. For example, Na(Sodium) has 11 electrons and it is divided like this: 2,8,1. So it divides into 3 parts so there will 3 shells for sodium.

Hopefully this helps!!

discussing the importance of the intelligence cycle in order to come up with intelligence

Answers

Answer:

Intelligence Analysis in a Cycle. Analysis resides within the larger intelligence cycle. The intelligence cycle determines the daily activities of the Intelligence Community. It starts with the needs of the intelligence "consumers' such as policymakers, military officials, and other decision makers who need intelligence for their activities.

Explanation:

can i get brainlist

Answer:

The Intelligence Community's daily activities are determined by the intelligence cycle. It begins with the requirements of intelligence "consumers," such as policymakers, military officials, and other decision-makers who require intelligence to carry out their tasks.

Explanation:

Hope it helps

For a reversible system, the entropy change of the system is equal to entropy transferred with _____.

Answers

Answer:

Heat

Explanation:

Something that potatoes and bacteria have in common is that they both reproduce(1 point)


via vegetative reproduction.

using tubers.

via binary fission.

asexually.

Answers

Asexually

Potatoes reproduce asexually through the vegetive propagation mechanism. They have microscopic eyeballs which produce scaly leaves, and new potato plants emerge from these leaves. Only a single individual is responsible for the development of a new species.

Bacteria(Prokaryotes) reproduce asexually through binary fission, where the parent organism divides itself into two, producing genetically identical clones of itself.

The things that potatoes and bacteria have in common is that they both reproduce asexually. Thus option 4 is correct.

What is reproduction?

Reproduction is defined as the biological process that creates new individual organisms from existing ones, also referred to as "offspring"

It can also be defined as the process by which identically minded organisms make new organisms.

There are two types of reproduction.

Sexual reproduction - It is defined as a method of reproduction whereby male and female gametes combine to create an offspring.Asexual reproduction - It is defined as a method of reproduction that doesn't modify the number of chromosomes or involve the fusing of gametes.

Thus. the things that potatoes and bacteria have in common is that they both reproduce asexually. Thus option 4 is correct.

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How many moles are present in 5.67x10^25 atoms of Carbon (C)?

Answers

Answer:

94.155 Moles

Explanation:

Since you are given atoms, to get to moles you need to use the formula I used below. Pretty simple, just plug and chug. Work can be found below.

Hope this helps! :^)

94. 125 moles are present in 5.67x10^25 atoms of Carbon (C).

What is mole?

The mole is a unit of measurement that is comparable to well-known units like pair, dozen, bulk, etc. It offers a precise count of atoms or molecules in a large sample of materials.

The amount of substance that has the same number of discrete entities (atoms, molecules, ions, etc.) as the number of atoms in a sample of pure 12C weighing exactly 12 g is known as a mole.

The word "mole" has a "big mass" or "bulk" sense in Latin, which is congruent with its use as the name for this unit. The mole establishes a connection between bulk mass, which is a simple macroscopic attribute to measure, and the number of atoms, molecules, and other fundamental units, which is a crucial fundamental property.

Therefore, 94. 125 moles are present in 5.67x10^25 atoms of Carbon

(C).

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NaC2H3O2 HOH --> HC2H3O2 NaOH Since the two products are a weak acid and a strong base, we expect this mixture to be basic. When NaF reacts with water in the same manner, the products would be NaOH and _______.

Answers

The products of the reaction would be NaOH and HF

From the question,

We are to determine the products of the reaction between NaF and water in the same manner as the given reaction.

To determine the other product, we will write the equation for the reaction

The equation for the reaction is

NaF + H₂O → NaOH + HF

Hence, the products of the reaction would be NaOH and HF.

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"Which type of reaction is used to measure immune complex formation almost immediately after reagent has been added by the amount of light scattered at a particular angle"

Answers

Answer:

nephelometry

Explanation:

Please mark as brainliest if this helped you

According to the following map, what is a type of mineral found in Mexico?

a | Bauxite

b | Copper

c | Gold

d | Zinc​

Answers

Answer:

B) copper

Explanation:

According to the map, iron, silver, and copper are found in Mexico. That makes B) copper your answer, as it is the only one that shows up for both the answer choices as well as the map.

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Mary wants to buy one large pizza, one medium pizza, and three drinks. The drinks cost $p$ dollars each, the medium pizza costs two times as much as one drink, and the large pizza costs three times as much as one drink. If Mary started with $30$ dollars, how much money would she have left after making all of her purchases? Give your answer as an expression of $p theory definition for biology please and thankyou! If I wanted to change all instances of the word "red" to "blue" in a document, what features would I need to use?Find and SelectFind and ReplaceSpellcheck and Grammar ReplaceTrack Changes What is the quotient of 4/5 divided by 1/3?: write the following numbers as the product of a natural number with a power of 10a) 2450b) 35000c)4000400d) 10101010 Answers ???????????!! While women are getting more and better jobs and their wages are rising more quickly than mens wages are, U.S. Census statistics show that women are earning ________ of what men earn for the same positions (U.S. Census Bureau 2010). the range of beats per minute you should aim for during exercise is: Start with x and cube it Evaluate the expression for a = -13. Although we consume different foods, the parts are eventually used in cellular respiration. Does it matter if they originate from crickets or cows or candy bars? Billy Bob just bought a new car his car costs $75,000. how much money will he pay in taxes for the car if the sales tax is 6%? Will chemotherapy work for all cancers? A rectangular briefcase is 16 1/2 inches wide, 12 3/4 inches tall, and 5 inches deep. What is the volume of the briefcase? please help i will mark as brainlyst Which of the following details best supports the main idea of section 3 (paragraphs 4-6) of "What Would Peter Do?"1."...he had been running away from his truck not towards it!"2."You can only imagine what I felt like!"3."So what can we learn from this adventure?"4."He sat for thirty minutes drinking periodically from his water bottle. Thirty minutes later his head had cleared and he began to reconstruct what had happened." 25 April2015 is viewed as the deadlist day in the history of Mount Everest. 3. What is 5% of 120?A. 5B. 6C. 10D. 12 is 3/4 greater than 1? i need help please (X-3)(X-1)Expand and simplify Which expression is equivalent to 1/2b -15