Chemistry

how many ml of 0.100 m nacl would be required to make a 0.0595 m solution of nacl when diluted to 150.0 ml with water?
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9. a 50 ml sample of an aqueous solution contains 1.08 g of human serum albumin, a blood-plasma protein. the solution has an osmotic pressure of 5.85 mmhg at 298 k. what is the molar mass of the albumin?
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which of the following is the most likely range of values for human body density? a. 0.900 - 1.100 g/cc b. 1.09 - 1.105 g/cc c. 0.99 - 1.02 g/cc d. 1.02-1.08 g/cc
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A student is looking at a model of a neutral atom. The model shows that the atom has 19 subatomic particles in the nucleus. Ten of those subatomic particles do not have a charge.Which statement about the model of the atom is true?
2 Answers
last time, you determined two important quantities for [fe(ncs)] 2 2 , what were these two quantities?
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How many moles are there in 6.02 x1023 molecules of oxygen?
2 Answers
you have a stock solution of 0.6 molar sucrose, and want to prepare 3 ml of 0.24 molar sucrose solution. what are the correct amounts of 0.6 m sucrose and water that you will need to use?
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How many moles of MgS are in 1.00g MgS?
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Given the solubility rules from the book, which of the following metal hydroxides should be soluble in water? LiOH CuOH AgOH. Cu(OH)2 TlOH. LiOH.
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what term refers to the ability of open systems to fight off deterioration, sustain themselves and grow? a. requisite variety b. network properties c. negative entropy d. modeling techniques
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This paper looks much
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what are two other things you could do to drive your reaction forward? these must be specific procedural steps you could do in the experimen
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if you start with 0.045 m of i2 at this temperature, how much will remain after 5.12 s assuming that the iodine atoms do not recombine to form i2 ? g
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You have been saving pennies in a jar, and you now have 125 pennies. You want to know the total mass of the pennies before you take them to the bank. If the average penny has a mass of 2.50 g, what is the total mass of the pennies?
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From Portugal to Senegal use the currenct
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is it possible to use the same colored central atom to make a model for all of these molecules? why?
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was the weight of nylon a week later very different from the weight of nylon at the end of the lab period? provide a possible explanation.
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there are three mechanistic steps of an aldol addition reaction: (1) deprotonation, (2) nucleophilic attack, (3) protonation.
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What test in which the glucose molecules attached to hemoglobin a1 is being measured?
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Calculate the mass of Cu(OH)2 produced from 3.5 mol NaOH
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which of following statement does not describe the saturated liquid if heat is added to it? multiple choice question. it's about to condense. it is about to vaporize. it refers to a point on a t-v diagram. it's still considered a liquid. any heat added will cause some of the liquid to vaporize.
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what is the conjugate base of ch3nh3 ? group of answer choices ch3nh2 ch3nh3 ch3nh3- ch3nh2- ch3nh2
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how long will it take the same amount of gaseous xe to effuse from the same container under identical conditions?
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A beryllium (Be) atom contains 4 protons, 5 neutrons, and 4 electrons. What would be formed if one proton were removed from this atom?A. A neutral atom of lithiumB. A lithium ionC. A beryllium ionD. An isotope of beryllium
1 Answer