Chemistry

calculate the volume in ml of a 6 m solution of hcl stock solution required to make 250 ml of 50 mm hcl?
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a desulfurization reaction involves the conversion of a thioacetal to an alkane by treating the thioacetal with raney nickel. during the reaction, the sulfur atoms of the thioacetal are replaced by hydrogen atoms. desulfurization reactions are a type of:
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in the cold pack process, 27 kj are absorbed from the environment per mole of ammonium nitrate consumed. if 25.0 g of ammonium nitrate are consumed, what is the total heat absorbed?
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sea water contains 1.94% chlorine (by mass). how many grams of chlorine are in there in 400 ml of seawater if the density of seawater is 1.025 g/cm3.
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match the following terms with the correct definitions. - homogeneous equilibrium - heterogeneous equilibrium - le chatelier's principle - complex ion a. a metal ion bonded to lewis acids. b. an equilibrium involving a catalyst in the same phase as the other species. c. an equilibrium involving a catalyst in a different phase as the other species. d. if a chemical reaction is subjected to a change in conditions that displaces it from equilibrium, then the reaction adjusts toward a new equilibrium state. the reaction proceeds in the direction that-at least partially-offsets the change in conditions. e. an equilibrium involving reactants and products in the same phase. f. a metal ion bonded to lewis bases. g. if a chemical reaction is subjected to a change in conditions that displaces it from equilibrium, the the reaction adjusts towards a new equilibrium state. the reaction proceeds in the direction that-at least partially-increases the change in conditions. h. none of these
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which of the following combinations of materials would result in a buffer solution? *100. ml of 1.0 m hcl 50.0 ml of 1.0 nacl *100. ml of 1.0 m hno2 100. ml of 2.0 m nano2 *100. ml of 1.0 m ch3nh2 100. ml of 0.50 m ch3nh3 *100. ml of 1.0 m hf 50.0 ml of 1.0 m hclo
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Question: Why Are The Properties Of Diamond And Graphite Different, Even Though They Are Both Composed Of Pure Carbon? Select The Two Answers That Explain This Difference. Group Of Answer Choices The Atoms In Diamond And Graphite Have Different Hybridizations. The Bonding In Diamond Can Be Modeled With Valence Bond Theory Whereas The Bonding In Graphite Can Only BeWhy are the properties of diamond and graphite different, even though they are both composed of pure carbon? Select the two answers that explain this difference.Group of answer choicesThe atoms in diamond and graphite have different hybridizations.The bonding in diamond can be modeled with Valence Bond Theory whereas the bonding in graphite can only be modeled with Molecular Orbital Theory.The bonding in diamond and graphite are different.The atoms in diamond and graphite are different isotopes of carbon.
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What aldehyde is needed to prepare the carboxylic acid by an oxidation reaction?
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If I have 4 moles of a gas pressure of 5.6 atm and a volume of 12 liters what is the temperature
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what is the name of the material that resists oxidation at elevated temperatures so air can be used as a plasma gas?
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A balloon held at 273 K has an initial volume of 2.0 L at 1.0 atm of pressure. If the pressure is increased to 3.5 atm, what is the new volume of the balloon?
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What is the Percentage of Fluorine as F- in a HF (pKa= 3.33 ) solution at pH= 2.33?
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What is the percent of H inCa(2H302)2?(Ca = 40.08 g/mol, C = 12.01 g/mol,H= 1.01 g/mol, O = 16.00 g/mol)
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calculate the most probable speed, average speed, and rms speed for oxygen (o2) molecules at room temperature
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if a solution is created by adding water to 2.3 x 10^-4 moles of naoh and 4.5 x 10^-6 moles of hbr until 1l, what is the ph of this solution
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results.4. Analyze your experiment and your data about saturation.
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what mass of na2cro4 is required to precipitate all of the silver ions from 72.3 ml of a 0.134 m solution of agno3?
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If I have 28.2 moles of gas at a temperature of 61.8C, and a volume of 79.2 liters, what is the pressure of the gas in kpa?
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Create a Chemical Reaction Poster that will summarize key concepts about chemical reaction. In your poster, includeDefinition of chemical reaction and balanced equationSteps in balancing chemical equation and an exampleTypes of chemical reaction and an example for eachPicture/images related to chemical reactionOther related informationRubric:Content 25 pointsOrganization . 25 pointsNeatness/Creativity... 15 pointsplease help so it can bring my grade upthank you soo muchproject*
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a gas is initalaly 800 ml and 115 c. what is the new temperature if the gas volume shrinks to 400 ml
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what volume (in ml) of a 0.50 m solution of h2so4 is required to completely neutralize 3.0 grams of naoh?
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what is sucrose particle type
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Use the given standard enthalpies of formation to determine the heat of reaction of the following reaction:Note Heat of formation of elements is 0.AH NH (1) = +50.6 kJ/moleAH, H0 (1) = -285.9 kJ/moleAH CO (g) = -393.5 kJ/moleC3H6O (1) = -249.5 kJ/moleCS (g) = +177.4 kJ/moleAH SO (g) = -296.8 kJ/moleAH C6H12 (1) = -156.4 kJ/moleAHAH1. NH4(1) + O(g) N(g) + 2 HO(1)
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you are studying a small stream and find that its ph is 4.5. what does this tell you about the stream, and what might be the cause?
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