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Calculate the amount of solution (g or mL) that contains each of the following amounts of solute. Express your answer to 3 significant figures and include the appropriate units.
A: 6.00g of NaCl from a 3.1%(m/m) NaCl solution
B: 7.0g of NaOH from a 45%(m/m) NaOH solution.
C: 12.6mL of ethanol from a 7.0%(v/v) ethanol solution.
solid carbon dioxide sublimes at a rate of 0.726 g/minute. How many gaseous carbon dioxide molecules are present after 5.00 minutes
calculate the pH change that takes place when a 100mL of (a) 0.0500M NaOH and (b) 0.0500M HCl is added to 400mL of a buffer solution prepared by mixing 0.200M NH3
A solution is prepared by dissolving 270 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
What is the difference between a constitutional isomer and a geometric isomer.
Diethyl amine density (1.0475 g/mL) Diethyl amine MW 73 Diethyl ether density (0.714 g/mL) Hint: Consider at which temperature the reaction is run. Which of the boiling points and melting points might come into play?
A solvent for an industrial process requires the use of phenol or benzene. Both are about the same in effectiveness for the process, and of course, gloves will be used when handling either solvent
A canister is filled with 380g of ice and 100. g of liquid water, both at 0 C. The canister is placed in an oven until all the H2O has boiled off and the canister is empty. How much energy in calories was absorbed?
Draw the product that is formed when (3R, 6R)-6-chloro-2,3-dimethyloctane reacts with sodium iodide in acetone
If 100. mL of 1.60 M Na2SO4 is added to 200. mL of 2.40 M NaCl, what is the concentration of Na+ ions in the final solution? Assume that the volumes are additive.
How many moles of potassium carbonate will be produced if 400.0 g of potassium hydrogen carbonate are heated?
Calculate K for the reaction between one mole of dinitrogen oxide gas and oxygen gas to give dinitrogen tetroxide gas
A 1.996 gram sample of unknown monoprotic acid is dissolved in some water. This acid solution is then titrated to the end point with 27.38 mL of a solution of 0.4165 M KOH.
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