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A 10.0 mL sample of a 5% solution of a certain substance has a temperature of 30 oC, a mass of 10.2 g and a density of 1.02 g/cm3. What will the % concentration, temperature, mass and density of 20.0 mL of this solution be?
Does beta-D-fructose in its cyclic form have the same number of chiral carbons as beta-D-glucose?
What is the molarity of a calcium hydroxide solution if a 25.0 mL sample is exaclty neutralized by 42.5 mL of 0.0750 M nitric acid?
Standard Electrode Potential (E), a) Write the equation for the cell reaction and indicate cathode and anode half-cells for the electrochemical cell formed from Mg/Mg2+ half-cell and In/In3+ half-cell.
calculate the pH of a buffer solution made by adding 10.0g of anhydrous sodium acetate (NaC2H3O2) to 100 ml of 0.100M acetic acid. sume there is no change in volume on adding the salt to the acid.
The half-life for the second order reaction of a substance A is 55 seconds when [A]o is 0.84 M. What time is needed for the concentration to decrease to 1/4 of the original value.
A gas expands and does P-V work on the surroundings equal to 281 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?
Calculate the equilibrium constant for the reaction of acetic acid and diethylamine. The pKa of protonated diethylamine is 10.94. What are the major forms present in a dilute soultion
what mass of stomach acid will neturalise an antacid tablet containing 0.1g of magnesium hydrogen carbonate
What volume of hydrogen gas is produced when 1.40 mol of carbon monoxide reacts completely according to the reaction at 0oC and 1 atm?
What is the PH after .15 mol of NaOH is added to .050 mol of propanic acid and ,080 M of sodium propanoate with a ka of 1.3x10^.5
What is the theoretical concentration of the 2,6-dichloroindophenol solution? What is the theoretical volume of 2,6-dichloroindophenol needed to neutralize 10mL of the vitamin C standard solution?
If the titrant has a molarity of 0.2750 M and there are 5.00 mL of analyte present, what is the molarity of the analyte
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