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If you reacted 10 moles of isopentyl alcohol with an excess of acetic acid, how many gras of isopentyl acetate( MW =130.2 g/mol) would you hav if the yield was 75%?
List the different strengthening mechanisms and identify the ones that would not apply to pure elemental materials
Water is added to 25.0 mL of a 0.776 M KNO3 solution until the volume of the solution is exactly 500 mL. What is the concentration of the final solution.
Calculate the final volume of a 0.500 L gas container that increased in temperature from twenty six degree Celsius to sixty degree celsius while the pressure increased from 760 torr to 1170 torr?
A gaseous mixture of O2 and Kr has a density of 1.180 g/L at 355 torr and 300. K. What is the mole percent O2 in the mixture?
30.0 mL of 0.150 M CH3CO2H are titrated with 0.150 M NaOH. What is the pH of the solution after 15.0 mL of NaOH has been added. The Ka for acetic acid is 1.80 x 10-5
What is the value of the equilibrium constant for the neutralization of acetic acid with sodium hydroxide? The Ka for acetic acid is 1.8 ? 10-5 and the neutralization reaction of interest is CH3CO2H(aq) + NaOH(aq) -> H2O(l) + NaCH3CO2(aq).
if .350g sample of cinnabar is heated the org decomposes completly to leave .302 of pure mercury metal.what is the empirical formula of cinnabar?
If the specific heat of the ball bearing is .474 J/g times degress C, calculate the final temperature of the water. Assume the calorimeter to have neglible heat capacity.
Describe the three types of models (layer sequence drawings, computer graphics, balls and sticks) used for visualizing the three dimensional structure of unit cells
Concentration of H 2 is observed 2.15 moles/L When the reaction N 2 (g) + 3 H 2 (g) ?? 2 NH 3 (g) comes to equilibrium. Determine the numerical value of the Kc equilibrium constant?
A volume of 70.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 18.2 mL of 1.50 M H2SO4 was needed? The equation is 2KOH+H2SO4K-->2SO4+2H2O
dissolved in 100.0 mL water and titrated with 0.500 M NaOH; it takes 45.1 mL to reach the equivalence point. What is the molecular mass (g/mol) of pyruvic acid?
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