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A sample of 40.0 ml of .1 M acetic acid is titrated with .150 M NaOH Ka = 1.8 x 10^-5 What volume of NaOH is used in the titration in order tor reach the equivalence point? What is molar concentration of acetate ion at equivalence point? What is pH of solution at equivalence point?
Suppose you have a sample which should melt at 100-101 degree C. You place 0.015 grams in a capillary tube in an oil bath at 101 degree C. If the heat of fussion for the sample is 50 cal/gram
What's the mass of sodium oxide produced if 1.5 g of sodium reacts with excess gaseous oxygen. Write the balanced equation.
Energy in the amount of 421 J is added to a 69g sample of water at a temperature of 23.0 C. What will be the final temperature of the water?
What mass of hydrogen can be produced from 2.90 g of aluminum and 14.0 g of HCl in the above unbalanced reaction?
Calculate the molarity of a solution of glycerol made by dissolving 46.000 mL glycerol at 15 ^circ {rm C} in enough water to make 400.00 mL of solution.
The product of this reaction, ozone, is a pollutant in the lower atmosphere. Ozone is an eye and lung irritant and also accelerates the weathering of rubber products. Write Lewis structures for each of the reactants and products in the preceding r..
A mixture of 2.0 mol of CO(g) and 2.0 mol of H2O(g) was allowed to come to equilibrium in a 10.0L flask at a high temperature. If Kc-4.0, what is the molar concentration of H2(g) in the equilibrium mixture
How much heat is required to warm 1.50 L of water from 30.0 C to 100.0 C? (Assume a density of 1.0g/mL for the water.)
Write the chemical equation(s), including state symbols, for what happens when the following ionic compounds are placed in water. Are these substances reacting with water when they are added to water
at t0 butadiene was introduced into an empty vessel at 326 degree celsius and the gas phase dimerization reaction was
Based on the data/information given in items #1 to #4, explain/justify all results derived from the data/results in each experiment. For each peptide you are required to give the sequence of the smaller peptides T1,T2,CT1, and CT2, before you dete..
Calculate the [HNO3] in each aqueous solution at 25C and classify each solution as acidic or basic
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