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331 mg of an unknown acid was titrated with 0.110 M sodium hydroxide. The equivalence point is at 25.00 mL. What is the molar mass of the unknown acid?
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Consider the following reaction. A (g) + B (g) → C (g) + D (g) *In one experiment the concentration of A (g) was monitored in the presence of a large excess of B (g) ( [B] o = 0.750 M ) . Time (s) [A] (mol/L) 0.00 6.00 ...
Assume that you dissolve 10.2 g of a mixture of NaOH and Ba(OH)2 in 227.0 mL of water and titrate with 1.47M hydrochloric acid. The titration is complete when 107.8 mL of the acid has been added. What is the mass (in gra ...
A chemistry lab experiment requires 67.4 grams of silvernitrate. How many grams of a 15.5% by mass solution of silvernitrate should be used?
When the concentration of A in areaction was changed from 1.20 M to 0.600M, the half -lifeincreased from 3-00min to 6.0 min at 250C. Calculate theorder of reaction and the rate constant.
What is the molarity of a solution made by dissolving 20.0 g of CrCl2 in 0.150 L of solution?
You react 100.0 ml of a 1.01 M HBr(aq) solution with 99.1 mlof a 1.05 M KOH(aq) solution. The density of each solution is 1.04g/ml. The heat capacity of the calorimeter is 7.0 J/C. You observea ΔT of 6.3 C. Assume a 4.18 ...
Name five types of radiation. Describe, in table form, their mass number, charge, and identity.
Match the reaction provided on the left with the correct reaction classification/type on the right [NOTE the reaction equations are not balanced] . Reaction classification/types can be used more than once or not at al ...
For the molecule allene, H2 C = C = CH2, give the hybridization of each carbon atom. Will the hydrogen atoms be in the same plane or perpendicular planes?
Suppose a tank is filled with A2(g) so that initial pressure is 0.8688 atm at temperature of 298K. Some of the A2(g) dissociates and when the system reaches equlibrium the total pressure in the tank is 1.275 atm. Calcula ...
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