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A) Explain how do you make 200mL of a 0.1 M solution of a substance that has a molecular weight of 121.1 g/mol?
B) If you take 10mL of the solution you made in A add 90 mL of water, mix and then take 5mL of the mixture and bring it to 25 mL, Explain what will be the concentration of the final solution in molars, millimolars and micromolars?
How many grams of CaH2 (Molar Mass = 42.1 g/mol)are needed to generate 16.0 L of H2 gas if the pressure of H2 is 729 torr at 21.0°C?
volumetric flask and diluted with deionized (DI) water in order to prepare a calibration standard solution with a concentration of 2.50 x 10-5 M ferroin.
First of the reactant is 2-methyl-2-butanol and the products are 2-methyl-1-butene and 2-methyl-2-butene. I started out with exactly 1.2g 2-methyl-2-butanol and my final product was 0.09 g.
Determine the pH of the solution containing 8*10^(-3) M each of HF and NaF. Assume that NaF dissociates completely. Acid Dissociation constant for HF is Ka=6.3*10^(-4).
When maleic acid is heated to about 100C it forms maleic anhydride, however fumaric acid requires a much higher temperature (250-300C) before it dehydrates
What is the pH for a buffer solution containing 0.49 molar acetic acid and 0.02 molar potassium acetate
The decomposition XY is second order in XY and has a rate of 7.02 E-3 M-1. s-1 at a certain temperature. A. What is the half-life for this reaction at an initial concentration of 0.100M
A 140.0-\,mL solution contains 2.00g of sodium benzoate and 2.53g of benzoic acid. Calculate the \rm pH of the solution.
What is the molarity (M) of a solution that contains 2.08 grams of NaOH (MM = 40.00 g/mol) in 79.65 mL of solution.
reacting ammonia with carbon dioxide. the by product is water. 637.2g of ammonia are reacted with 787.3g of carbon dioxide. which of the two reactant is a limiting reactant?
Provide the name(s) for the tertiary alcohols with the chemical formula C6H14O that have a 4-carbon chain. There are three alcohols that should be named for this.
Consider the following initial rate data (at 295 K) for the decomposition of a substrate (substrate 1) which decomposes to product 1 and product 2
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