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chemistry
february 2020
04

Chemistry Questions and Answers February 04, 2020

Expert-verified solutions to help you succeed

You have at your disposal an ample quantity of a solution of 0.100 M HCI and 400 mL of a solution of 0.0800 M NaCN. How much of the HCl solution should be added to the NaCN solutio n to produce a buffer of pH 9.60?

A sample of 2.00 mol argon is confined at low pressure in a volume at a temperature of 50C. Describe quantitatively the effects of each of the following changes on the pressure, the average energy per atom in the gas, the rootmean - square speed, the rate of collisions with a given area of wall, the frequency of Ar-Ar collisions, and the mean free

A sealed vessel contains a mixture of 956 g of trichloromethane CHCl 3 also called chloroform and 230g of ethanol CH 3 CH 2 OH. At 30-degree Celcius assume that their vapor pressures are 36.0 kpa and 13.0 kpa respectively. Find the composition of the vapor above the solution in terms of mole fractions at 30-degree Celcius.

An aqueous potassium iodate (KIO3) solution is made by dissolving 553 grams of KIO3 in sufficient water so that the final volume of the solution is 2.10 L. 1.) Calculate the molarity of the KIO3 solution. 2.) Calculate the molarity of the two solutions. a) 0.650 mol of NaOH in 1.45 L of solution. b) 10.9 g of NaCl in 699 mL of solution. 3.) If

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