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chemistry
january 2020
24

Chemistry Questions and Answers January 24, 2020

Expert-verified solutions to help you succeed

A 0.100 M solution of a weak monoprotic acid HX is 3.5% ionized. What is the pH of a 0.500 M solution of HX? show work.

A gas occupies a volume of 256 mL at a pressure of 250 torrs at 32 degrees C. Calculate the pressure(in atmospheres) if the volume is reduced to 156mL and the temp is increased to 62 degrees C.

A student estimated the volume of liquid in a beaker as 200 mL. When she poured the liquid into a graduated cylinder, she measured the volume as 216 mL. What is the percent error of the estimated volume from the beaker, taking the measurement in the graduated cylinder as the accepted value?

In this lab you will need to prepare solutions using dilutions. Starting with the stock 0.300 M NaOH solution, how would you prepare a 0.100 M NaOH solution (using 0.300 M NaCl as the diluent)? To prepare 24 mL of 0.100 M NaOH solution, you would add _ mL of 0.300 M NaOH stock solution and _ mL of 0.300 M NaCl solution.

A new linear temperature scale, degrees Zunzol ( Z ), is based on the freezing point and boiling point of a newly discovered compound zunzol. The freezing point of zunzol, 22.9 C, is defined as 0 Z, and the boiling point of zunzol, 79.8 C, is defined as 100 Z. What is the freezing point of water in degrees Zunzol? What is the boiling point

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