# For the next questions, clearly show all the steps in solving the

problems. 0.5 marks will be deducted for each time there is a significant figure error or appropriate units are not used! Please highlight your final answer.

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Click: Problem Description

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Problem Description:

You are a workstudy for the chemistry department. Your supervisor has just asked you to prepare 500mL of 3M HCl for tomorrow's undergraduate experiment. In the stockroom explorer, you will find a cabinet called "Stock Solutions". Open this cabinet to find a 2.0L bottle labeled "11.6M HCl". The concentration of the HCl is 11.6M. Please prepare flask containing 500 ml of a 3 M (+/- 0.005M) solution and relabel it with its precise molarity. Note that you must use realistic transfer mode, a buret, and a volumetric flask for this problem.

As a reminder, to calculate the volume needed to make a solution of a given molarity, you may use the following formula:

C1V1 = C2V2

1. Calculations: (3 marks)

Volume of HCl used: ______

2. Calculate your percent error. (2 marks)

% error = (experimental concentration - 3.0 M) / 3.0 M * 100, in absolute value.

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