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A student needs to determine the volume occupied by a gas in a 125 mL flask...

A student needs to determine the volume occupied by a gas in a 125 mL flask using the experimental setup described in the procedure. The student measures the volume of the flask to be 156 mL to the top of the flask. The student measures the volume of the flask with a stopper in it to be 138 mL. The student performs the experiment by reacting the strip of magnesium with 5 mL of HCl solution. What is the volume of the flask occupied by the hydrogen gas?

Enter your answer to three significant figures and in units of mL.

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Expert Solution

Solution :-

Measured volume of flask up to top = 156 ml

Volume of flask with stopper= 138 ml

Volume of HCl = 5.0 ml

Using this information we can find the volume of gas in the flask

Volume of flask = volume of flask with stopper – volume of HCl

                             = 138 ml – 5.00 ml

                            = 133 ml

Therefore the volume of the gas in the flask will be 133 ml

queen_honey_blossom answered 2 years ago
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