A Sample of Gas (1

question 52

Multiple Choice

A sample of gas (1.9 mol) is in a flask at 21 °C and 697 mmHg. The flask is opened and more gas is added to the flask. The new pressure is 795 mmHg and the temperature is now 26 °C. There are now _ _ mol of gas in the flask.

• A) 2.9
• B) 0.28
• C) 2.1
• D) 1.6
• E) 3.5

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