sample of gas

Bailey BrownBailey Brown Staff asked 4 years ago

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

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

1 Answers
Best Answer
Selena TateSelena Tate Staff answered 4 years ago

 A sample of gas (1.9 mol) is in a flask at 21 °C and 697 mm Hg.  The flask is opened and more gas is added to the flask.  The new pressure is 795 mm Hg and the temperature is now 26 °C.  There are now __________ mol of gas in the flask.
Solution:
2.1