1.0 moles of helium is put into a balloon giving it a volume of 22.4 Liters. How many moles of helium is left in the balloon if some leaks out and the new volume of the balloon is 18.4 liters?
O 1.2 mol
O 0.82 mol
O 0.67 mol
O 1.48 mol

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Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11