The air in a room 16 ft by 12 ft by 12 ft is 3% carbon monoxide. starting at tequals0, fresh air containing no carbon monoxide is blown into the room at a rate of 300 ft cubed/min. if air in the room flows out through a vent at the same rate, when will the air in the room be 0.01% carbon monoxide?

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

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury

To calculate the molarity of a solution, you need to know the moles of solute and the