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An average adult inhales a volume of 0.50 l of air with each breath. if the air is warmed from room temperature (20c) to body temperature (37c) while in the lungs. what will the volume of exhale air be?
You want to produce a mixture containing 19 wt% NaCl. Find the volume of the second feed solution.
if 76g of Cr2O3 and 27 g of al completely react to form 51 g of Al2O3 how many grams of Cr are formed?
a 55.0g piece of copper wire is heated, and the temperature of the wire changes from 19.0C to 86.0C. The amount of heat absorbed is 1.4 kilojoules. What is the specific heat of copper?
Using the potential energy diagram below, answer the following questions concerning the given reaction: Draw the structure the is represented by the following 1, 2, 3and 4
When 2.00 g of NaOH is added to 50.0 ml of 1.0 M HCl solution in a constant pressure calorimeter, the temperature increased by 13.1oC. Calculate the heat of neutralization in KJ/mol
Assuming that equilibrium has been reached, calculate Kc and Kp for the reaction.
Acetylene, C2H2, will burn in the presence of oxygen. 2C2H2(g)+ 5O2(g) -> 4CO2(g)+ 2H2O(g) how many grams of water can be produced by the reaction of 2.40 mol of C2H2 with 7.4 mol of O2?
Cabernet Sauvignon with a pH of 3.64. How many times more acidic is the Sauvignon Blanc? Please show work thoroughly and answer both questions.
a metal sample weighing 45.0 grams and at a temperature of 99.1 degrees Celsius was placed in 38.6 grams of water in a calorimeter at 25.0 degrees Celsius. The calorimeter reached a maximum temperature of 32.8 degrees Celsius.
what is the ph of a solution that is 0.100 M in HCl and also 0.125 M in HC2H3O2? What is the concentration of the acetate ion in this solution?
How many kilograms of methane (CH4) are in perfectly insulated piston with the following properties: Volume = 2 cubic meters.
if 7.o moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the maximum amount of sulfur trioxide, how many moles of which reactant remain unused at the end.
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