What is the total combined mass
an automobile gasoline tank holds 21 kg of gasoline. When gasoline burs, 81 kg of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
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What is the simplest formula for Chalcocite if a sample of this ore contains 8.274 g copper and 2.088 g sulfur?
A sealed balloon is filled with 1.00 L of helium at 23 degrees celsius and 1.00 atm. The baloon rises to a point in the atmosphere where the pressure is 220 torr and the temperature is -31 degrees celsius. what is the change in volume of the ballo
Johnson Industries received a contract to develop and produce four high-intensity long-distance receiver/transmitters for cellular telephones. The first took 2,000 labor hours and $39,000 worth of purchased and manufactured parts; the second to
A solution of ethanol (C2H5OH) in water is prepared by dissolving 63.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
The robot’s control memory has a 10 bit capacity. It is assumed that the mechanical errors associated with the arm are normally distributed with the mean at the given taught point and an isotropic standard deviation of 0.10mm.&nb
Suppose that 0.82 g of water condenses on a 80.0 g block of iron that is initially at 24 C.If the heat released during condensation goes only to warming the iron block, what is the final temperature of the iron block? (Assume a constant enthalpy o
how many calories of heat energy was absorbed? Express our answer numerically in calories using two significant figures.
The elastic modulus of diamond is measured by applying a force parallel to the body diagonal of the unit cell and measuring the displacement.
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