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a tank in a room at 19 C is initially open to the atmosphere on a day when the barometric pressure is 102kpa. A block of dry ice (solid CO2) with a mass of 15.7 kg is dropped into the tank which is then sealed .The reading on the tank pressure initially rises very quickly then much more slowly eventually reaching a value of 3.27 mpa. A ssume T final=19C. How many moles of air in the tank initially ?
Metals such as magnesium and zinc react with dilute sulfuric acid to give hydrogen, according to the equation: M (s) + H2SO4 (aq) -------> MSO4 (aq) + H2 (g) When 5.00 g of a mixture of powdered magnesium and zinc were dissolved in diluted sulfuri..
if 6.73 g of Na2CO3 is dissolved in enough water to make 250 ml of solution, what is the molarity of the sodiam carbonate?
The component of structure responsible for holding the 4 chains of hemoglobin together is a. primary
The mass spectrum of an organic compound shows the relative abundances of M to be 36.44% and M 1 to be 8.277%. Assuming the peaks are caused by 12C and 13C isotopes
An aerosol spray can with a volume of 350 mL contains 3.2 g of propane gas (C3H8) as propellant. What is the pressure (in atmospheres) of gas in the can at 65oC?
What combination of properties is responsible for the selection of trinitrotoluene as a military explosive?
Compute the mass of air in an air-filled tire and the also determine the mass of He in a helium-filled tire
The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of the non-volatile solute in the solution?
Determine the amount of energy involved in calories given off when 85 grams of H2O cools from 45 degrees Celsius to 25 degrees Celsius?
What volume would be occupied by 100 g of oxygen gas at a pressure of 1.50 atm and a temperature for 25° c?
design a series of reactions to convert ethanol to 2-butanol. You can use other inorganic reagents you need, but only ethanol
what advantage does using the Wiley extractor have over simply pouring acetone over the meat again and again?
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