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A 2.89 g sample of solid calcium carbide (CaC2) reacted with water to produce acetylene gas (C2H2) and aqueous calcium hydroxide. If the acetylene was collected over water at 16.3 C and 0.973 atm, how much acetylene was produced? Answer in units of mL
What concentration of aqueous CaCl2 solution freezes at -10.2ºC? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
a compound contain 60.87 carbon 4.38 hydrogen and 34.75 oxygen then determine its empirical formula?cof2carbonyl
How many moles of sulfur dioxide, SO2 are contained in a 5.0 L container at STP?
The instruction booklet for your pressure cooker indicates that its highest setting is 12.5 psi . You know that standard atmospheric pressure is 14.7psi
What is the equilibrium constant for the reaction N2(g) + 3 H2(g) ?? 2 NH3(g) at this temperature?
Calculating the rate of disappearance of HCl, The rate of disappearance of HCl was measured for the following reaction
in a patient with insulin-dpendent diabetes mellitus who forgot to administer insulin, you would expect to see all of the following after a high sugar meal except
If 8.0 moles of the gas A is placed in a 60.0 L tank with 1.0 moles of B at 0 degrees celsius and 1 atm, they react according to the equation: 2A(g) + B(g) ---> 3C(g) + D(g) How many moles are present in the tank when the reaction is complete
a very dilute solution contains 116 mg of fructose m180.16 gmol in 1.00 liters of solution. it is placed in a
The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding. Please show your work when answering the following questions:
2CaH18(g) + 9O2(g) > 2Ca2(g) + 18H2O(g) Enter the coefficients for each compound in order, separated by commas. For example, 1,2,3,4 would indicate one mole of C8H18, two moles of O2, three moles of CO2, and four moles of H2O.
A compound called pyrene has the empirical formula C8H5 . When 4.04 g of pyrene is dissolved in 10.00 g of benzene, the boiling point of the solution is 85.1°C.
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