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8.20 grams of solute in 861 grams of water lower the freezing point to -0.430 degree celsiuscalculate the molecular mass of the nonionic solutes.
what is the order of increasing steric hindrance within these reactions and what is the reason for that order in terms of calculated energies, distance, and structures.
2 NH3(g) + 3 O2(g) + 2 CH4(g) → 2 HCN(g) + 6 H2O(g) If 5.08 103 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
determine the empirical formula of a dead alkaline battery if ofund to contain a compound of Mn and O. Its analysis gives 69.6% Mn and 34.4% O
for the reaction Mg+2HCl yeilds H2+MgCl2, calculate the percentage yield of magnesium chloride if 100.g of magnesium react with excess hydrochloric acid to yield 330.g of magnesium cholride.
A helium-filled weather balloon has a volume of 2.4 × 102 L at 99 kPa pressure and a temperature of 0°C. What is the mass of the helium in the balloon?
What is the volume of a gas at T=35.0C and P=675 torr if the same sample occupied 42.6L at T=-27.3C and P=1.000 atm.
How many grams of CH4 must be burned to release 554 kJ of heat based on this thermochemical equation:
Arrange the molecules in order of decreasing boiling point Molecules are methane, dimethyl ether
How many grams of CO2(g) would occupy a volume of 326 mL at 20.6°C and 703 torr?
MgNH4PO4.6H2O loses H2O stepwise as its is heated between 40 degree celcius and 60degree celcius the monohydrate is formed and above 100 degree celcius the anhydrous is formed what are the phosphorus percent of monohydrate and of the anhydrous mat..
What mass (in grams) of solid KCl would need to be added to 500 grams of water to make an ideal solution with a boiling point
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
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