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Gaseous methane (CH4) will react with gaseous oxygen(O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). Suppose 0.48g of methane is mixed with 1.31g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction.
A 14.31 g sample of hydrated magnesium sulfate (MgSO3• x H2O) is heated to remove the water of crystallization and 6.99 g of anhydrous magnesium sulfate (MgSO4) remains.
how would you prepare 100ml of 0.5M NaOH? Calculate the mass of NaOH needed, and describe the procedure and glassware you would use.
Illustrate and show calculations how you would prepare 2 liters of a pH 8 buffer using 0.4 M Na3PO4 and 0.5 M HNO3. Explain reasoning at each step of the way ion calculation.
octane has a density of 0.692g/ml at 20C. How many grams of O2 are required to burn 30.5 gal of C8H18
Derive the activation energy for the reaction that has a rate constant of 3.5 x 10^-5 s-1 at 25C and the rate constant of 4.8 x 10^-4 s-1 at 45C.
Explain a sample of methane (CH4) gas contains a small amount of helium. Compute the volume percentage of helium if the density of the sample is 0.70902 g/l at 0.0 C and 1.000 atm
which two metals are plated, and what is the total potential? c) If 3.00 g of metal is plated in the voltaic cell, how much metal is plated in the electrolytic cell?
At 25?C the heat of fusion of aluminum is 10.6kj/mol and the heat of sublimation is 326.4 kj/mol. What is the heat of vaporization of aluminum at 25C
The choice of precipitating reagent is important. Briefly explain what the consequences would be if excess 6M NaOH solution instead of 6M NH3 solution were used to separate Fe3+ and Al3+ ions from Ca2+, Cu2+,
State the purpose for adjusting the water level inside/outside of a gas collecting vessel to be equal when determining the moles of gas evolved in the reaction
A solution is 2.25% by weight NaHCO3. How many grams of NaHCO3 are in 250.0 g of solution
By titration it is found that 43.1mL of 0.169 M NaOH(aq) is needed to neutralize 25.0mL of HCl(aq). Compute the concentration of the HCl solution.
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