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How many grams of silicon tetrafluoride (gas) at room temperature, would fill the same volume as that occupied by 440 grams of carbon dioxide at 290 degrees C and 900 torr?
2NO2(g)has come to equilibrium, the concentration of NO2 is 2.2 x 10-3 mol/L. Calculate the molar concentration of O2 at equilibrium.
What is the pH of the solution when the titration is half way to the end point?
Is heat absorbed or evolved in the course of this reaction? Calculate the amount of heat transferred when 45.0 g of CH3OH (g) is decomposed by this reaction at constant pressure.
A sample of ethanol (C2H5OH) has a mass of 43.8 g.(a) How many carbon atoms does the sample contain?
Consider a solution that is 0.01M formic acid and 0.2M hydrochloric acid. Determine the pH of this solution.
How many milliliters of 0.160 M Na2S are needed to react with 35.00 mL of 0.315 M AgNO3 Na2S(aq) + 2 AgNO3(aq) ? 2 NaNO3(aq) + Ag2S(s)
The Al2O3 does not react. If the sample residue weighs 2.489 g, what is the mass fraction of Fe2O3 in the original sample?
What minimum volume of 14.0M hydrochloric acid would be required to completely dissolve a 700.0g iron bar
What is the theoretical yield of AgCl if 30.2 mL of 0.1000 M AgNO3 reacts with an excess of 0.1000 M HCl
Estimate the temperature where ?G=0 for the following reaction: (giving ?H= -176 kJ, and ?S= -284.5 J/K) CAUTION Beware of units. NH3(g)+HCl(g)--->NH4Cl(s)
hydrazine derivatives are commonly used in rocket fuels. combustion of n2h4 produces n2g and h2og. when 1.00 g of n2h4
What is the molarity of a solution made by dissolving 2.355g of sulfuric acid in water and diluting to a final volume of 50.0 mL
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