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One compound of mercury with a formula mass of 519 g mol-1 contains 77.26%Hg, 9.25%C, and 1.17%H (with the balance beingO). Calculate the empirical and molecular formulas.
How many grams of malonic acid would be needed to make 50.0 milliliters (0.0500 L) of 0.200 M malonic acid?
formulate a complete mechanism for the thiamine-catalyzed conversion of benzaldehyde to benzoin
What is the volume of 135 mL of oxygen gas at 113°C and 870. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
A 10.0 g sample of krypton has a temperature of 25°C at 575 mm Hg. What is the volume, in milliliters, of the krypton gas?
Sodium methoxide reaction: Pipet 1.65 mL of a 25% (by weight) solution of sodium methoxide in methanol into a 10 mL reaction flask.
Consider the titration of 50.0 mL of 0.217 M hydrazoic acid (HN3, ka=2.6x10^-5) with 0.183 M NaOH. Calculate the pH of the solution after the addition of 29.7 mL of NaOH solution
The vapor pressure of a mixture of 400 g of carbon tetrachloride and 43.3 g of an unknown compound is 137 torr at 30 °C. The vapor pressure of pure carbon tetrachloride at 30 ºC is 143 torr
the products formed are sodium bromide and hydrogen sulphite. Calculate the mass of sodium bromide produced.
What is the pH of the benzoic acid solution prior to adding sodium benzoate? Express answer using 3 significant figures. 2. How many grams of sodium benzoate should be added to prepare the buffer?
The numbers indicate the relative amounts present at equilibrium, compared to 1-butene as the standard. 1-Butene: 1.0 cis-2-Butene: 7.2 Trans-2-Butene: 85 Explain this trend qualitively.
Do all ionic compounds dissolve in water, Do all covalent compounds dissolve in water? answer should be 50 to 100 words.
At 373 K, Keq = 2.39 for the following reaction: SO2Cl2(g) = SO2(g) + Cl2(g) In an equilibrium mixture of the three gases, the partial pressures of SO2Cl2 and SO2 are 3.31 atm and 1.59 atm, respectively.
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