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what mass of limestone must have dissolved if 3.05x10^10 kg of calcium hydrogen carbonate was produced?
CaCO3(S)+H2CO3(aq)-> Ca(HCO3)2(aq)
An equilibrium mixture of SO2, SO3 and O2 gases is maintained in a 11.5 L flask at a temperature at which Kc = 55.2 for the reaction shown below.
What is the volume percent of a solution prepared by dissolving 43 g of NaOH in enough water to make a final volume of 120 mL? Show your work.
The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
What mass of I2 is needed to add to a 250 mL volumetric flask to produce a solution that is 0.20 M? (Enter unit as g.)
if smaller what does this tell you about concentration you determined. write equilibrium exoression to rationalize explanation. How would temp impact ksp
A solution of H2SO4(aq) with a molal concentration of 4.37 m has a density of 1.233 g/mL. What is the molar concentration of this solution?
Assuming that N2 obeys the Van der Waal's equation, determine the Boyle temperature of 1 mol of N2 and determine the percent error in the answer knowing that the experimental value of the Boyle temperature
Describe the various strategies for the excretion of nitrogenous wastes employed in higher animals (chordates), both human and non-human
Why is 2-naphthol soluble in sodium hydroxide? Q.3 why is o-toluic acid soluble in sodium bicarbonate?
the background section describes why you want the bleach to be far in excess of the dye. state how much greater the
A steady current was passed through molter CoSO4 until 8.85 g of metallic cobalt was produced. Calculate the number of coulombs of electricity used.
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