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Many household cleaning products contain oxalic acid, H2X2O4 , a diprotic acid with the following dissociation constants: , . Calculate the equilibrium concentration of C2O4^2- in a 0.20M solution of oxalic acid.
determined that each molecule of the unknown base could accept two protons. What is the molar mass of this unknown compound?
Calculate the resulting discharge temperature and the required horsepower for one stage compression of the following gas properties. Construct a plot of such discharge temperature and required horsepower versus one stage compression ratios of 2, 3..
Find the neergy of a photon of ultraviolet light whose frequency is 2 x 10^16 Hz. Do the same for the photon of radio waves
Why should the flask be immersed in boiling water as much aspossible? What effect will it have in determining the molecularweight? Explain.
What is the pH of a buffer solution made by mixing 150mL of 0.200 M acetic acid and 150 mL of 0.100 M sodium acetate
for the reaction represented by the equation cl2 + 2kbr 2kcl +br2 how many moles of potassium chloride are produced from 119 g of potassium bromide?
If the colder block originally weighed 200g and the warmer one 100g, calculate the final temperature and the entropy change of the universe for this process.
55.0 calories of heat are added to a small lead block. If the temperature of the lead increases from 27.0°C to 59.2°C, what must be the mass of the lead block?
A balloon has a volume of 1.75L at a temperature of 25°C. What will be the volume of the balloon if you take it out into the winter cold air at -15°C?
Write the balanced chemical equation for the following reaction. Phases are optional. Solid iron(II) hydroxide decomposes to form solid iron(II) oxide and liquid water.
a portable water heater transfers 225 watts of power to 5.5 l of water. how much time will it take the water heater to
how many liters of O2 can be made from 342 g H2O2 if the density of O2 is 1.428 g/L?
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