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A vessel contains 0.90 g liq H2O in equilibrium with water vapor at 30C. At this temperature, the vapor pressure of H2O is 31.82 torr. What volume increase is necessary for all the water to evaporate?
How many milliliters of 0.100M NaOH are required to neutralize 85.0mL of 0.250M H2SO4. The balanced neutralization reaction is
A buffer containing 0.42 M base, B, and 0.28 M of its conjugate acid, BH+,has a pH of 8.86. What is the pH after 0.0020mol of HCl is added to 0.25 L of this solution
2 NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) Heating a 1.7184-g sample of impure NaHCO3 gives 0.196 g of CO2. What was the mass percent of NaHCO3 in the original 1.7184-g sample?
What percentage of Phospine is decomposed after 1.25 min? c) How long will it take to decompose one fifth of the phosphine?
The first step of the fischer esterification involves protonation of the oxygen of the carboxylic acid by the acid catalyst:
carbon monoxide and water vapor each at 200. torr were introduced into a 250. ml container. when the mixture reached
How many grams of nitrogen monoxide are produced when copper metal reacts with nitric acid to form water and 5.92 g of copper(II) nitrate in addition to the nitrogen monoxide
Which has the highest vapor pressure?
positron x and positron y are each traveling at the same speed. how does the de broglie wavelength of the two positrons
65.50 mL of 0.161 M HF is titrated with 0.1200 M NaOH. What is the pH at the equivalence point? (Ka for HF is 6.8 x 10-4)
1. what mass of phosphorous trichloride forms when 125g of P4(S) reacts with 323g of chlorine gas?
a trapeze artist swings from a rope 4.15 m long in a simple harmonic motion with a period of 4.1 s calculate the value
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