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A solution is 0.010 M in both Br- and SO42-. A 0.250 M solution of lead(II) nitrate (Pb(NO3)2) is slowly added to it. a) which anion will precipitate first? b) what is the concentration in the solution of the first ion when the second one starts to precipitate at 25 C?
A gas held at 798 mmHg in a 400 mL flask is released into a 3 L flask.Whats the new gas pressure?
Determine the heat of combustion per gram of octane and the heat of combustion per mole of octane?
What is the pH of a solution obtained by adding 75.0mL of 0.366M CsOH to 250.0 ml Ba(OH)2 solution with a pH of 11.65.
What is the density of a block of marble that occupies 350 cm3 and has a mass of 660 g?Answer in units of g/cm
Calculate the pH of a dilute solution that contains a molar ratio of potassium acetate to acetic acid (pKa = 4.76) of 5:1? Enter answers with 2 decimal points.
What is the molarity of a solution prepared by dissolving 10.5 grams of NaF in enough water to produce 750 mL of solution?
if a sample of gas at 25.2 C has a volume of 536 mL at 637 torr, what will its volume be if the pressure is increased to 712 torr.
Would Br2 react faster with a tropylium cation or cyclooctatetrene? Not sure if the aromaticity of the cation comes into play here. Please justify your reasoning
How much PV work is done if 88.0 grams of C 2H 4 ethylene and 120 grams of hydrochloric acid HCl are permitted to react at atmospheric pressure and the volume change = -70.3 Litres?
You dissolve 261 mmol of sodium bicarbonate into a total volume of 1.2 L. What is the molarity of sodium bicarbonate in this solution?
How many moles of methane (CH4) gas are in 745 mL at 25.5C and 730 torr?
how many grams of H2 are needed to react with an excess of N2 and produce 6,867 grams of NH3? the molar mass H2 is 2.016g and the molar mass NH3 is 17.04g
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