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State the number of grams of water that can be obtained by the reaction of 324g of Ag with 126g of HNO3?
They started with 0.47 grams of a mixture containing 0.143 grams of the acid and recovered 0.117 grams of benzoic acid. What was their percent recovery?
A cube of lead (? = 11.3 x 103 kg/m3) is placed in a pool mercury (? = 13.6 x 103 kg/m3). The cube of lead is 3.60 x 102 cm on a side. Calculate the percentage of the cube that is above the pool of mercury.
What is the pH of the solution which results from mixing 25 mL of 0.30 M HF(aq) and 25 mL of 0.30 M NaOH(aq) at 25 ºC? (Ka of HF = .00072)
when 2.00 x 10 3 g of CaCo3 are heated the actual yield of Cao is 1.05 x 10 3 g. what is the percent yield?
You have a gas occupying 75L at 800 torr and 315K. What is the volume if the pressure is decreased to 600 torr and the temp is changed to 127 C?
Why is sodium bicarbonate used with acids and used in cooking
A 29.0-g sample of water at 290. K is mixed with 51.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
draw the structure or structures of ALL the carbocations that could potentially form from the alkenes, and 3) label each carbocation as primary, secondary, or tertiary.
Sodium sulfate dissolves as follows: Na2SO4(s) 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M.
Calculate the concentration of Hg2+, HgCl+, and HgCl2 that result when 1.00 L of a 0.100M Hg(NO3)2 solution is mixed with an equal volume of 0.100M HgCl2 solution.
What is the volume of 0.5694 moles of gold? Density of gold is 19.30 g/mL The atomic mass of gold is 196.97.
Lead has a face-centered cubic lattice with all atoms at the lattice points and a unit-cell edge length of 495.0pm its atomic mass is 207.2 amu what is the density of lead?
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