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A piece of metal that has a density of 5.2 g/cm3 and a mass of 100 g was placed in a full jar of water. How many mL of water spilled out of the jar?
25 mL of 0.3 M HCl are diluted to 500 mL. What is the molarity of the resulting HCl solution.
A reaction mixture initially contains 0.050 M of all three chemical species in a 0.355 L vessel. What will the concentration of the SO2 be at equilibrium?
if each reactant molecule in the above image represents 0.0157 mol and the reaction yields is 89%, how many grams of Si-containing product form?
Given the reaction: Ca + 2H2O -> CA(OH)2 +H2 What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O?
When power was turned off to a 30.0 gal. water heater, the temperature of the water dropped from 75.0°C to 22.5°C. How much heat was lost to the surroundings? (1 gal = 3.785 L) Assume the density of water is 1.00 g/mL.
Calculate the number of [CH2CHOH] monomer units in the average strand of PVA (78,000 g/mol).
If 5.68 g of Cu was added to 3.18 g of S8, How much copper (I) sulfide would be produced?
Calculate [OH] for a solution formed by adding 5.00 mL of 0.140M KOH to 15.0 mL of 9.0×10-2M Ca(OH)2.
calculate the average moles of ascobic acid in the pipetted sample used for titration d)Calculate the average moles of ascobic acid in the crushed tablet.
25.0 mL of 1.50M LiOH are neutralized by 15.0mL of nitric acid. what is the molarity of HNO3?
How many grams of precipitate will form from 100mL solution that is both 0.90 M in Na2S and 0.20 M in PbCl2?
How many joules of energy are needed to melt 54 grams of ice at its melting point? Assume that the molar heat of fusion of ice is 6 kJ/mol.
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