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A beaker contains 100 grams of 0.50 M NaCl. If you transfer 50 grams of the solution to anouther beaker, what is the molarity of the solution remaining in the first beaker?
What will be the final temperature of a 15.0g sample of water that is heated with the addition of 4.2kJ at 18 0C
Explain how does unique physical and chemical properties of water contribute to significance of water for life on Earth to survive.
Octane has a density of 0.692g/mL at 20 ^ C. How many grams of O2 are required to burn 1.10gal of C8H18.
A freeway has 10,000 vehicles per hour passing a house 200 m away. Each car emits an average of 1.5 g/mi of NOx, and winds are blowing at 2 m/s across the freeway towards the house.
what is the maximum amt of (Ba2+) that can be maintained in 1.9 L of a .030 M solution of Na2SO4.
How many seconds are required to produce 4.94 mg of chromium metal from an acidic solution of potassium dichromate, using a current of 0.234 A?
Find the mass of a reactant using Dalton's law of partial pressures, ideal gas law, and stoichiometry - Determine the amount of zinc metal in grams consumed in the reaction.(Vapor pressure of water at 25 o C-23.8mmHg)
A helium-filled balloon has a volume of 2.63 L at 28 ? C. The volume of the balloon decreases to 2.36 L after it is placed outside on a cold day.
Determine the pressure, in torr and atm, of 3.94 mol carbon monoxide gas in a 4.25 Litre tank at temperature 31 degrees Celsius.
For the given reaction, 2 HCl (aq) + Ba(OH)2 (aq) BaCl2 (aq) + 2 H2O (l) 73.0 grams of HCl are allowed to react with 342 grams of BaCl2.
What types of limitations and obstacles must any plausible origin of life scenario overcome, and why did Crick believe life couldn't have formed on Earth?
Using an aqueous solution of Ba(NO3)2 the density of this solution is measured to be 3.640g/ml and this solution containing barium nitrate mole fraction of 0.01704. compute the molarity of this solution?
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