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a balloon filled with helium gas at 1.00 atm occupies 15.6 L. What volume would the balloon occupy in the upper atmosphere, at a pressure of .15 atm
If a buffer solution is 0.440 M in a weak acid (Ka = 1.0 × 10-6) and 0.230 M in its conjugate base, what is the pH?
Determine how would you compare the escape velocity of asteroid Y as compare to the escape velocity of asteroid X?
find the number of moles of water that can be formed if you have 218 moles of hydrogen gas and 104 moles of oxygen gas
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 6.0 g of silver plating.
What is the molarity of a solution made by dissolving 74.8 g of strontium perchlorate in sufficient water
A 4.78-g sample of aluminum completely reacts with oxygen to form 6.67 g of aluminum oxide. Calculate the mass percent composition of aluminum in aluminum oxide
How much heat is required to raise the temperature of a 464g of lead from -20.0C to 219C
What is the final concentration if 75.0 mL of a 3.50 M glucose solution is diluted to a volume of 400.0 mL?
Calculate How many mL of the HCl solution was required for the titration.
What is the chemical name for CuSO4? a. Copper sulphate b. Copper sulphur oxide c. Copper (II) sulphate d. Copper (I) sulphate
How many grams of KHP are needed to exactly neutralize 27.4 mL of a 0.235 M potassium hydroxide solution ?
What mass of O2 is required for the complete combustion of 68.9 g of pentane, C5H12, to CO2 and H2O?
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