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How many grams of propanol (C3H7OH, 60.10 g/mol) would be needed to make 750 mL of a solution with an osmotic pressure of 25 atm at 25°C? (R = 0.0821 L/atm/K/mol)
If a solution containing 17.76 g of mercury(II) perchlorate is allowed to react completely with a solution containing 5.102 g of sodium sulfate.
A scientists places 4.00 moles of Argon, Ar (g) and 2.00 moles of Helium, He (g) into a flask at the temperature of 298 Kelvin and measures the pressure to be 3.00 atm. calculate the pressure due to Helium gas?
Compute the number of moles of Chlorine atoms in 3.01×10^24 formula units of magnesium chloride,MgCl2 .
How much heat in is evolved or absorbed in the reaction of 2.28 grams of sodium ( Na) with water( H 2 O), express your answer in kilocalories?
Medical technicians use deoxyglucose labeled with fluorine-18 to locate tumors using a pet scan. A medical technician injects a patient with a therapeutic dose of fluorine-18.
Determine the partial pressure. Calculate the total pressure and volume in liters at STP of Nitrogen, Helium and Neon mixture.
If 23mL of 6.4M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid.
Write down the balanced chemical equation when Fe 3 O 4 reacted with carbon monoxide and calculate mass of carbon dioxide that will be produced in this reaction if 234 g carbon monoxide is reacted with excess Fe 3 O 4 ?
In a solution of acetone and ethanol, the mole fraction of acetone is 0.40. What is the concentration of acetone as a mass percent?
Calculate the density of a block.
Determine how many moles of Trisodium phosphate would be required to react with 4.0mol of Silver Nitrate?
How much heat is required to take a 15.0 g sample of ice with an initial temperature of 0.00oC and raise it to a final temperature of 75.0 oC.
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