2 attempts left Check my wor! Enter your answer in the provided box. Find the density...
3 attempts left Check my work Enter your answer in the provided box. Calculate the density of helium in a helium balloon at 24.7°C. (Assume that the pressure inside the balloon is 1.01 atm.) g/ml
3 attempts left Check my work Check my work Enter your answer in the provided box. At 31°C a sample of ammonia gas exerts a pressure of 4.70 atm. What is the pressure when the volume of the gas is reduced to one-tenth (0.10) of the original value at the same temperature? atm
3 attempts left Check my work Enter your answer in the provided box. Determine the pressure of N, (in atm) under the following conditions. 32.0 g at 13.3°C in 5.00 L L atm
9 attempts left Check my work Enter your answer in the provided box. Calculate the volume (in liters) occupied by 1.59 moles of nitric oxide (NO) at 6.46 atm and 65°C 9.95
2 attempts left Check my work Enter your answer in the provided box. Ammonium nitrate, a common fertilizer, is used as an explosive in fireworks and by terrorists. It was the material used in the tragic explosion at the Oklahoma City federal building in 1995. How many liters of gas at 307°C and 1.00 atm are formed by the explosive decomposition of 25.7 kg of ammonium nitrate to nitrogen, oxygen, and water vapor? gas
5 attempts left Check my work Enter your answer in the provided box. A constant current is passed through an electrolytic cell containing molten MgC2 for 17.0 h. If 4.30 x 105 g of Cl2 are obtained, what is the current in amperes?
2 attempts left Check my work Enter your answer in the provided box. If 30.0 mL of 0.150 M CaCl, is added to 36.0 mL of 0.100 M AgNO,, what is the mass of the AgCI precipitate? 0.22
3 attempts left Check my work Enter your answer in the provided box. Calculate the concentration of HNO, in a solution at 25°C that has a pH of 2.79. (HNO3) -
3 attempts left Check my work Enter your answer in the provided box. Calculate the pOH of an aqueous solution of 0.062 M NaOH at 25°C. РОН
2 attempts left Check my work Enter your answer in the provided box. A solution of 1.15 g of solute dissolved in 25.0 mL of H20 at 25°C has a boiling point of 100.750°C. What is the molar mass of the solute if it is a nonvolatile nonelectrolyte and the solution behaves ideally (d of H20 at 25°C = 0.997 g/mL)? g/mol