3 attempts left Check my work Enter your answer in the provided box. Calculate the density...
Enter your answer in the provided box. Calculate the density of helium in a helium balloon at 34.7 ° 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
3 attempts left Check my work Enter your answer in the provided box. Calculate the number of grams of solute in 137.1 mL of 0.258 M calcium acetate. g solute
3 attempts left Check my work Enter your answer in the provided box. A sample of chlorine gas occupies a volume of 823 mL at a pressure of 609 mmHg. Calculate the pressure of the gas (in mmHg) if the volume is reduced at constant temperature to 215 mL. Enter your answer in scientific notation. mmHg
Saved 3 attempts left Check my work Enter your answer in the provided box. When 23.4 mL of 0.500 M H2SO4 is added to 23.4 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17ºC. Calculate AH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water =...
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
3 attempts left Check my work Enter your answer in the provided box. An ideal gas originally at 0.85 atm and 65°C was allowed to expand until its final volume, pressure, and temperature were 94 mL, 0.60 atm, and 49°C, respectively. What was its initial volume? mL
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