- 1. Claculate the figures missing from the chart below:?

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Calculate the pH of a 0.352 M aqueous solution of acetylsalicylic acid (aspirin) (HC9H7O4, Ka = 3.0×10-4). pH =? Calculate the number of grams in 1.15 x 10^21 molecules of P2O5.
Choices: 7.43 x 104 g 27.1 g 0.271 g 1.35 x 10-5g? Student measures a pressure of 775mmHg for a volume of 565 mL. Calculate the pressure for the same experiment with a volume of 585 mL.? What s is the percent yield of lead (in) nitrate and sodium iodide Pb(NO3)2 + 2 NaI = PbI2 + 2 NaNO3? What is the concentration of CO in ppm and percent by volume of 103 micrograms/m^3? assume a temp of 25C and pressure of 1atm?