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Calculate the mass of ammonium phosphate in a 815mL, 0.163 mol/L sample of ammonium sulfate (NH4)2SO4(aq) solution.
Many people use a solution of trisodium phosphate, Na3PO4 to clean walls before putting up wallpaper. The recommended concentration is 1.7% (m/v). Calculate the molar concentration.
- What mass of zinc is needed to react with 23.1 g of phosphoric acid according to the following equation?
3 Zn + 2 H3(PO4) 🡪 3 H2 + 1 Zn3(PO4)2
What is amount of energy released in the formation of one mole of SrO bonds . The radius of stronium ion is 113pm and the radius of the oxide ion is 140pm?
What is the new volume of a 500.0 mL solution of NaCI with a concentration of 3.00 M that is diluted to a
concentration of 2.50 M?
What is the molarity of a solution containing 33.5 g of NaCl dissolved in 500. mL of water?
What is the molarity of a solution containing 33.5 g of NaCl dissolved in 500. mL of water?
Equilibrium constant for the reaction H2 + I2 2HI are 50.62 and 41.00 at 443 and 500 oC respectively Calculate change in free energy and eat of solution.
The norma boiling point of water is 100oC under what pressure will water boil at 102 oC ? The heat of vaporization of water is 2259jg-1
Express the concentration of solution in % w/v containing 12 g sodium chloride
and 50 ml of water.
