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Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.160 M HClO(aq) with 0.160 M KOH(aq). The ionization constant for HClO 4.0*10-8. (a) before addition of any KOH (b) after addition of 25.0 mL of KOH (c) after addition of 30.0 mL of KOH (d) after addition of 50.0 mL of KOH
Consider the following reaction: 2 HI(g) -> H2(g) + I2(g) If 3.55 moles of HI(g), 0.550 moles of H2, and 0.630 moles of I2 are at equilibrium in a 1.00 L container at 915 K
What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0 kg calcium phosphate with 1.0 kg concentrated sulfuric acid (98% H2SO4 by mass)?
A chemist wants to make 6.5 L of a 0.270 M solution. What mass in grams should the chemist use?
When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a prefix with the unit.
determine the pressure exerted by 1.80 mol of gas in a 2.92-L container at 32.0 degrees celsius.
when a 50.0-g nugget of pure gold is heated from 35.0 C to 50.o C, it absorbed 5200.0J of energy. find the specific heat of gold.
If solubility of a gas is 7.5 g/L at 404 kPa pressure, what is the solubility of the gas when the pressure is 2021 kPa?
determine How many grams of Phosphine (PH3) can produce if 37.5 grams of P4(phosphorus) and 83.0 Litres of H 2 gas react at STP?
A sample of water in the vapor phase (no liquid present) in a flask of constant volume exerts a pressure of 429 mm Hg at 97 °C. The flask is slowly cooled
How many hours will it take to produce 61.0 kg of Al metal by the reduction of Al3+ in an electrolytic cell using a current of 484 amps?
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
Calculate the heat released when 2.57 L of Cl2(g) with a density of 1.88 g/L reacts with an excess of sodium metal at 25°C and 1 atm to form sodium chloride.
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