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Explain how many grams of Al(ClO4)3(Mm=326 g/mol) must be added to 365 g of water to make a solution with a colligative molality of 0.345 m?
A reaction with the activation energy Ea= 219.00 kJ/mol, has a rate constant k = 2.400 x 101 at 565.00 Kelvin. Determine the rate constant when the temperature is changed to 861.00 Kelvin. R = 8.314 J K-1mol-1
when you heat up popcorn it loses water explosively and nbspit pops. suppose a kernel of corn weighing 0.125 grams
Determine the molar mass of the substance if 120.0 grams of a pure sample contained 24.0 mol of the substance. Express your answer in g/mol.?
you wish to make a 0.355 m hydrobromic acid solution from a stock solution of 3.00 m hydrobromic acid. how much
The barometric pressure was 768.6 mmHg when the open end manometer attached to a flask holding a gas read 13.0 mmHg. (mercury level highest on the side connected to the flask.) what is the pressure of the gas in the flask in kilopascals?1.00 atm =..
at equilibrium the flask containing the reacting mixturenis 4 cog --gt nico4gcontains 232 torr co 1240 torr nico4 and
the second contains 0.1 mol Na2S , and the third contains 0.1 mol CaCl2 . What net ionic equations for the precipitation reaction or reactions that occur. What are the spectator ions in the solution
air initially occupying 1 m3 at 150 kpa 20degc undergoes an internally reversible compression during which pvn
To what volume should you dilute 150 mL of an 8.00 M CuCl_2 solution so that 55.0 mL of the diluted solution contains 5.9 g CuCl_2?
what volume of a 1.75M Calcium hydroxide solution is needed to completely neutralize 100ml of a 2.25M phosphoric acid solution
How much heat is required to warm 221 g of ice from -44.9°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
A 757 mL gas sample at STP is compressed toa volume of 202 mL, and the temperature isincreased to 30 degrees C. What is the new pressureof the gas in Pa?
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