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How many joules are released when 6.94 moles of water cools from 100.0 degrees Celsius to 0.0 degrees Celsius?
One way to isolate metals from their ores is to react the metal oxide with carbon as shown in the following reaction: 2MO(s) + C(s) → 2M(s) + CO2(g)
Which of the following hand tools would be classified as "chiral?" Ignore any writing that might normally appear on the tool
when a current of 0.156A is passed through a solution of lead(II) nitrate, lead is deposited at the cathode. How long will it take to deposit 0.10g of lead?
Determine the mass of AgNO3 (MW = 170g/mol) required to dissolve in 400 mL solution in order to prepare a solution which is .14 M AgNO3.
When 284.5 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed?
A gas was enclosed in a rigid-walled container. The initial temperature and pressure were 52°C and 0.55 atm, respectively. If the final pressure were 2.41 atm.
The nuclide As-76 has a half-life of 26.0 hours. If a sample of As-76 weighs 344 g, what mass of As-76 remains after 538 minutes.
At 350 K, Kc = 0.142 for the reaction 2BrCl(g) -> Br2(g) + Cl2(g) An equilibrium mixture at this temperature contains equal concentrations of bromine and chlorine, 0.058 mol/L. What is the equilibrium concentration of BrCl? Answer in units of M.
You have pure beta-D-glucopyranose of 100 grams nearly, it was dissolved in an ethanol/water combination with the intention to recrystallize the sugar. You get pure beta-D-glucopyranose crystals 60 grams back why this 40% loss was to happen.
What is the boiling point of a solution made by adding 6.79 g of magnesium chloride to 242.0 g of water?
Calcium reacts with iodine z=53. If a sample of the compound formed contains 7.4x10^21 calcium ions, how many iodine ions does it contain.
What are the equilibrium partial pressures? Nitrogen dioxide decomposes according to the reaction given below where Kp = 4.48 x10^-13
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