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Each copper (II) sulfate unit is associated with five water molecules in crystalline copper (II) sulfate pentahydrate (CuSO4 ⋅ 5H2O). When this compound is heated in air above 100oC, it loses the water molecules are also its blue color:
CuSO4 ⋅ 5H2O → CuSO4 + 5H2O
If 9.60 g of CuSO4 are left after heating 15.01 g of the blue compound, calculate the number of moles of water originally present in the compound.
An empty Erlenmeyer flask weighs 261.9 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 465.2 g. What is the flask's volume in cm^3?
If 285.5 mL of SO2 reacts with 158.9 mL of O2 (both at 315K and 50.0 mmHg) what is the limiting reactant and theoretical yield of SO3
Problem 1: The experimentally determined rate law for the following reaction indicates that the reaction is second-order in AB and that the reaction is second-order overall.
If an unknown compound contains only C, H, and O. Combustion of 6.80 g of this compound produced 15.5 g of CO2 and 6.33 g of H2O.
State a net ionic equation for the neutralization reaction of ammonium chloride as well as sodium hydroxide. Identify the spectator ions.
When electrical current of unknown magnitude is run through the device for 4.00min , 13.1mL of water-saturated H2(g) is collected. The temperature and pressure of the system are 25C and 715torr. A. How many moles of hydrogen gas are produced
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Explain why the melting point of 4-bromonitrobenzene is considerably higher than that of the 2-isomer
A solution is prepared by mixing 87.0 mL of 5.00 M HCl and 36.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+ ], [OH - ], and the pH for this solution.
This molecule has a charge of n-. By changing the overall charge, n, from 1- to 2- to 3- we get three different polyatomic ions. For each of these ions a) identify the central atom and b) determine the formal charge of the central atom, X.
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