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Calculate the equilibrium constant of the following reaction at 25 C from the standard potential data:Sn(s) + CuSO4(aq) ? Cu(s) + SnSO4(aq)
Exactly 5.00 days later, the rate of decay was found to be 177 disintegrations per minute. Calculate the half-life, in days, for the decay of this sample.
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
Microscopic representations for four different solutions containing bases are shown below. What are the relative strengths of the bases shown in I-IV?
Then 40.0 mL of this solution were titrated with 0.060 M HClO4. Calculate the pH at the first equivalence point.
The rate of a chemical reaction can sometimes be determined by measuring the change in mass of the reaction flask and its contents with time
Explain why an object whose color is purple actually absorbs visible light in the green wavelength region.
Using Heisenberg's uncertainty principle, calculate the uncertainty in the position of a 1.50 mg mosquito moving at a speed
The specific heat of copper is 0.385 J/(g x ?C). If 34.2 g of copper, initially at 25 ?C, absorbs 4.689 kJ
The mass of 322 mL of hydrogen gas at 4.0 atm and -73°C is 1.21 grams. What is the density of hydrogen gas at STP?
A 50.00-mL sample of 0.100 M KOH is titrated with 0.152 M HNO3. Calculate the pH of the solution after 52.00 mL of HNO3 is added.
A rigid vessel contains 10 kg of steam. the steam is initially at 10 bar and 300 C. After a period of time the pressure in the vessel is reduced to 1 bar due to heat transfer with the surroundings.
Suggest reasons why recrystallization from water would probably not be suitable procedure for purifying
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