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Problem- Consider a solution made by mixing HCN (Ka = 6.2 x10-10) with HC2H3O2 (Ka = 1.8 x10-5) in aqueous solution. What are the major species in solution?
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How much heat is required to raise the temperature of 42.5 g of water from its melting point to its boiling point?Express your answer numerically in kilojoules.
a mixture of a and b is found to obey raoults law. at 60 degrees celcius the vapor pressure of pure a is 400 mm hg and
The vapor pressure of pure CH2Cl2 (with molecular weight 85 g/mol) is 133 torr at 0?C and the vapor pressure of pure CH2Br2 (with molecular weight 174 g/mol) is 11 torr at the same temperature.
How many grams of H2 are needed to react with 3.10 g N2?
If all the energy obtained from burning 1.26 pounds of ethane (fuel value is 11.36 kcal/g) is used to heat 123.0 kg of water at an initial temperature of 22.0 °C, what is the final temperature
What is the %Cu (by mass) in the metal oxide product formed when Cu2CO3(OH)2 decomposes upon heating above 200°C?
When 200ml of 0.11M hydrochloric acid (HCl) is mixed with 800ml of 0.10M methylamine (CH3NH2), write the net ionic reaction that favors products and occurs as the solutions are mixed. Then write the equilibrium reaction that you would use to solve..
What current is required to depostit, on the cathode, 5.00 g of gold/hr from a solution containing a salt of gold(III)
Using Slater's rules, calculate the relative effective nuclear charge on a 3p electron in : a)aluminum and (b) chlorine. Explain how results relate to:-the relative atomic radii of the two atoms
Problem- While in Europe, if you drive 113km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 38.0mi/gal ? Assume that 1euro=1.26dollars.
A gas cylinder of 55.0L volume contains N2(g) ata pressure of 32.5atm and 23.0C. What mass of Ne(g) must be introduced into this same cylinder to raise the total pressure to 65.0atm
1.248-g sample of limestone rock is pulverized and then treated with 30.00 mL of 1.035 M HCl solution. the excess acid then requires 11.56 mL of 1.010 M NaOH for neutralization.
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