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What is the mass percent of a sodium fluoride solution prepared by dissolving 0.64 moles of sodium fluoride into 63.5 grams of water?
Aluminum and oxygen react according to the following equation: 4 Al (s) + 3 O2 (g) → 2 Al2O3 (s) What mass of Al2O3, in grams, can be made by reacting 4.6 g Al with excess oxygen
What is the equilibrium concentration of Cl at 1000 ? What is the equilibrium concentration of COCl2 at 1000 ?
Advantages and disadvantages of using Alternative Fuel and Would you consider buying one of these in the future? Why or Why Not and Why do you think there are not more of these vehicles in use?
Select all of the correct statements about reaction rates from the choices below. The lower the rate of a reaction the longer it takes to reach completion.
The steel bomb of bomb calorimeter, which has a volume of 75 mL, is chaged with oxyen to a pressure of 145 atm at 22 C. Calculate the moles of oxygen in the bomb. Calculate the grams of oxygen in the bomb.
A 55.0-{ g} piece of ice at 0.0 C is added to a sample of water at 8.0 C. All of the ice melts and the temperature of the water decreases to 0.0 C.
A saturated solution of Ag2CrO4 prepared by dissolving solid Ag2CrO4 in water has [CrO4]= 6.5x10^-5M. Calculate Ksp for Ag2CrO4.
If 100. mL of 1.60 M Na2SO4 is added to 200. mL of 2.40 M NaCl, what is the concentration of Na+ ions in the final solution? Assume that the volumes are additive.
A 20.0 ml sample of 0.200 M K2CO3 solution is 30.0 ml of 0.400 M Ba(NO3)2 solution. Barium Carbonate precipitates. The Concentration of barium ions, Ba^2+, in solution after reaction is?
The following reaction is investigated (assume an ideal gas mixture): 2N2O(g) + N2H4(g)-> 3N2(g) + 2H2O(g) Initially there are 0.10 mol N2O and 0.25 mol N2H4, in a 10.0 L container. If there are 0.06 mol of N2O at equilibrium, how many moles of N..
A solution is prepared by dissolving 396g of sucrose (C2H22011) in 624g of water. What is the vapor pressure of this solution at 30 degrees.
A 50.0-mL sample of 0.50 M HCl is titrated with 0.50 M NaOH. What is the pH of the solution after 28.0 mL of NaOH have been added to the acid?
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