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500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid are left over after the reaction is complete?
2 NH3 (aq) + H2SO4(aq) → (NH4)2SO4 (aq)
1.202 g of a solid white acid are dissolved in water and completely neutralized by the addition of 35.26 mL of 0.482 M NaOH. Calculate the molar mass of the acid, assuming it to be a monoprotic acid.
Calculate the molarity of a solution of HBr if 34.80 mL of the HBr solution neutralize 0.834 g of Na2CO3. The following is the unbalanced equation for the reaction
A closed container holds 3.14 mol of C(s) and 12.3 mol of O2(g) at 4.94 atm and -4°C. After the reaction has been run to completion (the only product is CO2(g)).
the national institute for occupational safety and health (NIOSH) sets standered for ccl4 in air at 12.6 mg/m^3 of air
What mass of sucrose should be combined with 493 g of water to make a solution with an osmotic pressure of 9.00 atm at 320 K? (Assume the density of the solution to be equal to the density of the solvent.)
Determine the acid content of the vinegar as wt % CH3COOH, acetic acid
Calculate the resulting pH if 400 mL of 0.50M HCl is mixed with 300 mL of 0.080 M NaOH.
The total volume of hydrogen needed to fill the Hindenberg was 2.0x10^8 L at 1.00 atm and 25 C. How many kilojoules of energy were evolved when it burned?
What is the pH of a buffer solution if 100.0 mL of the solution is 0.15 M with respect to acetic acid and contains 1.56 g of sodium acetate, CH3COONa.
What type of error is this associated with the concentration of Cu2+ and why is it so? what is the concentration (in mole/L or M) of Cu2+ and NO3- in the final solution
When 56.0 g calcium and 34.7 g nitrogen gas undergo a reaction that has a 88.0% yield, what mass of calcium nitride forms?
Determine the final temperature of the mixture. (Use 1g/mL as the density of water)
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