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A 350 mL buffer solution is .150 M in HF and .15 M in NaF. What mass of NaOH can this buffer neutralize before the pH rises above 4.00?
does it mean that the solution will shift towards the products because there is excess of reactants? what does it mean when the solution is orange (is it shifting towards products or reactant)?
What is the theoretical yield of SO 3 produced by the quantities described in Part A and How many Oxygen molecules are required to react with 7.82g of S?
A 95.0 gram piece of ice at 0.0 degrees celcius is added to a sample of water at 8.0 degrees celcius. All of the ice melts and the temperature of the water decreases to 0.0 degrees celcius. How many Kg of water were in the sample?
Gaseous ammonia reacts with oxygen gas to produce gaseous nitrogen monoxide and liquid water. If 750 grams of ammonia and 750 grams of oxygen gas were mixed
Trichlorofluoromethane (CCl3F) boils at 23.8C, and its molar heat of vaporization is 24.8 kJ/mol. Calculate the molar entropy of evaporation of CCl3F(l).
suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen. what is the limiting reagnant?
An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gases called air.
calculate (a)molality? (b)molarity of NaCl? (c) What is the mass/mass and remove the most loosely held e- from a gaseous atom in a ground state
Calculate the osmotic pressure at 25°C of an aqueous solution of 1.00 g/L of a protein having molar mass=2.50×104 g/mol.
when 7.50g of magnesium reacts with 9.50g hydrochloric acid, hydrogen gas is formed. what is the limiting reagent?
During a tritration, 34.62 mL of 0.1510 M NaOH was needed to neutralize 50.0 mL of an H2SO4 solution. What was the concentration of the original sulfuric acid solution?
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women. a)How many groups could be formed? b) which sex is in excess? By how much? (show calculation..
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