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Problem- Determine the amount of acid or base required to adjust the pH of a water sample from 11 to 8.5, given that the initial alkalinity is 80 mg/L as CaCO3.
Solve the problem and provide complete solution
A solution (volume = 100.0 ml) contains 0.27 M HCOOH(formic acid, Ka=1.8*10^-4) and 0.39 M KHCOO. a. Determine the pH of the solution b. We add 4.00 ml of 4.0 M HNO3 to this solution. Determine the new pH.
A 1.348 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution.
Coal reserves contain 3.87 x 10^16 moles of carbon. If efficiency is 40% how much gross energy can this produce by burning? Assume constant pressure.
What are the masses in kg of solution A and solution B required, to make 100 kg of a mixture containing 25% ethyl alcohol by mass
exists for each of these chemical reaction types above and why might it be of importance to healthcare professionals?
How many moles of CO2 will be produced if 3.119 g of O2 are reacted completely?
The freezing point of a solution of 1.048 g of an unknown nonelectrolyte dissolved in 36.21 g of benzene is 1.39°C. Pure benzene freezes at 5.48°C and its Kf value is 5.12°C/m. What is the molecular weight of the compound?
A salt dissolves in water to form a green solution. A precipitation is formed when the aqueous solution is treated with buffer NH4C/NH3 and thioacetamine.
A mixture of 65 mol% methane, 30 mol% hydrogen, and 5 mol% nitrogen is burned to heat a boiler used to produce hot steam. The ratio of CO2 to CO in the exhaust gas is 10:1.
what is the q solution in Jouls and what is the q rxn in Joules? What is the Delta H rxn in KJ/mo of HNO3 neutralized?
In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed?
a what is the shortest possible wave length of light that can beemitted by such an atom? assume all transitions are
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