How many grams of sodium formate nacho2 would have to be
How many grams of sodium formate, NaCHO2, would have to be dissolved in 1.3 L of 0.45 M formic acid (pKa 3.74) to make the solution a buffer for pH 3.75?
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You are considering an annuity which costs $127,392 today. The annuity pays $7,700 a year at an annual interest rate of 4.5 percent. What is the length of the annuity time period?
An intersection approach volume is 1,500 veh/h and includes 12% left turns with a through-vehicle equivalent of 2.3 tvu's/left turn. What is the total equivalent through volume on the approach
If 50 applicants are chosen at random, what is the probability that 17 or more of them will meet the GPA threshold? (Note: You’ll want to use your answer from part a. If you’re not sure about this answer (and even if you are), be ve
A scaffold of mass 57 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
How many grams of sodium formate, NaCHO2, would have to be dissolved in 1.3 L of 0.45 M formic acid (pKa 3.74) to make the solution a buffer for pH 3.75
The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5
A CMFR is to be designed to remove contaminant A from water with a steady-state efficiency of 95 percent. The decay reaction is zeroth order, with a rate constant of 0.1M/h. The inlet concentration of A is 0.5 M.
What is the Gibbs free energy for this reaction at 5546 ? Assume that and do not change with temperature. At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium
you purchased an old machine at the beginning of this year.maintanance on this old machine will be 100$ at the end of this year but is expected to increase by $25 each year after. what is the present worth of five years of the cost of maintanance
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