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A buffer is prepared by mixing 10.0 g of sodium bicarbonate,NaHCO3 (formula mass=84.01 g/mol) and 10.0 g of sodiumcarbonate, Na2CO3 (formula mass=106.0 g/mol)with sufficient water to make 250.0 mL of solution. 50.0-mL of this buffer solution is reacted with 50.0 mL of0.250 M HCl (aq). Calculate the pH of the mixture thatforms.
Express the concentration of a 0.0720 M aqueous solution of fluoride, F-, in mass percentage and in parts per million
Problem- A .2602 gram sample of an unknown monoprotic acid requires 12.23 ml of 0.1298 M NaOH to reach the end point. What is the molar mass of the acid
On a given day, the atmospheric pressure of the air in Utah was 0.802 atm. What was the partial pressure of nitrogen in this air?
How can the molarity of chloride ion be calculated when 16 mL (2 mL intervals) of 12 M HCL is added to 5 mL of 0.4 M CO(NO3)2?
how would an applied chemist utilize a theortical molecular reaction that had performed well in the acadenic lab to
Explain what is the specific heat capacity of gold if it requires 48.8 J to raise the temperature of 15 grams of gold 25 C
A student isolated and purified trimyristin from nutmeg and then proceeded to do a saponification reaction converting the trimyristin into myristic acid. Suggest and explain, based on what you have learned in this class, how the student could conf..
solution of an unknown monoprotic acid with 23.68 mL of .9721 M NaOH results in a solution pH of 3.74 Calculate the Ka of the acid.
Under constant pressure conditions, a sample of hydrogen gas initially at 88.0 degree C and 9.50 L is cooled until its final volume is 3.00L. what is its final temperature
The normal boiling point of bromine is 58.8°C. Given that the vapor pressure of methanol is 75.0 torr at 2.5°C, calculate the molar enthalpy of vaporization of bromine.
a voltaic cell is constructed with a agag half-cell and a cdcd2 half-cell. the silver electrode is positive. write
Half-life equation for first-order reactions: where is the half-life in seconds , and is the rate constant in inverse seconds . Part A What is the half-life of a first-order reaction with a rate constant
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