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Q. How many mL each of sodium fluoride and hydrofluoric acid must one mix to produce 1.0 L of a buffer whose pH is 3.0? How many mL each of sodium fluoride and hydrofluoric acid must one mix to produce

Solved • Sep 22, 2017

Q. To what family does the electron configuration ns2 np5 belong?

Solved • Sep 22, 2017

Q. One adds to 1.0 L of 0.25M aqueous ammonia 3.0 grams of solid ammonium chloride. What would be the pH of this buffer?

Solved • Sep 22, 2017

Q. One mixes 75 mL 0.1M sodium acetate with 50 mL 0.1 M acetic acid. What would be the final pH of this buffer?

Solved • Sep 22, 2017

Q. The vapor pressure of water at 25.0 degrees Celsius is 23.8 torr. Determine the mass of glucose (molar mass=180 g/mol) needed to add to 500.0g of water to change the vapor pressure to 22.8 torr.

Solved • Sep 22, 2017

Q. what is the average mass in grams of one Zn atom

Solved • Sep 22, 2017

Q. Place the following compounds in order of increasing boiling points; AsH_3 , NH_3 , PH_3

Solved • Sep 21, 2017