Chemistry, 10.09.2019 18:30, hayleneolide
Buffer preparation. you wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acid plus acetate concentration of 250 mm and a ph of 5.0. what concentrations of acetic acid and sodium acetate should you use? assuming you wish to make 2 liters of this buffer, how many moles of acetic acid and sodium acetate will you need? how many grams of each will you need (molecular weights: acetic acid 60. 05 g mol 1, sodium acetate, 82. 03 g mol 1)?
Answers: 3
Chemistry, 22.06.2019 18:00, Jazmineboo7709
Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?
Answers: 2
Chemistry, 22.06.2019 21:30, MJyoungboy
Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.
Answers: 3
Chemistry, 23.06.2019 01:00, williedenmark42
What is the most common form of matter in the universe
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Buffer preparation. you wish to prepare a buffer consisting of acetic acid and sodium acetate with a...
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