Kimberlytdb
05.07.2020 •
Chemistry
What is the mass of a sample of copper that contains 4.78 x 1023 atoms?
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Ответ:
50.45679
Explanation:
mass of 1 mole(6.02 x 10^23atoms) of copper: 63.546g
so,
63.546g x 4.78 x 10^23 / 6.02 x 10^23 = 50.45679g (you could round this to the nearest decimal if u wish so)
Ответ:
Therefore, to convert the moles of gas to pressure, the scientist must know the volume and temperature of the gas, in addition to the number of moles of gas. The pressure is then given by P = nRT / V. Convert the volume and temperature to units of liters and Kelvin, respectively, if necessary.
Explanation:
brainliest pls