Question

Сколько молекул каждого вещества содержится в 1 г. CO2, HCl, NH3?

Answer 1

Количество молекул высчитывается по формуле: N=n(ню)*Na

Na-постоянная Авогадро,к-ая=6,02*10 в 23 степени 1/моль

1)n(CO2)=m/M=1г/44г/моль=0,023 моль(примерно)

N=0,023 моль* 6,02*10 в 23 степени 1/моль=0,13846*10 в 23 степени

2)n(HCl)=1г/36,5г/моль=0,027 моль

N=0,027 моль* 6,02*10 в 23 степени 1/моль=0,16254*10 в 23 степени

3)n(NH3)=1г/17г/моль=0,059 моль(примерно)

N=0,059* 6,02*10 в 23 степени 1/моль=0,35518*10 в 23 степени

Answer 2

Number of Molecules in 1 gram of CO2, HCl, and NH3

To determine the number of molecules in 1 gram of each substance, we need to use the concept of molar mass and Avogadro's number.

1. CO2 (Carbon Dioxide): - The molar mass of CO2 is approximately 44 grams/mol. - Avogadro's number is approximately 6.02 x 10^23 molecules/mol. - Therefore, in 1 gram of CO2, there are approximately (6.02 x 10^23) / 44 molecules of CO2. 2. HCl (Hydrochloric Acid): - The molar mass of HCl is approximately 36.5 grams/mol. - Avogadro's number is approximately 6.02 x 10^23 molecules/mol. - Therefore, in 1 gram of HCl, there are approximately (6.02 x 10^23) / 36.5 molecules of HCl. 3. NH3 (Ammonia): - The molar mass of NH3 is approximately 17 grams/mol. - Avogadro's number is approximately 6.02 x 10^23 molecules/mol. - Therefore, in 1 gram of NH3, there are approximately (6.02 x 10^23) / 17 molecules of NH3. Please note that these calculations are approximate and assume that the substances are pure and in their standard states.

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