geezelouise808
22.05.2020 •
Chemistry
What is the total pressure in atm of a mixture of gases with the following partial pressures? CO2 = 1.33 atm CO = 0.54 atm NO = 0.78 atm
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Ответ:
CH₂
Explanation:
First we convert the given masses of elements into moles, using their respective molar masses:
C ⇒ 0.556 g ÷ 12 g/mol = 0.0463 mol CH ⇒ 0.0933 g ÷ 1 g/mol = 0.0933 mol HNow we divide those results by the lowest value between the two of them:
C ⇒ 0.0463 / 0.0463 = 1H ⇒ 0.0933 / 0.0463 = 2Meaning the empirical formula is CH₂.