## General Chemistry

### Gases

**1 out of 13**

Consider the reaction between nitric oxide and oxygen to form nitrogen dioxide. If 4 liters of nitrogen dioxide were formed, how many liters of nitric oxide and oxygen must have reacted?

A | 2 L of NO & 1 L of O_{2} |

B | 2 L of NO & 2 L of O_{2} |

C | 4 L of NO & 2 L of O_{2} |

D | 2 L of NO & 4 L of O_{2} |

**Ans. C**First, we should write the balanced equation. Without the balanced equation there is a good chance we might choose the incorrect answer.

According to the balanced equation, 2 liters of NO react with 1 liter of O_{2} to give 2 liters of NO_{2}. According to the question, 4 liters of NO_{2} were formed. By taking proportionality, we can say that 4 liters of NO and 2 liters of O_{2} must have reacted so far.

##
Gases Flashcard List

**13**flashcards

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