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Hydrogen and oxygen combine in the ratio...

Hydrogen and oxygen combine in the ratio of 1:8 by mass to form water. What mass of oxygen gas would be required to react completely with 3 g of hydrogen gas?

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To solve the problem of how much oxygen gas is required to react completely with 3 grams of hydrogen gas, we will follow these steps: ### Step 1: Understand the mass ratio We know from the problem that hydrogen and oxygen combine in the ratio of 1:8 by mass to form water. This means: - 1 gram of hydrogen (H) reacts with 8 grams of oxygen (O). ### Step 2: Set up the proportion Given that 1 gram of hydrogen reacts with 8 grams of oxygen, we can set up a proportion to find out how much oxygen is needed for 3 grams of hydrogen. ...
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Knowledge Check

  • Carbon and oxygen react in ratio 3 : 8 by mass to form CO_(2) . What weight of carbon should be used to react completely with 32 g of oxygen ?

    A
    10 g
    B
    15 g
    C
    12 g
    D
    7 g
  • The ratio of the mass of hydrogen to the mass of oxygen is always ____ .

    A
    `2:1`
    B
    `1:8`
    C
    `8:1`
    D
    `1:2`
  • How many grams of oxygen (O_(2)) gas reacts completely with 1.0g of calcium?

    A
    `0.6 g`
    B
    `1.6 g`
    C
    `4.0 g`
    D
    `0.4 g`
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