Question

hydrogen and oxygen combine in the ratio of the 1:8 by mass to from water what mass of oxygen Gas would be required to react completely with 3g of hydrogen gas​

Answer 1

Answer:

Therefore, 24g Oxygen gas would be required to react completely with 3g of hydrogen gas .

Explanation:

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Answer 2

Answer:

24g

Explanation:

1:8 is the ratio given in which hydrogen and water combine by mass.

So whatever mass each element is, when we simplify them, we should get 1/8 , which gives 1:8.

Let's take the mass of oxygen as $x$, since it is unknown.

The mass of hydrogen is given as 3g.

1:8 can be written as 1/8.

So, 1/8=3/$x$

$x$=8×3

=24

∴ 24g of oxygen would be needed.