1930isainunez
18.07.2019 •
Chemistry
The molar mass of o2 is 32.0 g/mol. what mass, in grams, of o2 is required to reach completely with 4.00 mol of mg
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Ответ:
2Mg + O2 ➡️ 2MgO
Four moles of Magnesium means that the reaction can be run twice before it is depleted; two moles of O2 are required to react with this amount of Magnesium, as per the stoichiometric coefficients.
2 mol x 32 g/mol = 64 g O2 required.
Ответ:
Answer : The mass of
required is 256 grams.
Explanation :
The balanced chemical reaction will be:
First we have to calculate the moles of
.
From the balanced reaction we conclude that,
As, 2 moles of Mg react with 1 mole of
So, 4.00 moles of Mg react with
mole of 
Now we have to calculate the mass of
.
Molar mass of
= 32.0 g/mole
Therefore, the mass of
required is 256 grams.
Ответ:
No. The interval (0, 4) is not a reasonable solution because the left endpoint results in a fraction value for the function and there cannot be a fraction of a lightening bug.
Step-by-step explanation: