How many grams of Na2O are required to produce 1.60 x 102 grams of NaOH? Na2O + H2O ---> 2 NaOH

Answer 1
This is a typical stoichiometry question.To answer this question you want to get a relationship between #Na_2#O and NaOH.
So you can get a relationship between the moles of #Na_2#O and moles of NaOH by the concept of stoichiometry.
#Na_2#O + #H_2#O ----------------> 2 NaOH.
According to above balanced equation we can have the stoichiometry relationship between #Na_2#O and NaOH. as 1:2
It means 1 moles of #Na_2#O is required to react with one mol of #H_2#O to produce 2 moles of NaOH.

When one mole of Na_2O reacts with water, it yields two moles of NaOH, or 80 g of NaOH, with a mass of 62 g.

62 g of #Na_2#O produces 80 g of NaOH.
1g of NaOH is produced from 62/80 g of #Na_2#O
1.6 x #10^2# g of NaOH will require 62 x 1.6 x #10^2# g / 80 of #Na_2#O
124g of #Na_2#O.
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Answer 2

To find out how many grams of Na2O are required to produce 1.60 x 10^2 grams of NaOH, you need to use stoichiometry. Since the balanced equation shows that 1 mole of Na2O produces 2 moles of NaOH, you can use the molar mass of Na2O to find the amount needed. The molar mass of Na2O is 61.98 g/mol. So, you first convert the grams of NaOH to moles, then use the stoichiometric ratio to find the moles of Na2O needed, and finally convert that to grams.

  1. Convert grams of NaOH to moles: (1.60 \times 10^2 \text{ g NaOH} \times \frac{1 \text{ mol NaOH}}{40.00 \text{ g NaOH}} = 4.00 \text{ mol NaOH})

  2. Use the stoichiometric ratio to find moles of Na2O: (4.00 \text{ mol NaOH} \times \frac{1 \text{ mol Na2O}}{2 \text{ mol NaOH}} = 2.00 \text{ mol Na2O})

  3. Convert moles of Na2O to grams: (2.00 \text{ mol Na2O} \times \frac{61.98 \text{ g Na2O}}{1 \text{ mol Na2O}} = 123.96 \text{ g Na2O})

Therefore, 123.96 grams of Na2O are required to produce 1.60 x 10^2 grams of NaOH.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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