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Oksi-84 [34.3K]
2 years ago
12

How many grams of O are in 605 g of Na,O?

Chemistry
1 answer:
Elden [556K]2 years ago
6 0

Answer:

2Na2O2+2H2O⟶O2+4NaOH

2×78g                           32g

156g of Na2O2 produces 32g of O2,

12g of Na2O2 produces =15632×12=10.66g.

Density of O2 at NTP=1.428g/mL.

DensityMass=Vol.

1.42810.66=7.46mL

Vol. of O2 at NTP is 7.46mL.

Explanation:

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Answer:

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Explanation:

Step 1: Given data

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Step 2: Write the reaction for the solution of Mg(OH)₂

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Step 3: Calculate the minimum [OH⁻] required to trigger the precipitation of Mg²⁺ as Mg(OH)₂

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