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Basile [38]
3 years ago
15

What is the atomic mass of X ? Formula of the compound is XO3? Also identify the element X ? The molecular mass of XO3 is 80? (

2 marks)
Chemistry
1 answer:
djyliett [7]3 years ago
6 0

Answer:

Explanation:

XO3

X + 3x16 = 80

x= 32  atomic mass for sulfur

SO3

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4 0
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Inessa05 [86]

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Explanation:

5 0
3 years ago
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How many grams of sodium are needed to react completely with 19
gtnhenbr [62]

Answer:

46 g of sodium

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Sodium reacts vigorously with fluoride gas to form NaF as shown

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2 moles of Na reacts with 1 mole of F2 to produce NaF

By calculating the molar mass of the elements involved in the reaction then multiplied by the mole, the mass can be obtained.

23 * 2 g/mol of Na reacts with 1 * 19 g/mol of F2

46 g/mol of Na reacts with 19 g/mol of F2 to produce NaF

Since the mole ratio is 2 to 1 and 19 g of F2 is used for the reaction, 46 g of sodium will be consumed for the reaction to be achieved.

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