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Nata [24]
3 years ago
11

How many moles are in 15.5-g SiO2

Chemistry
1 answer:
DochEvi [55]3 years ago
8 0

Answer:

0.26 moles

Explanation:

Number of moles = mass/molar mass

Mass of SiO2 = 15.5g

Molar mass of SiO2 = 60.08g/mol

Number of moles = 15.5g/60.08g/mol

=0.257

= 0.26 moles

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ser-zykov [4K]

Answer:

0.52 mol

Explanation:

Using the general gas equation formula:

PV = nRT

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P = pressure (atm)

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R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

At STP (standard temperature and pressure), temperature of a gas is 273K, while its pressure is 1 atm

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3 years ago
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Bezzdna [24]

Answer:

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5 0
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