Answered

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which of the following gas samples would have the largest number of representative particles at STP?

a) 0.10 L Xe
b) 0.007 L SO3
c) 12.0 L He
d) 7.0 L O2

Sagot :

Ardni313idn

c) 12.0 L He would have the largest number of representative particles at STP

Further explanation

Given

The gas samples

Required

The largest number of particles

Solution

The largest number of particles = the largest amount of moles

At STP 1 mole = 22.4 L and 1 mole = 6.02 x 10²³ particles

Quickly we will be able to determine that option C has the largest number of particles because it has the largest number of volumes

or we can find the mole of each gas sample

Let's find each mole of the gas sample

a. 0.10 L Xe

[tex]\tt \dfrac{0.1}{22.4}=0.0045[/tex]

b. 0.007 L SO3

[tex]\tt \dfrac{0.007}{22.4}=0.00031[/tex]

c. 12.0 L He

[tex]\tt \dfrac{12}{22.4}=0.536[/tex]

d. 7 L O2

[tex]\tt \dfrac{7}{22.4}=0.313[/tex]

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