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3 years ago

Suppose that you measured out 3.50g of Na2SO4. how many moles would you have? (show work)

Chemistry

1 answer:

Ket [755]3 years ago

5 0

Answer:

Na2SO4 is equal to 0.0070401642780093 mole.

Explanation:

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Explanation:

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3 years ago

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3 years ago

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3 years ago

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A cylindrical glass tube of length 27.4cm and radius 4 cm is filled with gas. The empty tube has a mass of 254.3 g. The tube fil

Temka [501]

Density of the gas is 3.05 × 10⁻³ g / cm³.

Explanation:

Volume of the cylinder = π r² h

where r is the radius and h is the height of the height or the length of the glass tube.

Here r = 4 cm and h = 27.4 cm

Volume of the cylinder = 3.14 × 4 × 4 × 27.4 = 1376.6 cm³

We have to find the mass of the gas by subtracting the mass of the tube filled with the substance from the mass of the empty tube.

Mass of the substance = 258.5 - 254.3 = 4.2 g

We have to find the density using the formula as,

$$ Density = \frac{mass}{volume}$

Plugin the values as,

$$ Density = \frac{4.2}{1376.6}$

= 3.05 × 10⁻³ g / cm³

So the Density of the gas is 3.05 × 10⁻³ g / cm³.

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3 years ago

Suppose that you measured out 3.50g of Na2SO4. how many moles would you have? (show work)​

Suppose that you measured out 3.50g of Na2SO4. how many moles would you have? (show work)