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3 years ago

What is the mass of 0.28 moles of iron

Chemistry

2 answers:

Xelga [282]3 years ago

4 0

1 mole has mass = 56 g

0.28 mol has mass = 56 x 0.28 = 15.68 g

Hope this helps!

Greeley [361]3 years ago

4 0

<h2>Answer:</h2>

Given data:

Number of moles of iron = 0.28 M

Mass of iron = ?

Solution:

Formula : Mass of iron = Number of moles of iron * Molecular mass of iron

Putting values in above formula:

Mass of iron = 0.28 * 55.84 = 15.63

Mass of iron = 15.63

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2 years ago

A hot air balloon is filled with 15 moles helium gas and 5 moles nitrogen gas. What is the volume of the balloon at 1.01 atm and

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3 years ago

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3 years ago

Read 2 more answers

A gas has a volume of 1.75L at -23C and 150.0kPa. At what temperature would the gas occupy 1.30L at 210.0kPa?

Katen [24]

Answer:

T2 = 260 K

Explanation:

Given data:

P1 = 150.0 k Pa

T1 = (-23+ 273.15) K = 250.15 K

V1 = 1.75 L

P2 = 210.0 kPa

V2 = 1.30 L

To find:

T2 = ?

Formula:

$\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}$

$T_2 = \frac{P_2 V_2 T_1}{P_1 V_1}$

Calculation:

T2 = (210.0 kPa) x (1.30 L) x (250.15 K) / (150.0 kPa) x (1.75 L)

T2 = 260 K

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3 years ago