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3 years ago

If 200.0 grams of aluminum chloride react with calcium, how many moles of Al are produced?

Chemistry

1 answer:

irina [24]3 years ago

8 0

1.49 moles of Al will be produced. Hope this helps you.

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Calculate the mass in grams of 7.88 mol of RbMnO4

vitfil [10]

Molar mass RbMnO₄ = 204.40 g/mol

1 mole ---------- 204.40 g
7.88 mole ------ ?

mass = 7.88 * 204.40 / 1

mass = 1610.672 g

hope this helps!

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3 years ago

The mass number of an atom is equal to which of the following?

Phantasy [73]

Mass number is equal to the number of protons plus the number of neutrons in a nucleus of an atom

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3 years ago

What is the name of this compound

almond37 [142]

Hydrobrome Aicd

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2 years ago

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If the density of a 45.0 cm3 block of wood is 0.65 g/ml what is the mass of the wood?

wlad13 [49]

Answer:

$\boxed {\tt mass=29.25 \ grams}$

Explanation:

The density formula is mass over volume.

$d=\frac{m}{v}$

Rearrange the formula for the mass, m. Multiply both sides of the formula by v.

$d*v=\frac{m}{v}*v$

$d*v=m$

Mass can be found by multiplying the density and volume. The density is 0.65 grams per milliliter and the volume is 45.0 cubic centimeters.

A cubic centimeter is equal to a milliliter.

Therefore, 45 cubic centimeters also equals 45 milliliters.

$d= 0.65 \ g/mL\\v= 45 \ mL$

Substitute the values into the formula.

$0.65 \ g/mL * 45 \ mL=m$

Multiply. Note the milliliters, or mL will cancel out.

$0.65 \ g * 45=m$

$29.25 \ g=m$

The mass of the wood is 29.25 grams.

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3 years ago

Can someone help me name this hydrocarbon?

ser-zykov [4K]

2-ethyl-4,4 -dimethyl hex-1-ene.

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3 years ago