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4 years ago

A catalyst -

Chemistry

2 answers:

cupoosta [38]4 years ago

3 0

A catalyst increases the reactions rate

vlabodo [156]4 years ago

3 0

The naswer is d because when a catalyst reacts with a product it increases the tempeture for the reaction to occur faster

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3 years ago

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4 years ago

What are the consequences of poor nutrition.

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Explanation:

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3 years ago

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KengaRu [80]

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3 years ago

What mass of iron(III) chloride contains 4.13 1023 chloride ions?

svet-max [94.6K]

Answer:

37.3g

Explanation:

Formula of the compound:

FeCl₃

Number of chloride ions = 4.13 x 10²³ ions

First find the number of moles in this ions;

6.02 x 10²³ ions are contained in 1 mole of a substance

4.13 x 10²³ ions contains $\frac{4.13 x 10^{23} }{6.02 x 10^{23} }$ = 0.69mole chloride ions

Now;

3 mole of chloride ions are contained in 1 mole of FeCl₃

0.69 mole of chloride ions will contain $\frac{0.69}{3}$ = 0.23mole of FeCl₃

To find the mass;

Mass of FeCl₃ = number of moles x molar mass

molar mass of FeCl₃ = 55.8 + 3(35.5) = 162.3g/mol

Mass of FeCl₃ = 0.23 x 162.3 = 37.3g

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3 years ago