How many moles of hydrochloric acid will react with one mole of aluminum hydroxide to produce a neutral solution

Chemistry

1 answer:

galina1969 [7]3 years ago

8 0

Answer: 3 moles of HCl

Explanation: let’s do a balanced chemical equation

Al(OH)3 + 3HCl —> AlCl3 + 3H2O

We see that for every 1 mole of Al(OH)3 we need 3 moles of HCl

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Part C Number of molecules in 8.437x10-2 mol C6H6

N76 [4]

Answer:

There are $5.08\times 10^{22}\ \text{molecules of}\ C_6H_6$

Explanation:

In this problem, we need to find the number of molecules in $8.437\times 10^{-2}$ mol of $C_6H_6$ .

The molar mass of $C_6H_6$ is $6\times 12+1\times 6=78\ g/mol$

No of moles = mass/molar mass

We can find mass from above formula.

$m=n\times M\\\\m=8.437\times 10^{-2}\ mol\times 78\ g/mol\\\\m=6.58\ g$

Also,

No of moles = no of molecules/Avogadro number

$N=n\times N_A\\\\N=8.437\times 10^{-2}\times 6.023\times 10^{23}\\\\N=5.08\times 10^{22}\ \text{molecules}$

Hence, there are $5.08\times 10^{22}\ \text{molecules of}\ C_6H_6$

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3 years ago

Which of the following expressions best represents a second order rate law?

Ksivusya [100]

I think the correct answer would be C. The expression that would best represent a second order rate law would be r =k[X][Y]. Reaction with this rate law are those that depend on the concentration of two first order reactants or a second order reactant.

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3 years ago

What is (part of life)and(art of life)?someone will answer me

irinina [24]

Explanation:

Part of life is the role we certainly play during our role in life.Like a quote of shakespeare,we have our roles in earth to perform or we are like a chess whom we don't want to waste a move.

Art of life signifies that our life is wonderful with mysteries and hypotenic beauty and wonders and with different moments in a journey.

Keep smiling and hope u r satisfied with my answer.Have a great day :)

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2 years ago

What is the volume of a solid with a mass of 17.4 g and a density of 0.934 g /cm cubed?

Anvisha [2.4K]

Answer:

18.6 g/cm^3

Explanation:

17.4g/0.934g/cm^3

(divide)

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