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DENIUS [597]
3 years ago
15

Identify this reaction HBr+ Al(OH)3 —-> H2O + AlBr3

Chemistry
1 answer:
Vikki [24]3 years ago
5 0
<h2><em><u>Answer</u></em></h2>

Neutralization reaction

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What is the molarity of a solution containing 8.9 g of NaOH in 550. mL of NaOH solution?
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Answer:

0.4 M

Explanation:

Molarity is defined as moles of solute, which in your case is sodium hydroxide,  

NaOH

, divided by liters of solution.

molarity

=

moles of solute

liters of solution

Notice that the problem provides you with the volume of the solution, but that the volume is expressed in milliliters,  

mL

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convert the volume of the solution from milliliters to liters

So, to get the number of moles of solute, use sodium hydroxide's molar mass, which tells you what the mass of one mole of sodium hydroxide is.

7

g

⋅

1 mole NaOH

40.0

g

=

0.175 moles NaOH

The volume of the solution in liters will be

500

mL

⋅

1 L

1000

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=

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n

V

c

=

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0.5 L

=

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