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kipiarov [429]
3 years ago
14

Write a chemical equation for LiOH(aq) showing how it is an acid or a base according to the Arrhenius definition.

Chemistry
1 answer:
goldenfox [79]3 years ago
4 0

Answer:

LiOH(aq) → Li⁺(aq) + OH⁻(aq). 

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Suppose you need to prepare 141.9 mL of a 0.223 M aqueous solution of NaCl. What mass of NaCl do you need to use to make the sol
Afina-wow [57]

Answer:

1.811 g

Explanation:

The computation of the mass need to use to make the solution is shown below:

We know that molarity is

Molarity = \frac{Number\ of\ moles}{Volume\ in\ L}

So,

Number\ of\ moles = Molarity\ \times Volume\ in\ L

= 0.223\times 0.141

= 0.031 moles

Now

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where,

The Molecular weight of NaCl is 58.44 g/mole

And, the moles are  0.031 moles

So, the mass of NaCL is

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3 years ago
If 2 acid have ph value 3 and 5 respectively, which will be more acidic? Why?​
nataly862011 [7]

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My barometer is reading 1253 torr. What is the pressure in mmHg?
kobusy [5.1K]

Answer:

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Explanation:

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The rule of three or is a way of solving proportionality problems between three known values ​​and an unknown value, which can be applied to directly proportional quantities as follows:

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pressure=\frac{1253 torr*1 mmHg}{1 torr}

pressure= 1253 mmHg

<u><em>The pressure in mmHg is 1253 (option C)</em></u>

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