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yaroslaw [1]
3 years ago
6

Which physical property is being used to separate the mixtures in each of the following cases?

Chemistry
1 answer:
kirill115 [55]3 years ago
6 0

I think that this is

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What is the concentration of 10.00mL of HBr if it takes 16.73 mL of a 0.253M LiOH solution to neutralize it?
Fudgin [204]
The chemical reaction would be expressed as follows:

HBr + LiOH = LiBr + H2O

We are given the volumes and corresponding concentration to be used for the reaction. We use these values to solve for the concentration of the other reactant. We do as follows:

0.253 mol LiOH / L solution ( 0.01673 L ) ( 1 mol HBr / 1 mol LiOH ) = 0.00423 HBr needed

Concentration of HBr =0.00423mol / .010 L = 0.423 M HBr 
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3 years ago
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tangare [24]

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you didn't ask a question so here is your explanation.

Explanation:

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Since the number of atoms in a substance is so large , a unit to count them was created. This unit is the number of atoms in 12
larisa86 [58]

The number of atoms in one mole of any substance is measured by Avogadro's number. The value of Avogadro's number is 6.023 x 10 ^23. It is named after scientist Avogadro who proposed this number. 12 grams of carbon-12 represents 1 mole of carbon-12. For this reason, the number of atoms present in 1 mole of any substance is 6.023 x 10 ^23. Therefore, the number of atoms present in 1 mole carbon-12 is 6.023 x 10^23.


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7 0
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How many moles of lithium are in 18.2 grams of lithium
Doss [256]

Answer:

I think 2.6 sorry if its wrong

6 0
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What happens to the reaction c2h6 + 137 kj c2h4+h2 when the temperature of the reaction is increased?
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