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andreyandreev [35.5K]
3 years ago
7

In a chemical reaction, 36 grams of hydrochloric acid reacts with 40 grams of sodium hydroxide to produce sodium chloride and wa

ter. Which statement is correct?
The mass of water formed is 76 grams.
The mass of sodium chloride formed is 76 grams.
The mass of water formed is greater than 76 grams.
The mass of sodium chloride formed is less than 76 grams.
Chemistry
2 answers:
Blizzard [7]3 years ago
5 0
The mass of sodium chloride is less then 76g. Explanation: NaOH is limiting reagent (1 mol), HCl is excessive reagent (>1 mol). NaCl will be 1 mol (equal to NaOH) in the reaction: HCl + NaOH -> NaCl + H2O. Mass of NaCl will be: 1 mol * 58.5 g/mol = 58.5 g < 76 g.
Elena L [17]3 years ago
3 0
The answer is <span>The mass of sodium chloride formed is less than 76 grams.
</span>
Remember Mass is never gained or loss in any chemical reactions

So,

hydrochloric acid  + sodium hydroxide  =>  <span>sodium chloride + water
                          Total 76 gram                         Total will also 76 gram

In this case, the mass of sodium chloride will be less than 76 gram because we need to take out the mass of the water.

</span>
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In atomic solids where the lattice points are occupied by Group 8 ( 18) atoms, the atoms are held together by __________ forces.
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Explanation:

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Give the empirical formula for C↓8H↓8
mr_godi [17]

Answer:

Empirical formula of  C₈H₈ =  CH

Explanation:

Data Given:

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Empirical Formula = ?

Solution

Empirical Formula:

Empirical formula is the simplest ration of atoms in the molecule but not all numbers of atoms in a compound.

So,

tha ration of the molecular formula should be divided by whole number to get the simplest ratio of molecule

        C₈H₈ Consist of  Carbon (C), and Hydrogen (H)

Now

Look at the ratio of these two atoms in the compound

                         C : H

                         8 : 8

Divide the ratio by two to get simplest ratio

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                       8/8 : 8/8

                         1   :  1

So for the empirical formula is the simplest ratio of carbon to hydrogen 1 : 1

So the empirical formula will be

                     Empirical formula of  C₈H₈ =  CH

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