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ioda
4 years ago
13

Please help!!

Chemistry
1 answer:
Olegator [25]4 years ago
8 0
Molarity =  Moles/Liter

Use the molecular atomic mass of NaCl to convert from grams to moles.
Molecular mass of NaCl is the sum of its atomic masses. Look at the periodic table to find these. Na is 23 g/mol and Cl is 35.5 g/mol ,
so NaCl = 23 + 35.5 = 58.5 g/mol

multiply to cancel out grams
76 g NaCl * (1mol / 58.5 g NaCl) = 1.3 mol NaCl

over 1 Liter is just 1.3 M NaCl
Hope this helps!
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Answer:

If 5.9 moles of CO₂ react, 5.9 moles of CuO will also react.

Explanation:

The balanced reaction is:

CuO + CO₂ → CuCO₃

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

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You can see that the stoichiometric relationship between CuO and CO₂ is 1: 1. In other words, for each mole of CuO that reacts, one mole of CO₂ will also react.

So <u><em>if 5.9 moles of CO₂ react, 5.9 moles of CuO will also react.</em></u>

8 0
3 years ago
I don’t know it A is correct please tell me the right answer
Greeley [361]

I do believe the answer is A. Hope this helps.

8 0
3 years ago
Read 2 more answers
Determine the change in standard entropy. ΔS°. For the synthesis of carbon dioxide from graphite and oxygen:
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Let's see

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Graphite was in solid state and oxygen was in gaseous state.

When they synthesized they converted to gaseous state

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5 0
2 years ago
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Answer: Weak acids are poor conductors of electricity.

Explanation:

Weak acids are defined as the acids which dissociate weakly or partially when dissolved in water (polar solvent).

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Due to less dissociation there will be less number of ions present in a solution of weak acid. As a result, a weak acid will be poor conductor of electricity.

As electricity is the flow of ions.

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yaroslaw [1]

Explanation:

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