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inysia [295]
3 years ago
15

Please explain this to me! Thank you! :)

Chemistry
1 answer:
Anettt [7]3 years ago
6 0

Answer: e. 2:1:2

Explanation: This is a synthesis reaction with a generic expression of A + B => AB.

2 Mg + O2 => 2 MgO

So the ratio is 2: 1:2

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There are on average 43 g of sugar and 355 mL can of soda please calculate the molarity of sugar in the can of soda the molar ma
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Explanation:

Given :

Amount of solute - sucrose (C12H22O11) = 41 g

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Molarity of the solution with respect to sucrose= ?

Molarity(M) is a unit of concentration measuring the number of moles of a solute per liter of solution. The SI unit of molarity is mol/L.

Formula to find the molarity of solution :

               Molarity =  

Amount of solvent is given in mL, let’s convert to L :

               1 L = 1000 mL

Therefore, 355 mL in L will be :

                   

               = 0.355 L

We have the amount of solute in g, let’s calculate the number of moles first :

       Number of moles (n) =  

Molar mass of C12H22O11 = 342.29 g/mol.

Therefore, n =  

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