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defon
3 years ago
13

Calculate the mass percentage of the sulfate ion in MgSO4.

Chemistry
1 answer:
andriy [413]3 years ago
6 0

Answer:

The answer to your question is 80%

Explanation:

Data

mass percent of SO₄⁻²

molecule  MgSO₄

Process

1.- Calculate the molecular mass of magnesium nitrate

molecular mass = (1 x 24) + (1 x 32) + (4 x 16)

                           = 24 + 32 + 64

                           = 120 g

2.- Calculate the molecular mass of sulfate ion

molecular mass = (1 x 32) + (4 x 16)

                          = 32 + 64

                          = 96

3.- Write a proportion to solve this problem

                    120 g of MgSO₄ ---------------- 100 %

                      96 g of SO₄⁻²   ---------------  x

                      x = (96 x 100) / 120

                      x = 80 %                  

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Hope this helps. :)
8 0
3 years ago
Use the periodic table to find the molar mass of
Naddika [18.5K]

I can give you a clue of getting mass. if it is the atomic number is even multiply by 2 but if the atomic number is odd multiply by 2 and add 1

sodium atomic number = 11 so mass = 11*2 +1 = 23

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3 0
2 years ago
What is the oxidation state of an individual carbon atom in caco3?
Marizza181 [45]

Answer:

The oxidation state of the carbon is +4.

Explanation:

Calcium is in group 2 of the periodic table, therefore, its oxidation state is +2.

The oxidation state of the oxygen is -2.

As the compound is neutral, the sum of the oxidation states of all atoms must be 0.

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4 0
3 years ago
What is the mass of 3.25 mol of h2so4
Setler [38]

Answer/ explanation :

The find the mass,

We use this formula

Number of mole = mass/ molar mass

Since number of mole = 3.25mol

Number of mass be x

Molar mass of H2SO4

H - 1.00784 * 2= 2.01568

S - 32.065

O - 15.999 * 4 = 63.996

Note there are 2 moles of H and 4 moles of O and 1 mole of S

Molar mass of H2SO4 = 2.01568 + 32.065 + 63.996

= 98.07668g/mol

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Therefore, the number of mass is 318.749g

7 0
3 years ago
Complete the sentences to best explain the ranking.
Jobisdone [24]

Answer:

dipole-dipole forces, ion-dipole forces, higher molar mass, hydrogen bonding, stronger intermolecular forces

Explanation:

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<em>2. Therefore, when comparing H₂S and H₂Se the one with a </em><em>higher molar mass</em><em> has a higher boiling point.</em>  In this case, H₂Se has a higher boiling point than H₂S due to its higher molar mass.

<em>3. The strongest intermolecular force exhibited by H₂O is </em><em>hydrogen bonding</em><em>.  </em>This is a specially strong dipole-dipole interaction in which the positive density charge on the hydrogens is attracted to the negative density charge on the oxygen.

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4 0
3 years ago
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