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Radda [10]
2 years ago
9

Please help

Chemistry
1 answer:
Sauron [17]2 years ago
6 0

Answer:

D) is the answer please thanks

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a solution of copper sulfate slowly evaporates beautiful blue crystals made Cu(11) and sulfate ions from such that water molecul
adelina 88 [10]

Answer:

36.08%

Explanation:

We are given the overall formula of the compound as: CuSO4•5H2O

Now, atomic mass of the elements are;

Cu = 63.55 g/mol

S = 32.07 g/mol

O = 16 g/mol

H20 = 18.02 g/mol

Now, let's calculate the total mass of the compound:

(63.55 g/mol) + (32.07 g/mol) + 4(16 g/mol) + 5(18.02 g /mol) = 249.72 g/mol

From the above, water in the compound is 5(H20)

Thus, total water atomic mass = 5 × 18.02 = 90.1 g/mol

Thus, percentage of water = (atomic mass of water/total mass of compound) × 100%

Percentage of water = (90.1/249.72) × 100% = 36.08%

6 0
2 years ago
Write the charge balance for a solution that contains h , oh–, mg2 , hso4–, so42–, mg(hso4) , mg(oh) , na , and no3–.
Olenka [21]
A solution is when a solute is added to a water solvent. Since water is neutral, the charge of the said solution is dictated by the charge of the ion. This is the subscript of the element. If it is not stated, then we use the common ion form.

1. H: The charge for hydrogen ion is +1.
2. OH⁻: The charge is ⁻1.
3. Mg2: This ion has a charge of +2.
4. HSO₄⁻: -1
5. SO₄²⁻: -2
6. Mg(HSO₄): This is not an ion, but an undissociated compound. So, it has a neutral charge of 7.
7. Mg(OH): Neutral at pH 7
8. Na: Sodium ion has a charge of +1.
9. NO₃⁻: -1.
5 0
3 years ago
Please help me out! :))
Leto [7]

Answer:

Pretty sure its B sorry if im wrong

Explanation:

4 0
3 years ago
What is the Democratus​
Anna [14]

Answer:

Democritus was an Ancient Greek pre-Socratic philosopher primarily remembered today for his formulation of an atomic theory of the universe. Democritus was born in Abdera, Thrace, around 460 BC, although there are disagreements about the exact

Explanation:

8 0
3 years ago
Suppose you held two magnets a short distance apart,then let go. what would happen?
Murljashka [212]
The two magnets ought to join together given that at least, if not both, have a strong enough magnetic force to do so.
4 0
3 years ago
Read 2 more answers
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