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MrRissso [65]
2 years ago
10

(35 POINTSSSS)help plzzz do as much as u can

Chemistry
1 answer:
grigory [225]2 years ago
5 0

Answer:

the required anions and cations are :

<h3> cation / anion</h3>

  • Al 3+ / Cl -
  • Al 3+ / PO3-
  • Be 2+ / I -
  • Sr 2+ / F -
  • K + / N 3-
  • Na + / S 2-
  • Ca 2+ / Cl -
  • Na + / Br2-
  • Mg 2+ / S 2-
  • Al 3+ / O 2-
  • Li + / P 3-
  • Cs + / N 3-
  • K + / I -
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What is the mass of 5.119 102 molecules of copper sulfate<br> (CuSO4)?
Amiraneli [1.4K]

Answer:

Mass = 135.66 ×10⁻²¹ g

Explanation:

Given data:

Number of molecules of CuSO₄= 5.119×10²

Mass of CuSO₄= ?

Solution:

The given problem will solve by using Avogadro number.

1 mole contain 6.022×10²³ molecules

5.119×10² molecules ×1 mol / 6.022×10²³ molecules

0.85×10⁻²¹ mol

Mass in grams:

Mass = number of moles × molar mass

Mass = 0.85×10⁻²¹ mol × 159.6 g/mol

Mass = 135.66 ×10⁻²¹ g

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2 years ago
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gayaneshka [121]

Answer:

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