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Fiesta28 [93]
3 years ago
6

Isotopes are best described as two atoms of the same element that

Chemistry
1 answer:
Flura [38]3 years ago
7 0

Explanation:

they have different mass number but same atomic number

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1. Define the units for molarity. Page |152 Exp. 14 pH and Solutions Pre Lab Questions (1 of 1) 2. A solution contains 5.25 gram
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1. mol/L

2. 0.120 M

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1. Molarity is equal to the moles of solute divided by the liters of solution. The units of molarity are mol/L.

2.

Step 1: Given data

  • Mass of sodium chloride (solute): 5.25 g
  • Volume of solution (V): 750.0 mL = 0.7500 L

Step 2: Calculate the moles of solute (n)

The molar mass of NaCl is 58.44 g/mol.

n = 5.25 g × 1 mol/58.44 g = 0.0898 mol

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