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Bess [88]
3 years ago
11

The atomic number of sodium (Na) is 11. This is also the number of which of the following?

Chemistry
1 answer:
attashe74 [19]3 years ago
3 0
D. Protons, Atomic number is the number of protons in an atom.
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Pressure can be defined as the force acting on a perpendicular surface per unit area.

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How many grams of sodium chloride are present in a 0.75 M solution with a volume of 500.0 milliliters?
saveliy_v [14]
The molarity of a solution is a type of expression of concentration equal to the number of moles solute per liter solution. In this problem, we are given the molarity equal to 0.75 M and a volume equal to 500 milliliters. <span>500 milliliters is equal to 0.5 liters. we multiply M and L to get the number of moles then multiply by the molar mass of NaCl. The answer is 21.92 grams.</span>
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