A 2.0 M solution of LiF had 4.00 moles of LiF added to a solvent to make it.
What is the volume of this solution?
A. 2 L
B. 3 L
C. 6 L
D. 8 L
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Ответ:
2 L
Explanation:
From the question given above, the following data were obtained:
Molarity of LiF = 2 M
Mole of LiF = 4 moles
Volume =?
Molarity of a solution is simply defined as the mole per unit litre of the solution. Mathematically, it is expressed as:
Molarity = mole / Volume
With the above formula, we can obtain the volume of the solution as shown below:
Molarity of LiF = 2 M
Mole of LiF = 4 moles
Volume =?
Molarity = mole / Volume
2 = 4 / volume
Cross multiply
2 × volume = 4
Divide both side by 2
Volume = 4/2
Volume = 2 L
Therefore, the volume of the solution is 2 L.
Ответ:
Explanation:
According to the experiment, the very nucleus of the atom is conformed by protons and neutrons, whereas electrons are diminute and have low mass in comparisson to protons and neutrons. So then, the nucleus accounts for the size and the mass of the atoms.