Chemistry: In which year were the populations of light and dark colored moths the most different?

In which year were the populations of light and dark

jayme2407

24.10.2021

1900

Explanation:

I’m not sure but in 1900 98% of the moths were dark

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deemy0292

26.06.2020

Explanation:

Molarity is defined as the number of moles per liter of solution.

Mathematically, Molarity = $\frac{no. of moles}{volume of solution in liter}$

Since it is given that the molarity of a solution of 14.0 g and volume is 150 mL or 0.15 L.

Whereas number of moles = $\frac{mass}{molar mass}$

So, molar mass of $NH_{4}Br$ is 97.94 g/mol.

Thus, number of moles = $\frac{14.0 g}{97.94 g/mol}$

= 0.142 mol

Therefore, calculate the molarity as follows.

Molarity = $\frac{no. of moles}{volume of solution in liter}$

= $\frac{0.142 mole}{0.15 L}$

= 0.946 mol/L

Hence, we can conclude that molarity of the solution is 0.946 mol/L.

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