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dsp73
3 years ago
10

Scientists studying squirrels in a forest observed that the squirrel population decrease over a period of five years. which stat

ement is the most likely explanation for the decrease in the population?
A) the death rate was greater that the birth rate.
B) the birth rate was equal to the death rate
C) the rate of immigration was equal to the rate of emigration
D) the rate of emigration was less than the rate of immigration ​
Chemistry
1 answer:
ratelena [41]3 years ago
5 0

Answer:

b

Explanation:

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Answer:

\boxed{\text{57.7 g} }

Explanation:

The first step is to calculate the molar mass of H₂O:

\begin{array}{rcr}\text{2 H} & = & 2.02\\\text{1 O} & = & 16.00\\\text{TOTAL} & = & \mathbf{18.02}\\\end{array}

So, 1 mol has a mass of 18.02 g.

Next you calculate the mass of 3.2 mol of H₂O

\begin{array}{rcl}m & = & \text{3.2 mol H$_{2}$O} \times \dfrac{\text{18.02 g H$_{2}$O}}{\text{1 mol H$_{2}$O}}\\ & = &\boxed{\textbf{57.7 g H$_{2}$O}} \\\end{array}

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