4 years ago

Sulfur, Tungsten, and Silver, they’ve got so much _______.

Chemistry

1 answer:

Alinara [238K]4 years ago

7 0

Answer: SWAg

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Scientists are studying cold and dry environments on earth that are like the environment on Mars. What kind of prokaryotes do yo

FinnZ [79.3K]

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3 years ago

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What is the mass of 3.2 moles of h2O ?

Arturiano [62]

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}$O}} \\\end{array}$