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3 years ago

What is the mass of a 2.00 cm3 peice of balsa wood having a density of 0.160 g/cm3

Chemistry

2 answers:

Leya [2.2K]3 years ago

8 0

I think the answer is = .32

Nana76 [90]3 years ago

7 0

mass = volume times density

2.00 x 0.160 = 0.32 grams

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jonny [76]

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$\large \boxed{1.447 \times 10^{23}\text{ molecules Cu(OH)}_{2 }}$

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$\text{No. of molecules} = \text{0.240 36 mol Cu(OH)}_{2} \times \dfrac{6.022 \times 10^{23}\text{ molecules Cu(OH)}_{2}}{\text{1 mol Cu(OH)}_{2}}\\\\= 1.447 \times 10^{23}\text{ molecules Cu(OH)}_{2}\\\text{The sample contains $\large \boxed{\mathbf{1.447 \times 10^{23}}\textbf{ molecules Cu(OH)}_{\mathbf{2}}}$}$

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4 years ago