2 years ago

Convert 0.859 mg to cg. Help me plz :(

Chemistry

1 answer:

andrey2020 [161]2 years ago

7 0

Answer:

0.0859

Explanation:

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Convert 12 x 1025 kg/mL to fg/cm3

Anna35 [415]

Answer:

$1.2x10^{38}\frac{fg}{cm^3}$

Explanation:

Hello there!

In this case, for such unit conversion we need to realize that 1 kg is equal to 1000 g, 1 g is equal to 1x10⁹ and 1 mL equals 1 cm³, therefore we apply:

$12x10^{25}kg*\frac{1000g}{1kg} *\frac{1x10^9fg}{1g} *\frac{1mL}{1cm^3} \\\\1.2x10^{38}\frac{fg}{cm^3}$

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ehidna [41]

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snow_lady [41]

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Please help! Calculate the percent by mass of water in FeCl2 · 4H20.

Sedaia [141]

Answer:

36.23 %

Explanation:

Let's assume we have 1 mol of FeCl₂ · 4H₂O. In that case we would have:

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Now we can calculate the percent by mass of water:

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Answer:

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Explanation:

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