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3 years ago

What is the formula mass of hydrated magnesium sulfate?

Chemistry

1 answer:

Masteriza [31]3 years ago

3 0

Answer:

138.39 g/mol

Explanation:

Formula mass is a synonym for molar mass, which is the sum of all the masses of the elements. These can be found on a periodic table.

Because this is hydrated, the formula needs to include H2O.

MgSO4 + H2O

Mg + S + 4O + 2H + O

24.31 + 32.07 + (4*16) + (2*1.008) + 16 = about <u>138.39</u>

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MrRa [10]

Answer:

20.3-17.5=2.8ml 1ml=1cm3 vol= 2.8cm3

Explanation:

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3 years ago

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Llana [10]

Answer:

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4 years ago

How can we prevent rusting of iron??

dimaraw [331]

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3 years ago

In the following reaction, how many grams of silver can be produced from 49.1 g copper?

notsponge [240]

166.4 g Ag grams of silver can be produced from 49.1 g of copper.

A mole is a very important unit of measurement that chemists use. A mole of something means you have 602,214,076,000,000,000,000,000 of that thing, like how having a dozen eggs means you have twelve eggs.

$1 mol Cu + 2 mol AgNO_3$ → $2 mol Ag + 1 mol Cu(NO3)2$

63.55 g Cu —> 2 x 107.688 g Ag

63.55 g Cu gives 215.376 g of Ag

So, 49.1 g Cu —> $\frac{215.376 g X 49.1 g}{63.55 g}$

= 166.4 g Ag

Hence, 166.4 g Ag grams of silver can be produced from 49.1 g of copper.

Learn more about moles here:

brainly.com/question/26416088

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2 years ago

An experiment produced 0.10 g CO2 with a volume of 0.056 L at STP. If the accepted density of CO2 at STP is 1.96 g/L, what is th

Mandarinka [93]

The experimental density of CO2 at STP is 0.10/0.056=1.78 g/L. The percent error equals to (1.96-1.78)/1.96*100%=9.18%. So the answer is 9.18%.

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3 years ago