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Anvisha [2.4K]
3 years ago
6

What is the economic importance of phosphorus in Canada or elsewhere in the world?

Chemistry
1 answer:
vladimir1956 [14]3 years ago
6 0

white phosphorus is used in flares and explosives, so may be important in warfare, etc. Red phosphorus is used in matches (side of matches) and in fertilizers which are essential to growing plants. I don't know if that is economically important, but there are many ways that phosphorus benifit the economy. One downside on the economy is that phosphorus is one of the main ingredients in meth, which of course causes trouble for the economy ( law enforcement, medical, etc. )

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What holds a proton together?
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8 0
3 years ago
How many grams of H2O will be produced if 750. grams of Fe are produced?
aleksandr82 [10.1K]

Answer:

\boxed{\small \sf \: Mass \:  of  \: H_2O =322.2 \: grams}

Explanation:

<em>Given:</em>

Mass of ferous (Fe) produced = 750 gram.

<em>To find:</em>

Mass of water produced= ?

<em>Solution:</em>

<em>Molar mass of Fe is 55.84 gram/</em><em>mol</em>

Let's find out the number of moles of ferous produced.

\small \sf Number  \: of  \: moles  =  \frac{Given  \: mass \:  of \:  substance }{Molar \:  mass \:  of \:  substance}

Substituting the given data in above formula.

\small \sf Number  \: of  \: moles  =   \frac{750}{55.84}

\boxed{\small \sf Number  \: of  \: moles \: of \: Fe= 13.43 \: moles}

Now the given reaction is,

Fe_3O_4 + 4H_2  \rightarrow 3Fe + 4H_2O

  • For every 3 mole of production of Fe, 4 mole of waters are produced.
  • let for 13.43 moles of Fe x moles of H2O will be produced.

now calculate the number of moles of H2O

\sf \: \frac{3}{4}  =  \frac{13.43}{x}  \\  \sf x =  \frac{13.43 \times 4}{3}   \\  \sf x = 17.90 \: moles

\small \boxed{\sf number \: of \: moles \: of  \: H_2O= 17.90 \: moles}

mass of one mole of H2O is 18 gram, so we can calculate mass of 17.90 moles.

\small \sf \: Mass \:  of  \: H_2O = 17.90 \times 18 \\    \boxed{\small \sf \: Mass \:  of  \: H_2O =322.2 \: grams}

<em><u>Thanks for joining brainly community!</u></em>

3 0
2 years ago
What is the percent by mass of sulfur in sulfur dioxide?a.32b.33c.50d.67?
-BARSIC- [3]
Molar mass of sulfur dioxide (SO2) is 64.066g/mol
molar mass of sulfur is 32.065 g/mol
thus, (32.065/64.066 )x100=50% 

7 0
3 years ago
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