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schepotkina [342]
3 years ago
14

What is measured in mercury

Chemistry
2 answers:
vovikov84 [41]3 years ago
6 0
An "inch of mercury" (written as inHg) is used to measure atmospheric pressure.
san4es73 [151]3 years ago
5 0
Well first off, the inch of mercury is a unit of measure for pressure. It mostly used for barometric pressure in weather reports, refrigeration, and aviation in the US.<span />
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Consider the reaction 2 al + Fe2O3 to 2Fe + Al2O3. If 60.0g of Al is reacted with excess Fe2O3, determine the amount (in moles)
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    <em><u>calculation</u></em>

     2 Al  + Fe2O3 → 2Fe  + Al2O3

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    Step 2: use the mole ratio to determine the  moles of Al2O3.

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Step 3:    finds the mass  of  Al2O3  by us of  <u><em>mass= moles x molar mass</em></u><em> </em>formula.

The molar  mass of Al2O3  =  (2x27)  +( 16 x3) = 102  g/mol

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