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chem probs 2-9-09 - aq water l 131 grams sulfuric acid...

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According to the following reaction, how many moles of mercury will be formed upon the complete reaction of 21.5 grams of mercury(II) oxide ? mercury(II) oxide ( s ) mercury ( l ) + oxygen ( g ) 9.93E-2 moles mercury Feedback: ....... 2 HgO ( s ) 2 Hg ( l ) + O 2 ( g ) GIVEN: ... 21.5 g HgO ....... WANTED: ... mol Hg PER: ............. 1 mol HgO / 216.6 g HgO ......... 2 mol Hg / 2 mol HgO PATH: .... g HgO ...... ...... mol HgO ...... ...... mol Hg 21.5 g HgO ... ... 1 mol HgO ... ... 2 mol Hg ... = ... 9.93E-2 mol Hg 216.6 g HgO 2 mol HgO
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According to the following reaction, how many grams of sulfuric acid are necessary to form 0.445 moles aluminum sulfate ? aluminum oxide ( s ) + sulfuric acid ( aq ) aluminum sulfate
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Unformatted text preview: ( aq ) + water ( l ) 131 grams sulfuric acid Feedback: ....... Al 2 O 3 ( s ) + 3 H 2 SO 4 ( aq ) Al 2 (SO 4 ) 3 ( aq ) + 3 H 2 O ( l ) GIVEN: ... 0.445 mol Al 2 (SO 4 ) 3 ....... WANTED: ... g H 2 SO 4 PER: .................. 3 mol H 2 SO 4 / 1 mol Al 2 (SO 4 ) 3 .......... 98.09 g H 2 SO 4 / mol H 2 SO 4 PATH: .... mol Al 2 (SO 4 ) 3 ...... ...... mol H 2 SO 4 ...... ...... g H 2 SO 4 0.445 mol Al 2 (SO 4 ) 3 ... .. . 3 mol H 2 SO 4 ... ... 98.09 g H 2 SO 4 ... = ... 131 g H 2 SO 4 1 mol Al 2 (SO 4 ) 3 1 mol H 2 SO 4...
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