anonymous
  • anonymous
How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca(OH)2? Ca(OH)2(s) + 2 HCl(aq) yields CaCl2(aq) + 2 H2O(l) 1.5 L HCl(aq) 8.2 L HCl(aq) 2.1 L HCl(aq) 6.0 L HCl(aq)
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@Nnesha
anonymous
  • anonymous
@e.mccormick
JFraser
  • JFraser
See the molar ratio from the balanced reaction? Telling you every time you use 1 mole of calcium hydroxide, you need \(two\) miles of HCl to react fully with it

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anonymous
  • anonymous
@jfraser so c
JFraser
  • JFraser
No. The problem says you start with 3.5 moles of calcium hydroxide, so how many moles of HCl will fully react with that much? (Twice as much)
JFraser
  • JFraser
The balanced reaction tells us \(ratios\), not absolute amounts
anonymous
  • anonymous
@jfraser so d would be correct?
JFraser
  • JFraser
You're jumping. Stop jumping. If you have to use 3.5 moles of calcium hydroxide, you must also use 7 moles of HCl. But the question is asking about the \(volume\) of HCl solution needed. The \(concentration\) of the HCl is 0.85mol/L
anonymous
  • anonymous
oh so b @jfraser thanks
JFraser
  • JFraser
Each 1L of solution contains only 0.85 moles of HCl \[7mol HCl * \frac{1L HCl}{0.85mol HCl}\]
JFraser
  • JFraser
Ye

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