What is the bond between a posative and a negative ion called
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Concentration of hydrogen ions remaining in the final solution is
In original solution we have 1.450M of HCl
1.450 M means 1.450 moles of HCl in 1 liter of water
Therefore, number of moles of HCl in 500ml of water will be
= moles
= 0.725 moles of HCl
Reaction between HCl and Zn happens when zinc is added -
→
Therefore two moles of HCl is needed for 1 mole of zinc
Thus number of moles of HCl needed to react with 12.7g of Zinc will be
=
= .388 Moles
So moles of HCl left =
= 0.3365 moles
In 1 Mole of HCl there is 1 mole of H because
→
Therefore in 0.3365 mole HCl there will be 0.3365 moles of H
Thus final concentration of H ions in final solution is =
=
= 0.673M
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