Chemistry, 18.01.2020 15:31 nails4life324
Calculate the ph of a solution formed by mixing 20.00 ml of 0.30 m hcl with 30.00 ml of 0.15 m hno3? ?
Answers: 3
and 
are strong acids which ionize completely in water. According to stoichiometry, 1 mole of each will produce 1 mole of hydronium cations. Therefore, let's calculate the total number of moles of hydronium and find the final concentration of it keeping in mind the dilution:
![[H_3O^+] = \frac{c_{HCl}V_{HCl} + c_{HNO_3}V_{HNO_3}}{V_{HCl} + V_{HNO_3}}](/tpl/images/0460/9459/33d70.png)
![pH = -\log[H_3O^+] = -\log(\frac{c_{HCl}V_{HCl} + c_{HNO_3}V_{HNO_3}}{V_{HCl} + V_{HNO_3}}) = -\log(\frac{0.30~M\cdot 20.00~mL + 0.15~M\cdot 30.00~mL}{20.00~mL + 30.00~mL}) = 0.68](/tpl/images/0460/9459/5204f.png)
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Calculate the ph of a solution formed by mixing 20.00 ml of 0.30 m hcl with 30.00 ml of 0.15 m hno3?...
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