Chemistry, 29.05.2021 01:40 Queenbee2304
Calculate the pH of a 0.10 M solution of acidic acid HC2H3O2(aq) at 25 °C. Ka for HC2H3O2 = 1.8×10−5 at 25 °C g
Answers: 2
![Ka = \frac{[CH3COO^{-}] [H^{+}]}{[CH_3COOH]}\\\\](/tpl/images/1354/5896/b6175.png)
![1.8\times 10^{-5} = \frac{x^2}{0.10}\\\\x^2 = 1.8 \times 10^{-6}\\\\x = 1.34 \times 10^{-3}\\\\pH = -\log [H^{+}]](/tpl/images/1354/5896/b9098.png)
![[H^{+}] = x = 1.34 \times 10^{-3}](/tpl/images/1354/5896/38a1b.png)
Another question on Chemistry
Chemistry, 21.06.2019 13:40
Enough of a monoprotic weak acid is dissolved in water to produce a 0.0172 m solution. if the ph of the resulting solution is 2.39 at 20 °c, determine the pka for the acid.
Answers: 1
Chemistry, 22.06.2019 03:50
Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
Chemistry, 22.06.2019 05:20
Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.
Answers: 1
You know the right answer?
Calculate the pH of a 0.10 M solution of acidic acid HC2H3O2(aq) at 25 °C. Ka for HC2H3O2 = 1.8×10−5...
Questions
Mathematics, 06.10.2019 03:30
History, 06.10.2019 03:30
Mathematics, 06.10.2019 03:30
Mathematics, 06.10.2019 03:30
English, 06.10.2019 03:30
History, 06.10.2019 03:30
Geography, 06.10.2019 03:30
English, 06.10.2019 03:30
