Chemistry, 30.08.2020 14:01 jesussanchez1445
What is the pH of a buffer made from 0.130 mol of HCNO (Ka = 3.5 × 10⁻⁴) and 0.410 mol of NaCNO in 2.0 L of solution?
Answers: 1
![pH=pKa+log(\frac{[base]}{[acid]} )](/tpl/images/0734/8563/33848.png)
![[base]=\frac{0.410mol}{2.0L}=0.205M](/tpl/images/0734/8563/eabfc.png)
![[acid]=\frac{0.130mol}{2.0L}=0.065M](/tpl/images/0734/8563/e375b.png)
Another question on Chemistry
Chemistry, 22.06.2019 20:00
Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line
Answers: 1
Chemistry, 23.06.2019 01:30
Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?
Answers: 1
Chemistry, 23.06.2019 03:00
Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, electrical, thermal (heat), and/or sound.
Answers: 3
You know the right answer?
What is the pH of a buffer made from 0.130 mol of HCNO (Ka = 3.5 × 10⁻⁴) and 0.410 mol of NaCNO in 2...
Questions
Mathematics, 12.03.2021 22:20
Mathematics, 12.03.2021 22:20
History, 12.03.2021 22:20
Mathematics, 12.03.2021 22:20
Mathematics, 12.03.2021 22:20
English, 12.03.2021 22:20
Mathematics, 12.03.2021 22:20
Mathematics, 12.03.2021 22:20
Geography, 12.03.2021 22:20
