![subject](/tpl/images/cats/himiya.png)
Chemistry, 19.02.2020 00:24 kadence428
Formic acid, HCOOH, is a weak acid (pKa=3.75) . It is found in the venom of ant and bee stings and is also used in industry. For clarity, water molecules are omitted. Select the best molecular‑level representation of an aqueous solution of formic acid with a pH of 3.75. A. Green. B. Yellow. C. Blue.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:00
Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 20:20
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 00:00
How is the way a mixture is combined different from how a compound is combined?
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 00:00
In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above
Answers: 3
You know the right answer?
Formic acid, HCOOH, is a weak acid (pKa=3.75) . It is found in the venom of ant and bee stings and i...
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 19.11.2019 06:31
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 19.11.2019 06:31
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 19.11.2019 06:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.11.2019 06:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)