![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 07:40
22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:00
Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:40
What is the binding energy of a nucleus that has a mass defect of 5.81*10-^29 kg a 5.23*10-^12 j b 3.15* 10^12 j c 1.57*10-3 j d 9.44*10^20 j
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
What is preventing the spiders from eating as much?...
Questions
![question](/tpl/images/cats/geografiya.png)
Geography, 29.11.2020 15:30
![question](/tpl/images/cats/en.png)
English, 29.11.2020 15:30
![question](/tpl/images/cats/fizika.png)
Physics, 29.11.2020 15:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 29.11.2020 15:40
![question](/tpl/images/cats/biologiya.png)
Biology, 29.11.2020 15:40
![question](/tpl/images/cats/mat.png)
Mathematics, 29.11.2020 15:40
![question](/tpl/images/cats/mat.png)
Mathematics, 29.11.2020 15:40
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/nemec.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 29.11.2020 15:40
![question](/tpl/images/cats/en.png)
English, 29.11.2020 15:40
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 29.11.2020 15:40
![question](/tpl/images/cats/mat.png)
Mathematics, 29.11.2020 15:40
![question](/tpl/images/cats/User.png)
SAT, 29.11.2020 15:40
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 29.11.2020 15:50
![question](/tpl/images/cats/en.png)
English, 29.11.2020 15:50