![subject](/tpl/images/cats/himiya.png)
Chemistry, 30.09.2019 16:00 realmofgrads23
Calculate the change in ph when 2.0×10−2mol of naoh is added to 0.50 l of a buffer solution that is 0.15 m in hf and 0.20 m in naf.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 04:50
Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?
Answers: 1
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 06:30
Generally, observed behavior that can be formulated into a statement, sometimes mathematical in nature, is called a(n): a. observation. b. measurement. c. theory. d. natural law. e. experiment.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 15:30
Dona wrote the characteristics of two types of galaxies as shown below: type a: has a large flattened core type b: does not have a regular shape which statement is correct? type a is an irregular galaxy and type b is a lens galaxy. type a is a lens galaxy and type b is an irregular galaxy. type a is a spiral galaxy and type b is an elliptical galaxy. type a is an elliptical galaxy and type b is a spiral galaxy.
Answers: 2
You know the right answer?
Calculate the change in ph when 2.0×10−2mol of naoh is added to 0.50 l of a buffer solution that is...
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 19.10.2019 00:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 19.10.2019 00:30
![question](/tpl/images/cats/fizika.png)
Physics, 19.10.2019 00:30
![question](/tpl/images/cats/mat.png)
Mathematics, 19.10.2019 00:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.10.2019 00:30
![question](/tpl/images/cats/istoriya.png)
History, 19.10.2019 00:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.10.2019 00:30
![question](/tpl/images/cats/biologiya.png)
Biology, 19.10.2019 00:30