![subject](/tpl/images/cats/himiya.png)
Chemistry, 26.09.2021 14:00 glowbaby123
8. If you have 100 ml of 10X Buffer A, how could you prepare 450 ml of 1 X buffer A?
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 18:10
Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 14:40
Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products
Answers: 2
You know the right answer?
8. If you have 100 ml of 10X Buffer A, how could you prepare 450 ml of 1 X buffer A?...
Questions
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 09.12.2021 19:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 19:10
![question](/tpl/images/cats/biologiya.png)
Biology, 09.12.2021 19:10
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 19:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 09.12.2021 19:10
![question](/tpl/images/cats/en.png)
English, 09.12.2021 19:10
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 19:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 19:10
![question](/tpl/images/cats/en.png)
English, 09.12.2021 19:10
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 19:10
![question](/tpl/images/cats/istoriya.png)
History, 09.12.2021 19:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 19:10
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 19:10
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mkx.png)
Arts, 09.12.2021 19:10
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 19:10