![subject](/tpl/images/cats/himiya.png)
Chemistry, 06.05.2020 02:13 TheCampingStone
You perform an acid base titration to standardize a phosphoric acid solution by placing 50 ml of sulfuric acid in a flask with a couple drops of phenolphthalein
![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 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, 23.06.2019 00:30
Titration reveals that 11.6 ml of 3.0m sulfuric acid are required to neutralize the sodium hydroxide in 25.00ml of naoh solution. what is the molarity of the naoh solution?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 10:30
Using the periodic table, complete the following. element: hydrogen symbol: hâ‚‚ molecular weight: g mass of one mole: g/mol
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 15:20
How many stereoisomers will be formed from the addition of phenyllithium to this molecule?
Answers: 1
You know the right answer?
You perform an acid base titration to standardize a phosphoric acid solution by placing 50 ml of sul...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mkx.png)
Arts, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/istoriya.png)
History, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/biologiya.png)
Biology, 08.12.2020 01:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mkx.png)
Arts, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10
![question](/tpl/images/cats/mat.png)
Mathematics, 08.12.2020 01:10