![subject](/tpl/images/cats/himiya.png)
Chemistry, 01.07.2021 23:50 iamabouttofail
Determine the molarity of the sodium ions when 78.0 g Na2S is dissolved in water for a final volume of 1.0 L.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 15:00
The density of a planet is 0.69 g/cm3 (density of water is 1.0 g/cm3). which of the following planets might this be? a. mercury b. venus c. saturn d. mars
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 03:30
In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:30
A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 21:30
If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted
Answers: 3
You know the right answer?
Determine the molarity of the sodium ions when 78.0 g Na2S is dissolved in water for a final volume...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/User.png)
SAT, 02.12.2021 03:20
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 02.12.2021 03:20
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 02.12.2021 03:20
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 02.12.2021 03:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/User.png)
SAT, 02.12.2021 03:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)