![subject](/tpl/images/cats/himiya.png)
Chemistry, 17.03.2020 02:24 chandataylor4215
Quinine in a 1.553-g antimalarial tablet was dissolved in sufficient 0.10 M HCl to give 250 mL of solution. A 5.00-mL aliquot was then diluted to 50.00 mL with the acid. The fluorescence intensity for the diluted sample at 347.5 nm provided a reading of 183 on an arbitrary scale. A standard 1.00x102 ppm quinine solution registered 98 when measured under conditions identical to those for the diluted sample. Calculate the mass in milligrams of quinine in the tablet.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:30
Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o sncl2•4h2o sncl2•6h2o
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 06:00
Which change will decrease the number of effective collisions during a chemical reaction? a. adding a catalyst b. increasing the surface area c. decreasing the temperature d. increasing the reactant concentrations e. increasing the volume of the reactants
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 06:30
Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.
Answers: 1
You know the right answer?
Quinine in a 1.553-g antimalarial tablet was dissolved in sufficient 0.10 M HCl to give 250 mL of so...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 10.03.2021 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 16:30
![question](/tpl/images/cats/mir.png)
World Languages, 10.03.2021 16:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
English, 10.03.2021 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 16:30
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 10.03.2021 16:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
Arts, 10.03.2021 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 16:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 16:30