![subject](/tpl/images/cats/himiya.png)
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 06:30
Which of these natural resources is non-renewable a.corn b.wind c.geothermal d.natural gas
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 13:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
You know the right answer?
Xenon gas was measured to start with a volume of 15.5 KL and 48 psi. If the volume changes to 0.6 KL...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 21:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 21:50
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 21:50
![question](/tpl/images/cats/istoriya.png)
History, 01.05.2021 21:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 21:50
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 21:50
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 01.05.2021 21:50
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 21:50
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 21:50