Chemistry, 01.06.2021 09:00 daphnevlogs11
If 6.75 g of NaOH are dissolved in 50.00 g of water and the temperature increases from 20.5°C to 47.8 °C.
a. Is this an example of an endothermic or exothermic reaction?
b. What is the q for the reaction? (Remember since the NaOH dissolves in water add the masses to get the m)
c. How many moles of NaOH are dissolved?
d. What is the ΔH for the reaction?
Answers: 2
Chemistry, 22.06.2019 22:30
Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?
Answers: 3
Chemistry, 23.06.2019 02:00
The bohr model of the atom explained why emission spectra are discrete. it could also be used to explain the photoelectric effect. which is a correct explanation of the photoelectric effect according to the model?
Answers: 3
Chemistry, 23.06.2019 02:30
When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule
Answers: 1
If 6.75 g of NaOH are dissolved in 50.00 g of water and the temperature increases from 20.5°C to 47....
Chemistry, 07.07.2020 14:01
Mathematics, 07.07.2020 14:01
Mathematics, 07.07.2020 14:01
History, 07.07.2020 14:01
Mathematics, 07.07.2020 14:01
Mathematics, 07.07.2020 14:01
Mathematics, 07.07.2020 14:01
Mathematics, 07.07.2020 14:01