Chemistry, 05.06.2020 00:01 brittsterrr
PLEASE HELP, CHEM EXPERTS WYA
When 0.113 g of Zn(s) is combined with enough HCl to make 52.3 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 21.8 oC to 24.5oC.
Find ΔH for this reaction as written, i. e., DH for 1 mol Zn. (density of soln = 1.00 g/mL and specific heat = 4.18 J/(goC))
ADDITIONAL INFO:
Zinc metal reacts with hydrochloric acid: Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(g)
Answers: 3
Chemistry, 22.06.2019 11:00
The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.
Answers: 2
Chemistry, 22.06.2019 12:00
Which statement best explains the relationship between an area is geography and the temperature of its surface water
Answers: 1
Chemistry, 22.06.2019 14:50
Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape
Answers: 1
PLEASE HELP, CHEM EXPERTS WYA
When 0.113 g of Zn(s) is combined with enough HCl to make 52.3 mL of...
Mathematics, 20.10.2020 18:01
History, 20.10.2020 18:01
Physics, 20.10.2020 18:01
Biology, 20.10.2020 18:01
Mathematics, 20.10.2020 18:01
English, 20.10.2020 18:01
Mathematics, 20.10.2020 18:01
Health, 20.10.2020 18:01
Mathematics, 20.10.2020 18:01
Biology, 20.10.2020 18:01