Chemistry, 21.01.2020 20:31 tigermath85
Achemist measures the enthalpy change ? h during the following reaction: fe (s) + 2hcl (g) ? fecl2 (s) + h2 (g) =? h? 157.kj use this information to complete the table below. round each of your answers to the nearest /kjmol .
reaction? h
? 2fe(s)+4hcl(> 2fecl2(s)+2h2(g) = __ kj
? 4fecl2(s)+4h2(> 4fe(s)+8hcl(g) = kj
? fecl2(s)+h2(> fe(s)+2hcl(g) = kj
Answers: 2
Chemistry, 22.06.2019 06:10
Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.
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Chemistry, 22.06.2019 18:00
Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
Chemistry, 22.06.2019 18:30
What volume of a 0.0606 m solution of strontium bromide is needed to obtain 0.340 mol of the compound? question 42 options: a)5.61 l b) 3.4 l c) 600 ml d) 1 l e) 178 ml
Answers: 1
Achemist measures the enthalpy change ? h during the following reaction: fe (s) + 2hcl (g) ? fecl2...
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