Chemistry, 21.09.2021 19:50 meganwintergirl

2. A certain compound (molar mass = 45.99 g/mol) has a ΔHsubl of 61.1 kJ/mol. How many grams of compound are sublimated by 36.5 kJ of heat? 3. A 165 g sample of a certain liquid compound (53.65 g/mol) at 62.9 °C is cooled to form a solid at 18.1 °C. How much heat in kJ is released? The compound has a melting point of 31.3 °C, ΔHfus = 13.9 kJ/mol, ssolid = 1.87 J/g°C, and sliquid = 2.59 J/g°C.

Answers: 2

Show answers

Another question on Chemistry

Chemistry, 21.06.2019 22:20

Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.

Answers: 1

Answer

Chemistry, 22.06.2019 10:30

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Answers: 1

Answer

Chemistry, 22.06.2019 14:30

Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.

Answers: 3

Answer

Chemistry, 22.06.2019 20:00

Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?

Answers: 2

Answer

You know the right answer?

2. A certain compound (molar mass = 45.99 g/mol) has a ΔHsubl of 61.1 kJ/mol. How many grams of comp...

Questions