Show the neat logical method and work for each problem. Use significant figures

Question

Show the neat logical method and work for each problem. Use significant figures and units in calculation problems The unbalanced equation for the combustion of ethanol (C_2H_5OH) is: C_2H_5OH_(g) + O_2(g) rightarrow CO_2(g) + H_2O(g) a.) How many moles of CO_2 are formed from 0.73 moles of ethanol? b.) How many moles of water are formed when 17.2 moles of O_2 reacts with ethanol? c.) How many moles of O_2 are needed to react with 1.34 mol of ethanol? CO_2(g) + H_2O_(l) rightarrow C_2H_22O_12(aq) + O_2(g) a.) Balance the above equation. b.) How many grams of water are needed to produce 19.3 grams of C_12 H_22 O_12? c.) How many grams of oxygen are produced from 32.0 grams of CO_2?

Explanation / Answer

Balanced equation is

C2H5OH + 3 O2 -----> 2 CO2 + 3 H2O

1 mole 3 mole 2 mole 3 mole

a)

so 0.73 moles of C2H5OH will give 0.73 * 2 /1 moles of CO2 = 1.46 moles of CO2 Answer

b)

17.2 moles of O2 will give 17.2 *3 /3 moles of H2O = 17.2 moles of H2O Answer

c)

1.34 moles of C2H5OH requires 1.34 * 3 /1 moles of O2 = 4.02 moles of O2

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.