A ALEKS-Jordan Sumpte ? h 03.13 Phillips. Ellie.pdf \\ D 03.13 5cott, Mary Eliza

Question

A ALEKS-Jordan Sumpte ? h 03.13 Phillips. Ellie.pdf D 03.13 5cott, Mary Elizab, x ??Downioade Jordan Solving for a reactant using a chemical equation Wine goes bad soon after opening because the ethanol (CHCHOH in it reacts with oxygen gas (O2) from the air to form water (H,O) and acetic acid CH,COOH), the main ingredient of vinegar What mass of oxygen gas is consumed by the reaction of 3.8 g of ethanol? Round your answer to 2 slgnlficant diglts. dlo Ar Check 3:21 PM O Type here to search ????4x 3/28/2018

Explanation / Answer

The balanced equation is

CH3CH2OH + O2 -------> CH3COOH + H2O

number of moles of ethanol = 3.8g / 46.07 g/mol = 0.0825 mole

from the balanced equation we can say that

1 mole of ethanol requires 1 mole of O2 so

0.0825 mole of ethanol will require 0.0825 mole of O2

mass of 1 mole of O2 = 32.0 g

so the mass of 0.0825 mole of O2 = 2.64 g

Therefore, the mass of O2 consumed = 2.6 g

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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