This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How many litres of oxygen are needed to exactly react with 19.8 g of methane at STP? CH4(g) + 2O2(g) ... (Read 98 times)

pepyto

  • Hero Member
  • *****
  • Posts: 547
on: Nov 18, 2019

Question 1

The mole fraction of oxygen in dry air near sea level is 0.20948. The concentration of oxygen is ________ molecules per litre, assuming an atmospheric pressure of 0.985 bar and a temperature of 29.5 °C.
◦ 3.75 × 1024
◦ 4.94 × 1021
◦ 5.07 × 1022
◦ 6.23
◦ 0.00819

Question 2

How many litres of oxygen are needed to exactly react with 19.8 g of methane at STP?

CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)

◦ 27.8 L
◦ 60.5 L
◦ 13.9 L
◦ 56.0 L
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by pepyto on Nov 18, 2019

jessicaduplan

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 55% of students answer this correctly


pepyto

  • Member
  • Posts: 547
Reply 2 on: Nov 18, 2019
:D TYSM

Missbam101

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Erythrocytes contain large amounts of the oxygen-transporting protein Erythrocytes contain large amounts of the oxygen-transporting protein
Two oxygen molecules in van der Waals contact Two oxygen molecules in van der Waals contact
Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter. Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter.
An Internet connection is usually needed to perform updates although some vehicle manufacturers use ... An Internet connection is usually needed to perform updates although some vehicle manufacturers use ...
Expanded view of Silicon-oxygen tetrahedron Expanded view of Silicon-oxygen tetrahedron
At 34.5°C, oxygen gas expands from 34.5 L to 45.7 L against a constant pressure of 750 mmHg. ... At 34.5°C, oxygen gas expands from 34.5 L to 45.7 L against a constant pressure of 750 mmHg. ...
Video: Factors that increase metabolic rate and heat production

For a complete list of videos, visit our video library