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

Author Question: An unknown gaseous substance has a density of 1.06 g/L at 31 C and 371 torr. If the substance has ... (Read 181 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
on: Aug 27, 2018
An unknown gaseous substance has a density of 1.06 g/L at 31 C and 371 torr. If the substance has the following percent composition: 88.8 C and 11.2 H, its molecular formula is ________.
 
  A) CH3
  B) C2H3
  C) C4H6
  D) C2H5

Question 2

An unknown gaseous substance has a density of 1.06 g/L at 31 C and 371 torr. Its molecular weight is ________.
 
  A) 27 g/mol
  B) 54 g/mol
  C) 81 g/mol
  D) 108 g/mol


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sailorcrescent

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

B


jessicacav

  • Member
  • Posts: 558
Reply 2 on: Aug 27, 2018
:D TYSM

sarah_brady415

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Bone density test. Bone density test.
Behaviors that are suspicious for substance abuse Behaviors that are suspicious for substance abuse
The spongy bone in the top of the femur changes density and organization during growth. The spongy bone in the top of the femur changes density and organization during growth.
Label used to indicate a class IV controlled substance. Label used to indicate a class IV controlled substance.
0.123 g of a gas occupy a volume of 124 mL at 120. °C and 760. torr. Its molar mass is ... 0.123 g of a gas occupy a volume of 124 mL at 120. °C and 760. torr. Its molar mass is ...
A buffer solution is prepared using 0.5 moles of a weakly basic drug and an unknown quantity of ... A buffer solution is prepared using 0.5 moles of a weakly basic drug and an unknown quantity of ...
Video: Vasectomy

For a complete list of videos, visit our video library