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

Author Question: A compound is found to be 30.45 N and 69.55 O by mass. If 1.63 g of this compound occupy 389 mL at ... (Read 135 times)

torybrooks

  • Hero Member
  • *****
  • Posts: 500
on: Aug 27, 2018
A compound is found to be 30.45 N and 69.55  O by mass. If 1.63 g of this compound occupy 389 mL at 0.00C and 775 mm Hg, what is the molecular formula of the compound?
 
  A) NO2
  B) N2O
  C) N4O2
  D) N2O5
  E) N2O4

Question 2

How many sodium ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g/mol.
 
  A) 1.52  1027 sodium ions
  B) 4.76  1020 sodium ions
  C) 2.10  1021 sodium ions
  D) 1.05  1021 sodium ions
  E) 9.52  1020 sodium ions


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dinolord

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Aug 27, 2018
Answer to Question 1

E

Answer to Question 2

E


torybrooks

  • Member
  • Posts: 500
Reply 2 on: Aug 27, 2018
Excellent

sarah_brady415

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

« previous next »
 

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
An “Intermediate-Mass” Black Hole An “Intermediate-Mass” Black Hole
Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than
Many different types of labels may be found on packages containing hazardous materials. Clockwise ... Many different types of labels may be found on packages containing hazardous materials. Clockwise ...
Major Types of Hydrogen Bonds Found in Biomolecular Interactions Major Types of Hydrogen Bonds Found in Biomolecular Interactions
Mass spectrometry for identifying an unknown protein isolated from a 2D gel Mass spectrometry for identifying an unknown protein isolated from a 2D gel
Video: Glucose Evaluation Procedure

For a complete list of videos, visit our video library