This topic contains a solution. Click here to go to the answer

Author Question: How many grams of H3PO4 are in 415 mL of a 4.00 M solution of H3PO4? What will be an ideal ... (Read 74 times)

Alainaaa8

  • Hero Member
  • *****
  • Posts: 576
How many grams of H3PO4 are in 415 mL of a 4.00 M solution of H3PO4?
 
  What will be an ideal response?

Question 2

A sample of He gas (2.0 mmol) effused through a pinhole in 53 s. The same amount of an unknown gas, under the same conditions, effused through the pinhole in 248 s. The molecular mass of the unknown gas is ________ g/mol.
 
  A) 0.19
  B) 5.5
  C) 88
  D) 19
  E) 350



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultana.d

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

163

Answer to Question 2

C




Alainaaa8

  • Member
  • Posts: 576
Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review


jackie

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

For a complete list of videos, visit our video library