December 22, 2024, 09:56:08 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: solutions  (Read 3428 times)

0 Members and 1 Guest are viewing this topic.

tanya

  • Guest
solutions
« on: February 19, 2006, 04:34:24 PM »
how can I find out how many grams of BaCl2 are needed to make 100mL of a 1.5M solution?
Logged

Offline Donaldson Tan

  • Editor, New Asia Republic
  • Retired Staff
  • Sr. Member
  • *
  • Posts: 3177
  • Mole Snacks: +261/-13
  • Gender: Male
    • New Asia Republic
Re:solutions
« Reply #1 on: February 19, 2006, 04:57:20 PM »
how many moles of BaCl2 are there in 100ml of 1.5M solution

1M = 1 mole/dm3 = 1 mole/Litre
Logged
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006

Offline madscientist

  • Full Member
  • ****
  • Posts: 225
  • Mole Snacks: +14/-7
  • University of New England Australia
Re:solutions
« Reply #2 on: February 20, 2006, 09:23:38 AM »
Once you have calculated haw many moles of BaCl2 there are convert to mass:

mass <=====> moles conversion

moles to mass:

Moles * (molar mass) = grams

mass to moles:

grams * (1/molar mass)= moles
Logged
The only stupid question is a question not asked.
Pages: [1]   Go Up
« previous next »
Sponsored Links