December 28, 2024, 12:11:01 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)  (Read 11626 times)

0 Members and 1 Guest are viewing this topic.

Offline BrooklynsMVP

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« on: April 05, 2009, 07:59:47 PM »
1.) what is the mass in grams of 4.25 mol of (NH4) 2CO3?

2.) How many grams of oxygen are presented in 0.50 mol of ozone, O3?

3.)How many grams of oxygen are presented in 88.0 g of CO2?
Logged

Offline macman104

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1644
  • Mole Snacks: +168/-26
  • Gender: Male
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #1 on: April 05, 2009, 08:09:40 PM »
Do you know the relationship between moles and grams?
Logged

Offline BrooklynsMVP

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #2 on: April 05, 2009, 08:13:09 PM »
YEA A LITTLE ALL I NEED IS THE ANSWERS FOR THESE QUES, THATS ALL.
Logged

Offline macman104

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1644
  • Mole Snacks: +168/-26
  • Gender: Male
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #3 on: April 05, 2009, 08:14:19 PM »
We don't just give out answers.  You need to show some attempts, we help guide you to the answer.
Logged

Offline BrooklynsMVP

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #4 on: April 05, 2009, 08:18:51 PM »
LOL.. WOW SO PLEASE EXPLAIN ME HOW DO I GET THE ANSWER.
Logged

Offline macman104

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1644
  • Mole Snacks: +168/-26
  • Gender: Male
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #5 on: April 05, 2009, 08:27:59 PM »
For #1, what is the molar mass of (NH4)2CO3?
Logged

Offline BrooklynsMVP

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #6 on: April 05, 2009, 09:12:18 PM »
IT IS 96.0861
Logged

Offline macman104

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1644
  • Mole Snacks: +168/-26
  • Gender: Male
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #7 on: April 05, 2009, 09:21:49 PM »
If I have 5 marbles in a bucket, how many marbles do I have in 4.25 buckets?
If there are 96.0861 grams in a mole, how many grams do you have in 4.25 moles?
Logged

Offline BrooklynsMVP

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #8 on: April 05, 2009, 09:28:26 PM »
i multiplied 96 by 4.25 and i got 408 is that correct?
Logged

Offline macman104

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1644
  • Mole Snacks: +168/-26
  • Gender: Male
Re: 3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)
« Reply #9 on: April 05, 2009, 09:47:02 PM »
Yup!  But I would possibly include 96.09, or 96.086, and make your answer more accurate.

So, now #2:

How many moles of oxygen are there are in 1 mole of O3?
How many moles of oxygen are there in 0.5 moles of O3?

Now, solve the same way, use that answer and the molar mass of oxygen to find the mass.
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links