Welcome, Guest: Register On Nairaland / LOGIN! / Trending / Recent / New
Stats: 3,194,412 members, 7,954,639 topics. Date: Saturday, 21 September 2024 at 03:49 AM

Urgent Help Needed!!! Chemists Only. - Education - Nairaland

Nairaland Forum / Nairaland / General / Education / Urgent Help Needed!!! Chemists Only. (410 Views)

Please Great Chemists and Chemistry Genius Help / Urgent Help Needed. I'm Been Victimised By A Randy Lecturer / Organic Chemists In The House, Please Help Attend To This Question (2) (3) (4)

(1) (Reply) (Go Down)

Urgent Help Needed!!! Chemists Only. by mawaki: 7:24pm On Apr 02, 2019
Chemists in the house please help me solve this question. How many H atoms are there in 2.0158g of H atoms? It is very urgent please. Thanks.
Re: Urgent Help Needed!!! Chemists Only. by WinningEleven(m): 7:26pm On Apr 02, 2019
2.0158 x 6.02 x 10^26


That's your answer
Re: Urgent Help Needed!!! Chemists Only. by mawaki: 7:28pm On Apr 02, 2019
WinningEleven:
2.0158 x 6.02 x 10^26


That's your answer
Thanks but I think the Avogadro's number should be 6.022×10^23.I appreciate.
Re: Urgent Help Needed!!! Chemists Only. by WinningEleven(m): 7:31pm On Apr 02, 2019
mawaki:
Thanks
No qualms
Re: Urgent Help Needed!!! Chemists Only. by WinningEleven(m): 8:07pm On Apr 02, 2019
mawaki:
Thanks but I think the Avogadro's number should be 6.022×10^23.I appreciate.
Yeah. I forgot.
Re: Urgent Help Needed!!! Chemists Only. by Xlyad(m): 2:12am On Apr 03, 2019
Amount=Mass ÷molar mass=2.0158÷1.01=2.0158
No of atoms=amount × Avogadro constant=2.0158×6.02×10^23=1.2×10^24 atoms
Re: Urgent Help Needed!!! Chemists Only. by mawaki: 11:26am On Apr 03, 2019
Xlyad:
Amount=Mass ÷molar mass=2.0158÷1.01=2.0158
No of atoms=amount × Avogadro constant=2.0158×6.02×10^23=1.2×10^24 atoms
Thankyou.Let's say we have 3.8 moles of ribose, C5 H10 O5. What is the mass in grams of the oxygen atom in part? And also what is the Avogadro's number of 1000g sugar molecule? WinningEleven u can also come in.
Re: Urgent Help Needed!!! Chemists Only. by WinningEleven(m): 8:16pm On Apr 03, 2019
mawaki:
Thankyou.Let's say we have 3.8 moles of ribose, C5 H10 O5. What is the mass in grams of the oxygen atom in part? And also what is the Avogadro's number of 1000g sugar molecule? WinningEleven u can also come in.
Mass in grams of oxygen in part is 303.81 grams in 3.8 moles.

Avogadro's number is 4.013 x 10^24
Re: Urgent Help Needed!!! Chemists Only. by mawaki: 10:09pm On Apr 03, 2019
WinningEleven:
Mass in grams of oxygen in part is 303.81 grams in 3.8 moles.
Avogadro's number is 4.013 x 10^24
thankyou very much
Re: Urgent Help Needed!!! Chemists Only. by WinningEleven(m): 10:13pm On Apr 03, 2019
mawaki:
thankyou very much
Yeah

(1) (Reply)

Today Is Worker's Day, Easy Shape For Everyone (mr Shape) / Utme Results: Jamb Server Or Database Did Not Crash Utme Result / University Of Ilorin Postgraduate Admisson Form For 2019/2020 Session

(Go Up)

Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health
religion celebs tv-movies music-radio literature webmasters programming techmarket

Links: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

Nairaland - Copyright © 2005 - 2024 Oluwaseun Osewa. All rights reserved. See How To Advertise. 10
Disclaimer: Every Nairaland member is solely responsible for anything that he/she posts or uploads on Nairaland.