A community for students.
Here's the question you clicked on:
 0 viewing
 2 years ago
a chemist runs the balanced chemical reaction shown below by mixing 6.18g o Ca3P2 with 9.49g of H2O, how much of PH3 will be formed asuming 100% yield?
 2 years ago
a chemist runs the balanced chemical reaction shown below by mixing 6.18g o Ca3P2 with 9.49g of H2O, how much of PH3 will be formed asuming 100% yield?

This Question is Closed

Jusaquikie
 2 years ago
Best ResponseYou've already chosen the best response.0\[Ca _{3}P _{2}(s)+6H _{2}O(l)\rightarrow 3 Ca(OH)_{s}(s)+2 PH _{3}(g)\]

Australopithecus
 2 years ago
Best ResponseYou've already chosen the best response.1http://openstudy.com/study#/updates/50c27afae4b066f22e104a93 I explain limiting reagent

Australopithecus
 2 years ago
Best ResponseYou've already chosen the best response.1If there is a 100% yield you would just be determining the theoretical yield, scroll down to the bottom post of that question

Jusaquikie
 2 years ago
Best ResponseYou've already chosen the best response.0i took the grams of Ca3P2/MM and H20 and got the limiting agent as the CaP2 and that is a 1:1 ratio with the 2PH3

Jusaquikie
 2 years ago
Best ResponseYou've already chosen the best response.0once i figure out the ratio is 1:1 then i take the moles of Ca3P2 then multiply by the MM of PH3 to get the grams right?

Australopithecus
 2 years ago
Best ResponseYou've already chosen the best response.1The ratio between Ca3P2 and PH3 isn't 1:1

Jusaquikie
 2 years ago
Best ResponseYou've already chosen the best response.0i thought i compare the P? P2 in the first to 2P in the second?

Australopithecus
 2 years ago
Best ResponseYou've already chosen the best response.1for every 1 Ca3P2 you produce 2 PH3

Australopithecus
 2 years ago
Best ResponseYou've already chosen the best response.1Show me the moles of Ca3P2 and H2O

Jusaquikie
 2 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 6.18 }{ 182.18 }=.033922\] \[\frac{ 9.49 }{ 18 }=.52722\] \[\frac{ .52722 }{ .033922 }=15.542\] 15>6 so Ca3P2 is the limiting reactant right?

Australopithecus
 2 years ago
Best ResponseYou've already chosen the best response.1The way I do it is usually convert moles of reagent to product then see which gives me the least product (0.52722/6)2 = (0.033922/1)2 =

Australopithecus
 2 years ago
Best ResponseYou've already chosen the best response.1doing it this way also gives you the moles of product you have so its not like it is a huge hassle

Australopithecus
 2 years ago
Best ResponseYou've already chosen the best response.1you produce 2 PH3

Jusaquikie
 2 years ago
Best ResponseYou've already chosen the best response.0ok so i should have (.03392)*2 moles of PH3

Jusaquikie
 2 years ago
Best ResponseYou've already chosen the best response.0then i multiply that by the MM of PH3 and i get the right answer. Thank you very much for your time it's clearer now.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.