Problems with stoichiometry?
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I need help on how to set up these two problems A student used 1.34g of silver to produce silver nitrate. The actual yield is 2.01 . Calculate the percentage yield. To prepare the paint pigment chrome yellow PbCrO4 a student started with 5.52 g of Pb(NO3)2. Actual yield I'd 5.096 , calculate the theoretical yield and percentage yield
Answer:
A student used 1.34g of silver to produce silver nitrate. The actual yield is 2.01 . Calculate the percentage...
James at Yahoo! Answers Mark as irrelevant Undo
Other solutions
i have to have a problem for all four types of stoichiometry problems. i'm not good at making up the problems that involve that. the equation we are using is: CH2OCOCH(OCO)CH2OCO + 2NaOH --> CH2OHCH(OH)CH2OH + 3COONa
Answer:
First of all the equation is not balanced properly. You have 2Na on the left and 3Na on the right.
EmilyH at Yahoo! Answers Mark as irrelevant Undo
i am having problems with stoichiometry problems XDXD i need some help on how to figure them out cause i have no idea how to *screams* please please please help me due-26/01/09 ...show more
Answer:
I don't rally understand what you want; but some time ago, I prepared a general answer on the concept...
HI2SL3QNCXLU7BP66YETNYRHVE at Yahoo! Answers Mark as irrelevant Undo
I was wondering if someone could look at my answers for a few stoichiometry problems and tell me if i did them correctly or not. 1)How many moles of Mg are required to react w/ 2.0 moles of HCl acid (Mg + 2HCl -->MgCl_2 + H_2) my answer : 1 mole Mg...
Answer:
1. this is correct. The coefficients in the balanced equation can represent moles of reagents. In your...
yo i have a question at Yahoo! Answers Mark as irrelevant Undo
Okay I am in the 8th grade and I am having trouble on my science (stoichiometry) please please help me I am so lost! 1. 2AgNO3 + BaCl2 ---> 2AgCl + Ba(NO3)2 How many grams of silver chloride are produced from 5.0 grams of silver nitrate reacting...
Answer:
First you need to find the moler mass of each of the elements and make sure if there is 2Ag multiply...
Sierra Hastings at Yahoo! Answers Mark as irrelevant Undo
i'd like to prepare for a chem stoichiometry test but my textbook is really basic. Do you know where i can find tricky questions online? thanks a lot!
Answer:
Any college level textbook - Brown & LeMay's The Central Science has some. Harvard's Logan notes...
dudekabo... at Yahoo! Answers Mark as irrelevant Undo
what is the best way to undertand stoichiometry?on what branch of chemistry should we be good at to start stoichiometric solving ?
Answer:
just learn the formulae......they're pretty easy and the questions in stoichometry are also quite simple...
saiganes... at Yahoo! Answers Mark as irrelevant Undo
Hey there! I have 2 problems that I can't seem to get. Any help would be greatly appreciated! 1. Co2(SO4)3(aq) + 3Ca(OH)2(aq) 2Co(OH)3(s) + 3CaSO4(aq) What volume in mL of 0.2500 M Co2(SO4)3 is required to react completely with (a) 25.00 mL of 0.031...
Answer:
1) a) 25ml (0.0315M) = 0.7875 mmol x (1/3) x (1/0.25M) = 1.05 ml b) 5g x (1mol/74.09g) x (1/3) x (1...
yourdeathmydesire at Yahoo! Answers Mark as irrelevant Undo
I need some help. I don't understand how to work these problems. Copper reacts with silver nitrate through single replacement. a. If 2.25 g of silver are produced from the reaction, how many moles of copper(II) nitrate are also produced? b. How many...
Answer:
For the 1st reaction, you need to find the number of moles of each reactant. You do 2.25g x (1 mol/...
Caitie at Yahoo! Answers Mark as irrelevant Undo
I am really confused on how to solve these type of problems. If someone could help me with step by step instructions and a clear answer so that I can try and do it myself. For example could you show me how to calculate the number of grams of oxygen that...
Answer:
1) write bal. rxn.: 2 KClO3 -------> 2 KCl + 3 O2 2 moles of KClO3 decomposes forming 2 moles of...
chpelhil... at Yahoo! Answers Mark as irrelevant Undo
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