What is Percent yield: Definition and 15 Discussions
In chemistry, yield, also referred to as reaction yield, is a measure of the quantity of moles of a product formed in relation to the reactant consumed, obtained in a chemical reaction, usually expressed as a percentage. Yield is one of the primary factors that scientists must consider in organic and inorganic chemical synthesis processes. In chemical reaction engineering, "yield", "conversion" and "selectivity" are terms used to describe ratios of how much of a reactant was consumed (conversion), how much desired product was formed (yield) in relation to the undesired product (selectivity), represented as X, Y, and S.
2 mol Reactant A (aq) + 3 mol Reactant B (aq) = 6 mol Product A (aq) + 1 mol Product B (s)
You have 0.00075 L of a 0.0514M solution of Reactant A. In the lab, you combine it with 0.042 L of 0.0753M of Reactant B. You get a solid product and an aqueous product (a...
Here is the question: If 75.0 g of potassium alum is obtained from 5.00 g of aluminum, what is the percent yield?
This is what I've done so far, but I'm not sure if it is fully correct:
5.00g Al x (1/26.98156) x (1/1) x 258.207 = 47.84882537g potassium alum
Wouldn't this then be the...
A percent yield lab says to add 5.00 g of CuCl2•2H2O(s) to 50 mL of dissolved water. Then, add 1.0 g of steel wool (100% iron) to the beaker.
I am trying to find out how many moles of CuCl2 react here. I am confused about the dihydrate.
The reaction given...
In one experiment, 22.9841 grams of 75.25% pure Pb(NO3)2 (pure Pb(NO3)2 has a molar mass of 331.2 grams) was mixed with 51.2354 grams of 81.21% pure CsI (pure CsI has a molar mass of 259.80992 grams):
2CsI(aq) + Pb(NO3)2(aq) → 2CsNO3(aq) + PbI2(s)
After the reaction...
Find the percent yield of alum
In an experiment to synthesize alum I started with 0.766g of aluminum and made 8.246g of alum
2Al + 6H20 + 2KOH ---> 2KAl(OH)4 + 3H2
The Attempt at a Solution
First I find the LR. Which in this experiment is...
% yield questions (URGENT)
We have 3 equations:
1.64 g of an impure NaNO3-containing substance is reacted with Devarda's alloy. The amount of NH3 got from this reaction is reacted with 25cm3 1.00 moldm-3 H2SO4. The H2SO4 left over is reacted with 16.2 cm3 2.00 moldm-3 NaOH...
% yield ester
I'm having a problem with my chemistry lab report. the question is: What would the % yield of ester be if the reaction were simply allowed to equilibrate (i.e. no products are
I think the the yield is going to smaller but i don't know why.
Approximately 12 million kilograms of phosphoric acid (H3PO4) are produced annually for fertilizers, detergents, and agents for water treatment. Phosphoric acid can be prepared by heating the mineral fluoroapatite (Ca5(PO4)3F) with sulfuric acid in the presence of water.
Ca5(PO4)3F + 5H2SO4 +...
If the reaction of 2.5 g of Al with 2.5 g of O2 produced 3.5 g of Al2O3, what is the percent yield of Al2)3? Be sure to write and balance equation.
Percent Yield = (actual yield / theoretical yield ) x 100
The Attempt at a Solution
4Al + 302...
Hi, I have a few questions that I am struggling with. Any help would be greatly appreciated.
Calculate the molar mass of calcium chloride dihydrate, CaCl2 • 2H2O.
Please use the Periodic Table values rounded to the hundredths place for your calculation and round your answer to...
Is calculating the percent yield in moles different than calculating the percent yield in mass?
I know that to calculate the percent yield in mass, you divide the actual over the theoretical and multiply by 100.
There happens to be a side note in my homework saying that percent yiled can...
For a science lab, I am asked to find the following:
What factor(s) affect percent yield in a reaction which produces calcium carbonate?
We are given a selection of chemicals to use to get the CaCl_2 but I have chosen the following:
CaCl_2 + Na_2CO_3 --> CaCO_3 + 2NaCl...