Answer:
1.7g
Explanation:
use the formula for molarity is equal to moles/ volume then make moles subject of the formula then calculate. Later use the formula mass is equal to moles times molecular mass
Answer:
I'm going to have to go with double displacement. Sue me if I'm wrong.
Explanation:
Synthesis? No. There would have to be one product, not two.
Decomposition? No. There would have to be one reactant, not two.
Single displacement? No. There are two elements/compounds that are switching places.
Double displacement? Highly likely. From the reactants' side to the products' side, nitrate and iodine switch places.
Neutralization? Uh, I don't think so. I can't remember why, though.
Combustion? No. O₂ would have to be one of the reactants.
<em>Lead nitrate + potassium iodide(?) ==> lead iodide(?) + potassium nitrate</em>
Answer:
2 moles
Explanation:
Given data:
Moles of water produced =?
Moles of propane = 0.5 mol
Solution:
Chemical equation:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
Now we will compare the moles of propane and C₃H₈.
C₃H₈ : H₂O
1 : 4
0.5 : 4/1×0.5 = 2 mol
Thus 2 mole of water are produced from 0.5 moles of propane.
Answer: 100 %
%Abundance = part / total *100
%Abundance_1 = parts_1 / total * 100
%Abundance_2 = parts_2 / total * 100
%Abundance_3 = parts_3 / total * 100
%Abundace_1 + %Abundace_2+%Abundace_3 = parts_1/total *100 + parts_2/total*100 + parts_3/total*100
Factor the right side:
%Abundace_1 + %Abundace_2+%Abundace_3 = [parts_1+parts_2+part2_3]/total *100
Given the sum of the parts = total
%Abundace_1 + %Abundace_2+%Abundace_3 = [total]/total *100 = 100
So, the sum of the individual % of abundaces is 100 %.
Explanation:
no. of molea of Ca(NO3)2 = given mass/molar mass
no. of moles= 92/ 164 = 0.56 mol
formula=
Molarity = moles of solute /solution in litres
Molarity = 0.56/ 0.4
=1.4 M
hope it helped!