How many MOLECULES are in 50.0 grams of lithium phosphate?
1 answer:
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Answer: The number of moles of produced are, 3.60 moles.
Explanation :
First we have to calculate the limiting and excess reagent.
The balanced chemical equation is:
From the balanced reaction we conclude that
As, 1 mole of react with 2 mole of
So, 3.60 moles of react with
moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and
is a limiting reagent and it limits the formation of product.
Now we have to calculate the moles of
From the reaction, we conclude that
As, 1 mole of react to give 1 mole of
So, 3.60 mole of react to give 3.60 mole of
Therefore, the number of moles of produced are, 3.60 moles.
Answer:
The correct answer to the following question will be "0.0013%".
Explanation:
The given values are:
Weight of an empty dish = 1.0041 ± 0.0002 g
Weight of dish + sodium chloride (NaCl) = 3.2933 ± 0.0002 g
Weight of NaCl = 2.2892 ± 0.0002 g
Now,
Volume of the solution = 500.00 ± 0.05 ± 0.0002
= 500.00 ± 0.0502 ml
So,
Molarity =
On putting the values in the above formula, we get
=
= ( ±
) × (
±
)
= ( ±
)
Now,
Absolute error =
= %