Answer:
The answer is
<h2>2.64 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass = 611 g
volume = final volume of water - initial volume of water
volume = 256.7 - 25.1 = 231.6 mL
The density of the metal is
We have the final answer as
<h3>2.64 g/mL</h3>Hope this helps you
Answer:
C.
Explanation:
We are given that
Initial concentration,
First half life, minutes
Second half life, minutes
We have to find K.
The given reaction is zero order reaction.
We know that for zero order reaction
Using the formula
Hence, option C is correct.
Answer: A. 5.41
Explanation:
To calculate the moles :
According to stoichiometry :
3 moles of require = 2 moles of
Thus 0.0261 moles of will require=
of
Thus is the limiting reagent as it limits the formation of product and
is the excess reagent.
As 3 moles of give = 3 moles of
Thus 0.0261 moles of give =
of
Mass of
Thus 5.41 g of solid lead will be produced from the given masses of both reactants.