Element Z has a mass of 430g. Scientists determined it to have a ½ life of 5 years. How many grams of element Z will remain afte
r 15 years?
1 answer:
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Explanation:
More is the mass of an alkane molecule more will be its boiling point. This means that forces of attraction will be more when mass is more as more heat is required to break the bonds within atoms. Hence, boiling point is more.
Therefore, in the given molecules mass of is 16.04 g/mol, mass of
is 44 g/mol, and mass of
is 30 g/mol.
Thus, we can see that has the highest mass and
has least mass.
Hence, increasing strength of intermolecular forces of given compounds is as follows.
12 times breathe give 240 ml of pure . Each breathe gives 20 ml of
.
Let us consider, volume of air per breathe= x ml.
Pure from inhaled air=
ml and Pure
from exhaled air=
ml.
Pure from inhaled and exhaled air= 20 ml
So, +
= 20
Therefore, x = 55.5 ml
So, volume of air per breath= 55.5 ml.