2. A substance that is solid, has a shiny orange color, conducts electricity well, and melts
1 answer:
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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.
Answer : The mole fraction of NaCl in a mixture is, 0.360
Explanation : Given,
Moles of = 7.21 mole
Moles of = 9.37 mole
Moles of = 3.42 mole
Now we have to calculate the mole fraction of .
Now put all the given values in this formula, we get:
Therefore, the mole fraction of NaCl in a mixture is, 0.360