A 2.75 kg sample of a substance occupies a volume of 250.0 cm3. Find its density in g/cm3.
2 answers:
Answer:
dsf
Explanation:
It is known that density is the amount of mass present in per liter of a substance.
Mathematically, Density =
It is given that mass is 2.75 kg or 2750 g (as 1 kg = 1000 g) and volume is 250 .
Therefore, calculate the density of substance as follows.
Density =
=
= 11
Thus, we can conclude that density of given substance is 11
.
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1) As can be seen from any 1H NMR chemical shift ppm tables, hydrogens which have δ values from 2ppm to 2.3ppm are hydrogens from carbon which is bonded to a carbonyl group. From this, we can conclude that our hydrogens belong to the type, but from 2 different alkyl groups because of 2 different signals.
2) So, one alkyl group is CH3 and second one can be CH or CH2.
3) If we know that ratio between two types of hydrogens is 3:2, it can be concluded that second alkyl group is CH2.
4) Finally, we don't have any other signals and it indicates that part of the compound which continues on CH2 is exactly the same as the first part.
The ratio remains the same, 3:2 ie 6:4
Answer:
A. Amine
Explanation:
Attached are example of each functional group that is listed as a possible answer.
