Answer:
Answer is explained below.
Explanation:
As (+) menthol and (-) menthol are enantiomers whose physical properties are same except optical activity so we can expect they have similar Rf values.
Whereas diastereomers have different physical properties and different Rf values.
For example when the (+) menthol , (-) menthol, isomenthol and neomenthol undergo TLC (thin layer chromatography) the
Rf values of.(+menthol) = .447
Rf (+isomenthol) = .395
Rf (+neomenthol)= .487
Rf (-menthol) = .434
The above data shows that (+) menthol and (-) menthol have almost same Rf values and vary a little i.e 0.447 and 0.437. So we can conclude them as enantiomers
Whereas (+) menthol or (+) neomenthol or (+) isomenthol i.e 0.447 , 0.395 and 0.487 have different Rf values. We can conclude them as diasteromers.
(+) menthol and (-) menthol - enantiomers
(+) menthol and (+) neomenthol- diastereomers
(-) menthol and (+) isomenthol - diastereomers
Tarnish is Ag2S-silver sulfide and the oxidation state of silver is +1
Assuming we have 100 g of sample
30.45/MW of N 14g = 2.175
69.55/MW of O 16g = 4.34
4.34/2.185 = 2
for every 1 mole of N we have 2 moles of O
so the empirical formula would be NO2
without having the molecular weight of the entire molecule the molecular formula can not be determined with the information in your question
Answer:- Molecular formula of the compound is 
.
Solution:- From given information:
C = 46.47%
H = 7.80%
Cl = 45.72%
First of all we find out the empirical formula from given percentages. We divide the given percentages by their respective atomic masses to calculate the moles:
= 3.87
= 7.72
= 1.29
Now, we divide the moles of each by the least one of them. Least one is Cl as it's moles are least as compared to the moles of C and H. So, let's divide the moles of each by 1.29.
= 3
= 6
= 1
So, the empirical formula of the compound is 
.
Empirical formula mass = 3(12.01) + 6(1.01) + 1(35.45)
= 36.03 + 6.06 + 35.45
= 77.54
To calculate the number of formula units we divide molar mass by empirical formula mass.
number of empirical formula units = 
= 2
So, the molecular formula would be two times of empirical formula that is, .
