(a) Interpretation: Empirical formula of benzene needs to be determined. Concept introduction: The simplest positive integer ratio of atoms of the chemical compound is called an empirical formula. From the empirical formula, the actual number of atoms present in the compound cannot be determined.
(a) Interpretation: Empirical formula of benzene needs to be determined. Concept introduction: The simplest positive integer ratio of atoms of the chemical compound is called an empirical formula. From the empirical formula, the actual number of atoms present in the compound cannot be determined.
Solution Summary: The author explains that the simplest positive integer ratio of atoms of the chemical compound is called an empirical formula.
Empirical formula of benzene needs to be determined.
Concept introduction:
The simplest positive integer ratio of atoms of the chemical compound is called an empirical formula. From the empirical formula, the actual number of atoms present in the compound cannot be determined.
Interpretation Introduction
(b)
Interpretation:
Molecular weight and its molecular formula from the mass spectrum of benzene needs to be determined.
Concept introduction:
The chemical symbol is used for constituent elements which are followed by the subscript describing the present number of atoms of each element in the molecule by using the molecular formula.
The value of empirical and molecular formula may be the same or a multiple of the compound empirical formula.
1) Suppose 0.1 kg ice at 0°C (273K) is in 0.5kg water at 20°C (293K). What is the change in entropy of the ice as it melts at 0°?
To produce the original "water gas" mixture, carbon (in a combustible form known as coke) is reacted with steam: 131.4 kJ + H20(g) + C(s) → CO(g) + H2(g) From this information and the equations in the previous problem, calculate the enthalpy for the combustion or carbon to form carbon dioxide.
kindly show me how to solve both parts of the same long problem. Thanks
we were assigned to dilute 900ppm
in to 18ppm by using only 250ml vol
flask. firstly we did calc and convert
900ppm to 0.9 ppm to dilute in 1 liter.
to begin the experiment we took
0,225g of kmno4 and dissolved in to
250 vol flask. then further we took 10
ml sample sol and dissolved in to 100
ml vol flask and put it in to a
spectrometer and got value of 0.145A
.
upon further calc we got v2 as 50ml
. need to find DF, % error (expval and
accptVal), molarity, molality. please
write the whole report. thank you
The format, tables, introduction,
procedure and observation, result,
calculations, discussion and
conclusion
Q5. Predict the organic product(s) for the following transformations. If no reaction will take place
(or the reaction is not synthetically useful), write "N.R.". Determine what type of transition state
is present for each reaction (think Hammond Postulate).
I
Br₂
CH3
F2, light
CH3
Heat
CH3
F₂
Heat
Br2, light
12, light
CH3
Cl2, light
No
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Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY