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Chemistry: Post your doubts here!
In excess NH3, a complex cation is formed [Ag(NH3)2]+ -
Chemistry: Post your doubts here!
There is actually no need to calculate moles or use gas constant, since both values are the same before and after the change. -
Chemistry: Post your doubts here!
Short answer would be no, it would not exhibit cis-trans. The type of isomerism for 4 different groups would be E-Z isomers (entgegen zusammen). http://www.chemguide.co.uk/basicorg/isomerism/ez.html -
Nope. I'm a tutor for GCE O and A levels chemistry.
Nope. I'm a tutor for GCE O and A levels chemistry.- Metanoia
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Chemistry: Post your doubts here!
Its not about the total number of carbons. Its about the number of carbons within a ring. For that question, if i remember correctly, the number of carbons in the rings are either five or six. -
Chemistry: Post your doubts here!
Look at the density, the denser liquid would be at the bottom. -
Chemistry: Post your doubts here!
An alternative would be to realize that the half equations are in the data booklet Fe2+ --> Fe3+ + e ---(1) MnO4- + 8H+ + 5e --> Mn2+ + 8H2O ---- (2) We simply need to multiply eqn (1) by 5 before adding to eqn (2) -
Chemistry: Post your doubts here!
? what is the part you are having difficulty with? The balance equation or finding out x? -
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Chemistry: Post your doubts here!
The cold dilute MnO4- mildly oxidises the C=C bonds, adding 2 OH groups to each carbon to form a di-ol The OH group subsequently oxidizes to form COOH and ketones respectively for the last box. Reaction between C and D: C has an acid group and D has an alcohol group, create an ester bond... -
Chemistry: Post your doubts here!
Q1. Since the density of the mixture is higher than density of pure N2, it indicates that N2 is mixed with another gas that has a higher Mr than N2 (28). Q2. pV = nRT pV = (mass/Mr)RT ------(1) What is R? When T = 273, n =1, p = 1, V = 22400 R= pV/nT = 22400/273 Sub into eqn (1) and... -
Chemistry: Post your doubts here!
Yes. Cis isomers would be very unlikely in small rings (less than 8 carbons) due to the strain on the bonds. -
Chemistry: Post your doubts here!
I'll add on to the explanation of question 4. ASSUMING that the gas was an ideal gas. P1V1 = P2V2 (1500)(76) = (6000)(V2) V2 = 19 cm^3 This means that if it was an ideal gas, the volume is expected to be 19 cm^3. However, the actual observed volume is 20.5 cm^3. Since it turned out that the... -
Chemistry: Post your doubts here!
If there is a carboxylic acid and ketone group, the carboxylic acid is of a higher rank. The parent (longest) chain must contain carboxylic acid (and not necessary the ketone group). Prefixes are used when there are more than 1 functional groups, I'll use alcohol to explain the idea of the... -
Chemistry: Post your doubts here!
When there are more than 1 functional groups, there is a need to rank the functional groups. http://www.masterorganicchemistry.co...-nomenclature/ -
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Chemistry: Post your doubts here!
Ni/H2 reduces alkenes, aldehydes, ketones and nitriles. But not carboxylic acid. To reduce carboxylic acid, you need to use LiAlH4. -
Chemistry: Post your doubts here!
Each F only needs one more electron, they can't accept a lone pair from the Cl atom. One simple guideline is to explore the possibility of a covalent bond first before considering using dative bonds. -
Chemistry: Post your doubts here!
There are structural isomers due to the C=C bonds. The one drawn in the question is the trans-trans version. The other 3 possible versions are cis-trans, trans-cis and cis-cis.