Organic Chemistry Answers

Calculate the percentage purity of CaCO3 when 50g of marble reacts with an excess of HCl to make 15 g of CO2.

Instant hot packs work by crystallizing sodium acetate (NaCH3COO). The molar enthalpy of crystallization for sodium acetate is -56.7 kJ/mol. How many grams of sodium acetate are needed to warm 125.0 ml of water from 21 degrees C to 35.4 degrees C?

1. Look at the following reaction: N2 O4 (g) 2NO2 (g) + 32.1 kJ What would you have to do to the reaction in order to increase the magnitude of K?

2. If Q < K, which way will the reaction proceed and why?

You are a chemical engineer that is responsible for synthesizing a new drug. You look at a series of potential chemical reactions that will make your drug along with their respective K values. What type of K value would you be looking for and why?

Distinguish between the following pairs of organic comounds including a chemical test.

(i) CH3C≡CCH3 and CH3CH2C≡CCH3

(ii) C6H5COCH3 and C6H5CHO

Give the products of the following conversions

i) CH3CHBrCH2CH3 𝐾𝑂𝐻/𝑎𝑙𝑐𝑜ℎ𝑜𝑙𝑟𝑒𝑓𝑙𝑢𝑥 ...........?

Draw the Structural formula of each of the following compounds

2,4,6-tribromophenol

Draw the Structural formula of the following compounds

2-methylbutanoic acid

Hexa-2-one(2-hexanone)

Draw the Structural formula of each of the following compounds

i. 2-methylbutanoic acid

ii.Hexa-2-one(2-hexanone)

iii. 2,4,6-tribromophenol

Give the systematic name of the following compounds

i. CH3CHFCCl2CH2OH

ii. CH3CH(CH)CH2CHO

iii. C6H5CH2CONH2

iv. CH3 CH(NH2)COOH