Other Chemistry Answers

Which of the following is helpful in establishing the purity of a compound

Carry out the necessary calculations in order to administer the required number of tablets to a patient with an order for 60 mg of a drug that is available in 30-mg tablets. How many tablets should you administer?

Multiple Choice
2 tablets
1.5 tablets
1 tablet
0.5 tablet

Have a shampoo formulation that is turning brown after 3 months
has lemon eucalyptus,and lemon in it could that be the problem

calculate maximum amount of product produced and amount of any
unreacted excess reagent, knowing the limiting reagent in a reaction

to prepare a detail on heterogeneous mixture including cholider solution and suspension with special reference to there properties example and uses

what are prostaglandins ? explain their physiological roles in human beings.

A system of idea gas is changed from state A to state B by the following sequence of steps:
Step 1: The system absorbs 5.25 kJ of heat and expands against a constant external pressure of 1.50 atm from 25 L to 125L.
Step 2: The system loses 2.10 kJ of heat to the surroundings at constant volume.
Step 3: The surroundings do 0.75 kJ of work on the system and this energy is lost as heat.
What is the change in Internal Energy, for each step and for the overall change from State A to State B?

4.90g of kclo3on heating shows a weught loss of 0.384g what percentage of the original kclo3 has decomposed

19 What is the effect of a small amount of impurity on the boiling point of an organic compound?
Decreases boiling point
Elevates boiling point
Stagnates boiling point
None of the above
20 Which of these is not a useful physical property used to identify an organic compound?
Density
Odour
Basicity
UV spectrum

16 Which of the following features decreases boiling point?
Polarity
Molecular weight
Branching
None of the above
17 What is the effect of a small amount of impurity on the melting point of an organic compound?
Decreases melting point
Elevates melting point
Stagnates melting point
None of the above
18 You are given a bottle that contains 4.59 cm3 of a metallic solid. The total mass of the bottle is 35.66 g. The empty bottle weighs 14.23 g, what is the density of the solid?
4.67 g/cm3
8.94 g/cm3
3.1 g/cm3
None of the above