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What is the % Yield of the reaction if a student reacted 2.00 g of salicylic acid with excess acetyl chloride and after extraction and recrystallization the mass of aspirin was 1.45 g?
Using A flow diagram, show the separation of a mixture containing p-bromoacetanilide, N-cyclopentyl-N-methyl-N-propylamine (N means the group is attached to the nitrogen of
An open container holds 0.550 kg of ice at - 15.0 degree celsius. The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 800 J/m
When the unknown was treated with 3M (NH4)2CO3 solution a white precipitate formed. Because the acetic acid bottle was empty , the student used 6M HCl to dissolve the precip
An unidentified metal crystallizes in a body-centred cubic lattice with an edge length of 429 pm. The density of the metal is found to be 0.967 g/cm 3 . What is the identity
Calculate the weight of iron (II) sulfate heptahydrate which is crystallized from the 80 g solution of iron (II) sulfate saturated at 50 degrees C by cooling it down to 10 d
The standard free energy of activation of one reaction A is 95.00 kj mol-1 (22.71 kcal mol-1). The standard free energy of activation of another reaction B is 77.40 kj mol-1
Distillation on a mixture of benzene and toluene is performed. As the in the initial distillate is being collected, you observe the boiling point of the mixture to be 89.5 C
Question- You add an excess of solid MX into 250 g of water. You measure the freezing point of the solution and find it to be -0.028°C. Assuming the solution has a density o
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