unreacted salicylic acid
Not likely.
NO
Aspirin is the NSAID that is most likely to cause ulcers.
limit test is a quantitative or semiquantitative test designed to identify and control small quantities of impurity which are likely to be present in the substance.Basically limit test for inorganic compound is carried out so that the amount of inorganic impurity present in the drug or required material do not exceed its prescribed limit.
The presence of an impurity in lauric acid would likely decrease the melting point of the sample due to impurity disrupting the crystal lattice structure, making it easier for the molecules to overcome the intermolecular forces and transition from solid to liquid. The impurity can act as a defect, which requires less energy to break the bonds holding the crystal structure together, resulting in a lower melting point.
Aspirin
Buffered aspirin contains an additional ingredient, usually calcium carbonate or magnesium oxide, that helps to neutralize stomach acid and reduce irritation to the stomach lining. This makes buffered aspirin less likely to cause gastrointestinal side effects such as irritation, ulcers, or bleeding compared to regular aspirin.
Aspirin acts as a blood thinner. Thus making the blood less likely to form clots. Clots are what can cause heart attacks and stroke.
An aspirin tablet is a homogeneous mixture, as it is uniform throughout.
Milk
It means someone was likely carrying a drug they had a prescription for or were carrying a drug like Tylenol or Aspirin.
Most likely a spelling error. There is a drug called ibuprofen. It is an over the counter pain reducer (like aspirin).