Macs QUESTIONS
Q1- Assuming that the synthesis of compound A proceeds in 89% yield,
and the subsequent reaction to give compound B is quantitative,
calculate the amounts of all reagents necessary to make 10 g of 1,4-
dihydropyridine A following the procedure described in this
experiment.
Hantzch synthesis

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Which scientists contributed to the determination of how cfcs in clouds in the upper atmosphere could destroy ozone molecules