The synthesis of a certain drug requires 3 steps. The percent yield for the steps are 95.2%, 91.4% and 93.8% respectively. What is the overall percent yield?
A) 81.6%
B) 87.0%
C) 89.3%
D) 91.4%
A
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Jumbo drops from a high pole into water far below. When he is half-way down
A. his kinetic and potential energies are equal. B. he has gained an amount of kinetic energy equal to half his initial potential energy. C. his potential energy is halved. D. all of the above
The English spoken in Minnesota and the English spoken in Australia can best be characterized as two different
A) dialects. B) language families. C) language groups. D) languages. E) language branches.
It takes 6 s for a stone to fall to the bottom of a mine shaft. How deep is the shaft?
A) about 60 m B) about 120 m C) about 180 m D) more than 200 m
The bed load is the dominant portion of the total load for most rivers
Indicate whether the statement is true or false