If 180 g glucose (M=180 g/mol) is dissolved in 1 kg water. The magnitude of freezing point depression of this solution is(Kf=1.86 K•kg•mol-1)
A. 0.512k
B. 1.86k
C. 1.024k
D. 3.72 K
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Amino acid chains built by the ribosome in the RER then move to
A. Golgi apparatus
B. lysosome
C. cytoplasm
D. mitochondria
Traditions Clothing Store is having a sale. Shirts that were regularly priced at $20 are on sale for $17.what is the percentage of decrease in the price of the shirts? () A. 3% B 15% C 18% D 85%
A. 15%
B. 18%
C. 85%
18% , and the true value is 80.13%,could you find the absolute error of measurable result? ( )
A. 0.05
B. -0.05
C. 0.05%
D. -0.05%
The electron configuration of element 25 is [] 3d54s2, then it is in () period of periodic table.
A. 2
B. 3
C. 4
D. 5