Standard Notation 6.5 x 104 3.5764 x 102 0.00000001 543197 6. Complete the follo

Question

Standard Notation 6.5 x 104 3.5764 x 102 0.00000001 543197 6. Complete the following table in scientific notation (8.7x109) x (6.Ix103) (4.9x 10 2) X (3.6x10%)- (Ix10) x (Ix10) 0.0001 5.8x103 4.16x 10.4÷ 1.2x 10.2 = 8.9x10 2.3x102 A common laboratory technique for measuring protein concentration is known as the Bicinchoninic acid (BCA) assay. Below is the dilution scheme of the protein standards in serial dilution. Complete the table 7. Protein Concentration Absorbance at (mg/mL) Volume of IDF TDF Volume 562nm transferred diluent (ul) (UL) 1.174 2

Explanation / Answer

Ans. #5. 6.5 x 10-4 = 0.00065

            3.5764 x 102 = 357.64

            1.0 x 10-8 = 0.00000001

            5.43197 x 105 = 543197   

Ans. #6. A. (8.7 x 109) x (6.1 x 10-3)

            = (8.7 x 6.1) x (109 x 10-3)

            = (8.7 x 6.1) x [ 109 + (-3) ]

            = (8.7 x 6.1) x ( 109 -3 )

            = (8.7 x 6.1) x ( 106 )

            = 53.07 x 106

            = (5.307 x 101) x 106

            = 5.307 x (106 x 101)

            = 5.307 x (106+1)

            = 5.307 x 107 (the final answer shall have its number of decimal places equal to the given value of question with least number of decimal places.)

            = 5.3 x 107    - final answer

#B. (4.9 x 10-2) x (3.6 x 105) = 1.764 x 104 = 1.8 x 104

#C. (1 x 104) x (1 x 106) = 1 x 1010

#D. 0.0001 / 5.8 x 103

            = 0.0001 / 5800.0

            = 0.00000001724

            = 1.7 x 10-8

#E. 4.16 x 10-4 / 1.2 x 10-2

            = (4.16 / 1.2) x (10-4 / 10-2)

            = 3.467 x [10-4– (-2) ]

            = 3.467 x [10-4+ 2 ]

            = 3.467 x 10-2

            = 3.5 x 10-2

#F. 8.9 x 105 / 2.3 x 102 = 3.9 x 103

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