International SI Units

Question 1

Which isotope was basis for standardization of the meter?

Answer 1

krypton-86

Question 2

Liter- special name for __

Answer 2

Cubic decimeter

Question 3

Isotope basis for mol

Answer 3

Carbon-12

Question 4

Enzyme activity unit- amt of enzyme that will catalyze transformation of ___ of substrate/min

Answer 4

1 micromol

Question 5

Which is false?
A. When recording using Kelvin scale, omit the degree sign
B. Commas are used as spacers
C. Only one solidus is used when indicating per, or a denominator

Answer 5

B

Groups of 3 digits are separated by spacers