CHEM LAB - NUR22E

What is the SI unit for Luminous intensity?

• m

• cd

• kg

• s

Which of the following is an inexact number

• 10 pencils

• 3.54 g of rice

• 1 kg = 2.2 lbs

• 1 Dozen

Which of the following is a correct statement?

• In terms of mass, 50 g solid rock is heavier than 50 g of Air

• In terms of mass, 50 g Air is heavier than 50 g of solid rock

• 50 g of Air and 50 g of solid rock are equal in terms of density and mass

• In terms of density, 50 g of solid rock is denser than 50 g of Air

Which of the following is the smallest number?

• 5 × 10 ³

• 7 × 10^–6

• 3 × 10 ⁴

• 2 × 10^–5

Calculate the mass of element Zinc in grams with same volume as 50 g of Aluminum. The density of Zinc = 7.14 g/mL and density of Aluminum=2.70 g/mL

• 7.00 g

• 18.51 g

• 105.77 g

• 132.22 g

Which of the following is an incorrect statement?

• 1 x 10^-9 g is equal to milligram

• 6 x10³ m is equal to 6 km

• The exponential notation for 5.76 x 10^-6 g is 5.76 microgram

• The unit of speed that is m/s is an example of derived unit.

BONUS QUESTION: WHAT IS THE COMPLETE NAME OF YOUR CHEM LAB INSTRUCTOR?

• ALBERT EINSTEIN

• ISAAC NEWTON

• JAY ROBERT LACEDA

• ERNEST RUTHERFORD

Which of the following is incorrectly reported answer? *( consider significant figures/ decimal places in your final answer)

• 6.221 x 5.2 = 32

• 20.42 + 1.322 + 83.1 = 104.8

• 2.31 / 1.586 = 1.45

• 2.31-1.586 = 0.72

Which of the following is not a fundamental quantity?

• Mass

• Density

• Length

• Temperature

Which of the following is a possible shell-subshell?

• 1p

• 2d

• 2s

• 3f