Formula Weight

Calculate: A car weighs 800 kg and is travel at 35 m/s. What's it kinetic energy ?

• 49,000 j

• 490,000 j

• 140,000 j

• 980,000 j

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Which formula would you use to calculate weight (Fg)?

• mass/gravity

• gravity/mass

• weight-mass

• mass x gravity

Tags

NGSS.HS-PS2-4

What is the formula weight of water (H2O)?

• 18 g/mol

• 20 g/mol

• 16 g/mol

• 22 g/mol

Tags

NGSS.MS-PS1-1

Which of the following represents the formula weight of carbon dioxide (CO2)?

• 44 g/mol

• 32 g/mol

• 28 g/mol

• 40 g/mol

How do you calculate the formula weight of a compound?

• Add the atomic weights of all atoms in the formula

• Multiply the atomic weights of all atoms in the formula

• Subtract the atomic weights of all atoms in the formula

• Divide the atomic weights of all atoms in the formula

What is the formula weight of sodium chloride (NaCl)?

• 58.44 g/mol

• 60 g/mol

• 55 g/mol

• 50 g/mol

Which element contributes the most to the formula weight of sulfuric acid (H2SO4)?

• Sulfur

• Hydrogen

• Oxygen

• None

What is the formula weight of glucose (C6H12O6)?

• 180 g/mol

• 160 g/mol

• 200 g/mol

• 150 g/mol

Which of the following compounds has the highest formula weight?

• H2O

• CO2

• NaCl

• C6H12O6

What is the formula weight of ammonia (NH3)?

• 17 g/mol

• 18 g/mol

• 16 g/mol

• 15 g/mol