Mol

Which substance has the greatest molecular mass?

• H₂O₂
• NO
• CF₄
• I₂

The gram formula mass of NH₄Cl is

• 22.4 g/mol
• 28.0 g/mol
• 53.5 g/mol
• 95.5 g/mol

N₂ + 3H₂ −-> 2NH₃

How many moles of ammonium are produced when 3 moles of nitrogen react with hydrogen?

• 6 moles Ammonium

• 1.5 moles ammonium

• 9 moles ammonium

• 9 moles hydrogen

H₂+Cl₂-->2HCl

How many moles of Cl₂ are needed to react with 3 moles of H₂?

• 5

• 2

• 3

• 6

What is the number of moles of 112 liter chlorine gas at STP?

• 3 mol
• 4 mol
• 5 mol
• 6 mol

What is the mass of 0.2 mol of Al? (Ag:27g/mol)

• 27 g
• 54 g
• 5,4 g
• 2,7 g

How many moles are in 225 g of CO?

• 28.01 mole
• 4.82 x 10²⁴ mole
• 6,302,25 mole
• 8.03 mole

Tags

NGSS.HS-PS1-7

Find the molar mass of C₈H₁₈.

• 114 g/mol
• 26 g/mol
• 66 g/mol
• 338 g/mol

6.02x10²³ is known as

• the address to get "free shavacado"
• Avogadro's number.
• Avocado's number.
• the genetic make up of Guacamole.

2H₂   +   O₂  →  2H₂O
How many moles of water can be produced if 8 moles H₂ are used?

• 4 moles
• 8 moles
• 16 moles
• 2 moles

Tags

NGSS.HS-PS1-7