Chemistry Sol

What is the mass of one mole of S₈?

• 32.1 mg
• 32.1 g
• 257 g
• 4.8x10²⁴ g

• 2
• 7
• 9
• 14

Tags

NGSS.HS-PS1-7

Which of the following is not a base?

• Al(OH)₃
• CaSO₄
• Ca(OH)₂
• KOH

A solution contains 225 g of glucose, C₆H₁₂O₆, dissolved in enough water to make 0.825 L of solution. What is the molarity of the solution?

• 0.66 M
• 0.97 M
• 1.03 M
• 1.52 M

Which volume will be occupied by a gas containing 6.02 x 10²³ atoms at STP?

• 1.0 L
• 11.2 L
• 22.4 L
• 44.8 L

The hydrogen ion concentration of a solution is 1x10^-7. What is the pH of this solution?

• 7
• 14
• 10
• 1

What is the final concentration if 50.0 mL of a 2.00M solution are diluted to  500.0mL?

• 0.100 M
• 0.200 M
• 0.400 M
• 1.00 M

A solution which has a concentration that exceeds its predicted solubility at a certain temperature and pressure would be---

• unsaturated
• dilute
• saturated
• supersaturated

Zn + 2HCl→ZnCl₂ + H₂
   If 0.600 gram of zinc is used, what is the amount of zinc chloride that is produced in the above reaction?

• 1.25 g
• 0.125 g
• 0.018 g
• 12.5 g

Tags

NGSS.HS-PS1-7

How many moles of copper are equivalent to 3.44 x 10²³ atoms of copper?

• 0.571 moles
• 1.75 moles
• 5.41 moles
• 0.285 mol