PHET Molarity LAB

What is the colour of Copper (II) Sulfate (CuSO₄) solution within the simulation, and what is the molarity of the solution at 0.500 mol CuSO₄ and 0.5L solution volume?

• Blue, 1.0 M

• Green, 1.0 M

• Blue, 0.5 M

• Green, 0.5 M

Tags

NGSS.HS-PS1-1

What is the color of Potassium Chromate solution within the simulation, and what is the molarity of the solution at 0.500 mol K₂CrO₄ and 0.2L solution volume?

• Yellow, 2.5 M

• Green, 2.5 M

• Yellow, 1.5 M

• Green, 1.5 M

The color of Gold (III) Chloride (AuCl₃) solution within the simulation is _____. The molarity of the solution at 0.110 mol AuCl₃ and 0.5L solution volume is _____.

(a)  

What is the color of Cobalt (II) Chloride CoCl₂ solution within the simulation and what is the molarity of the solution at 1.000 mol CoCl₂ and 1.000L solution volume?

• Pink, 1.0 M

• Blue, 1.0 M

• Pink, 0.5 M

• Blue, 0.5 M

What is the color of Nickel (II) Chloride (NiCl₂) solution within the simulation and what is the molarity of the solution at 0.400 mol NiCl₂ and 1.00L solution volume?

• Green and 0.400 M

• Yellow and 0.400 M

• Blue and 0.500 M

• Pink and 0.300 M

What is the colour of Potassium permanganate solution within the simulation, and what is the molarity of the solution at 0.508 mol KMnO4 and 1.00L solution volume? Also, comment on the saturation of the KMnO4 solution.

• Purple, 0.508 M, Saturated

• Colorless, 0.508 M, Unsaturated

• Purple, 0.508 M, Unsaturated

• Colorless, 0.508 M, Saturated

What is the colour of Potassium permanganate solution within the simulation? What is the molarity of the solution at 0.960 mol KMnO4 and 1.00L solution volume? Comment on the saturation of the KMnO4 solution.

• Purple, 0.960 M, Saturated

• Purple, 0.960 M, Unsaturated

• Colorless, 0.960 M, Saturated

• Colorless, 0.960 M, Unsaturated

The relative formula mass of a compound is calculated by summing the relative atomic mass values for all the atoms in its formula as shown in the Periodic Table. What is the relative formula mass of CuSO4 (Cu = 63.55 a.m.u.; S = 32 a.m.u.; and O = 16 a.m.u.)?

• 159.55 a.m.u.

• 160.55 a.m.u.

• 159.10 a.m.u.

• 160 a.m.u.

Calculate the number of moles of CuSO₄ in 318 g CuSO₄.

(a)  

Using the formula provided, calculate the Molarity of 2 moles CuSO₄ in 1 L of water.

(a)