Answer to Question #174781 in General Chemistry for dafd

Question

Adding NH4SCN: Dark Red Solution

Prediction:orange

Adding AgNO3: Cloudy white Solution:

Prediction:white

Increasing Temperature: light orangish-yellow solution

Prediction bubbling orange

Decreasing Temperature: (Darker orange)

prediction: orange

Moving tube 4 to hot water: Light yellowish-orange

Prediction: orange

Moving tube 5 to ice water: Dark Orange

Prediction: orange

• please answer all questions with an explanation*

• Based on the color change you observe, is the equilibrium for the solution in the hot water shifting left or right?
• Do your observations indicate that the reaction is exothermic or endothermic? That is, based on your observations, is heat a product or a reactant? How do you know?
• What is the net ionic equation of this reaction with heat included in the equation?
• Are equilibrium shifts reversible? Justify using evidence from the lab.

Answer 1

The equilibrium is shifting to the right

The reaction is endothermic for heat is absorbed

No equilibrium shifts are not reversible