Chemical Balance Functionality and Capacity

The video tutorial introduces the chemical balance, a sensitive apparatus used in chemistry labs. It explains the balance's capacity, sensitivity, and components, including the pointer and adjustment mechanisms. The process of dismantling the balance is demonstrated, followed by instructions on using the rider and graduated beam. The tutorial also covers adjusting the balance and finding the weight of a watch glass, providing a comprehensive understanding of the chemical balance's operation.

What is the maximum capacity of the chemical balance?

• 400 grams

• 300 grams

• 200 grams

• 100 grams

What is the least count of the chemical balance?

• 0.0003 gram

• 0.0004 gram

• 0.0002 gram

• 0.0001 gram

Which component of the chemical balance makes it more sensitive?

• Sliding roller

• Long pointer

• Rider hook

• Adjusting screw

What is the function of the graduated beam in a chemical balance?

• To hold the weights

• To support the pointer

• To measure the temperature

• To adjust sensitivity

What is the role of the rider carrier in a chemical balance?

• To adjust the pointer

• To carry the rider along the beam

• To stabilize the balance

• To hold the weights

What is the significance of the terminal knife edge in a chemical balance?

• It stabilizes the pointer

• It holds the weights in place

• It adjusts the sensitivity

• It supports the graduated beam

How can the level of the chemical balance be adjusted?

• By rotating the graduated beam

• By changing the weights

• By using the adjusting screws

• By moving the pointer

What happens when the knob is moved in a clockwise direction?

• The balance locks in place

• The pointer moves to the left

• The pointer moves to the right

• The balance becomes unstable

What is the weight of the watch glass if it is lighter than 21 grams but heavier than 20 grams?

• 21.000 grams

• 20.500 grams

• 19.950 grams

• 20.850 grams

How is the weight of an object determined using a chemical balance?

• By observing the pointer's movement

• By counting the number of weights

• By measuring the temperature

• By adjusting the screws