you are given a bottle of milk and asked to find density of the milk. how would u measure :?

Question

a) the mass of the milk
b) the volume of the milk
c) tell me one likely source of error in these measurements

Answer 1

1. Weigh the bottle of milk
2. Pour the milk into a graduated container and record its volume
3. Weigh the empty bottle and subtract this weight from the 1st weight to get the weight of milk.
4. Divide the weight of milk by the volume to get density.

If you don't have a graduated container available:
2. Mark the level of the milk in the bottle.
3. pour the milk into another container.
4. Weigh the empty bottle and subtract to get the weight of milk
5. Fill the bottle to the mark with water.
6. Weigh the bottle of water and subtract the weight of the bottle to get the weight of water.
7. Divide the weight of milk by the weight of water, giving you the density of milk in g/ml.
8. The weight of the water, with appropriate conversion factors applied, is the volume. (remember to divide weights by g if the scale does not read out in mass units)

Answer 2

a)
weight it an get kg or pounds then convert weight to mass units by dividing by gravitational constant 9.81 if in pounds or 32.2 if in kg

b) humm, use a volumetric container ???

get density by dividing mass by volume

likely source of error is miscalculation, or not reading the miniscus on the volumetric container

Answer 3

By dipping your b@lls in it!