College

To determine the density of grains, a student uses a 50 ml beaker graded by 5 ml increments and a scale with 1 g absolute uncertainty. The measurement of the volume results in 3 full beakers and 1 beaker filled up to 30 ml. The measured mass of a plastic container with all the grains is 185 grams, and the measured mass of the same container without grains is 65 grams. What is the mass of the grains?

Answer :

Answer:

The mass of the grains = 120 ± 1 g

Step-by-step explanation:

we are given the following:

Total mass of container + grains = 185 grams

Mass of container = 65 grams

Therefore, mass of grains is calculated as follows:

Mass of grains = ( Mass of container + grains) - mass of container

= 185 - 65 = 120 grams.

since the scale has an absolute uncertainty of 1 g, the mass of the grains is written as 120 ± 1 g

Final answer:

The mass of the grains is calculated by subtracting the mass of the empty container from the mass of the container with the grains. By substituting the given values into this formula, we find that the mass of the grains is 120g.

Explanation:

The subject of this question pertains to density and mass, which are important concepts in Physics. In particular, the question is asking you to calculate the mass of grains given certain measurements and conditions.

To find the mass of the grains, we need to subtract the mass of the empty container from the mass of the container with the grains. This is because the mass of the grains is included in the measured mass of the container when filled with the grains. Here's the formula: Mass of grains = (Mass of the filled container) - (Mass of the empty container).

Substituting the given values: Mass of grains = (185 grams) - (65 grams) = 120 grams. Therefore, the mass of the grains is 120g.

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