What is the mass of a cup tea when you add sugar?

You can't determine the exact mass of a cup of tea with sugar without knowing the following:

* Volume of the tea: How much tea is in the cup?

* Type of tea: Different types of tea have different densities.

* Amount of sugar: How much sugar is added?

* Type of sugar: Granulated sugar, brown sugar, etc., have different densities.

To calculate the mass, you would need to:

1. Measure the volume of the tea.

2. Find the density of the type of tea you are using.

3. Measure the mass of the sugar added.

4. Calculate the mass of the tea using the formula: mass = volume x density.

5. Add the mass of the sugar to the mass of the tea.

Example:

* Let's say you have 250 ml of black tea (density = 1.01 g/ml).

* You add 2 teaspoons of granulated sugar (mass = 10 g).

Calculation:

1. Mass of tea = 250 ml x 1.01 g/ml = 252.5 g

2. Total mass = 252.5 g + 10 g = 262.5 g

Therefore, the mass of the cup of tea with sugar would be approximately 262.5 grams.