Question

to make an omelet, mrs. buckley mixed three 50-gram eggs with 75 grams of milk and 25 grams of cheese in a pan. she covered the pan with a lid and put it on a hot stove. after a few minutes, mrs. buckleys omelet was ready. the cooked omelet had a mass of 225 grams. some water had vaporized from the eggs, milk, and cheese. then, the water vapor condensed on the inside of the pans lid. complete the bar graph to show the mass of the water. masses before and after the change bar graph with axes: mass (grams) from 0 to 250, categories: eggs, milk, cheese (before), omelet, water (after); eggs bar at 150, milk at 75, cheese at 25, omelet at 225, water bar empty

Explanation:

Step1: Calculate total mass before

First, find the total mass of ingredients before cooking. There are three 50 - gram eggs, so mass of eggs is \(3\times50 = 150\) grams. Mass of milk is 75 grams, mass of cheese is 25 grams. Total mass before: \(150 + 75+25=250\) grams.

Step2: Find mass of water

The mass of the omelet (after) is 225 grams. The total mass before is 250 grams. The difference in mass is the mass of water that vaporized (and then condensed, so mass of water is the difference). So mass of water \(= 250 - 225 = 25\) grams. So the bar for water should reach up to 25 grams on the y - axis.

Answer:

The bar for water should have a height corresponding to 25 grams (so it will be the same height as the cheese bar in the 'Before' section, reaching up to 25 on the y - axis).