Pound or ounces.
Grams.
Probably in grams.
English units of mass include the poundmass, the poundal, and the slug.
how would you find the mass of 250 mL of water
You would determine its mass using a mass balance.
Mass of a pony
30 grams
Density = Mass/Volume
You would find the density of a crown by dividing the crown's mass by its volume. The formula for density is density = mass/volume. Weigh the crown to find its mass and then measure its volume by displacement in a known liquid.
Mass number is the sum of protons and neutrons.
To find the volume of an object, you can use the formula: Volume = Mass / Density. In this case, to find the volume, you would divide the mass (55.26) by the density (103.27) which would give you the volume of the object.
Work started at sunrise for all. First there was morning mass and then breakfast. The noble would look after the business of his estates and settle disputes. While the peasant would work the fields, take care of the animals, and do what was needed for the crops. Mid afternoon would have mass and a small lunch. After the lunch the noble would have weapons practice, hunt, hawk, or play games. The peasants kept working. The evening would begin with evening mass and dinner. This was done early since morning came early and the day started over.