When the coffee is brewed according to directions, a pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). how many kg of coffee are required to produce 250 cups of coffee?

of coffee beans is required to produce 250 cups of coffee.

Further Explanation:

The standard that is used to compare the measurements is called unit. Units are of two types, basic or fundamental and derived units. The units that cannot number are called basic units. For example, mass, time and temperature are basic units. The units that depend upon basic units to express themselves are called derived units. Volume, area, and density are some examples of derived units.

One unit can be converted into another one with the help of proper conversion factor. Conversion factors are the ratios that are written in the form of fractions, which when multiplied by the original unit, gives the desired units.

It is given that one pound of coffee beans yields 50 cups of coffee. Therefore the amount of coffee beans required to produce 250 cups of coffee can be calculated as follows:

The amount of coffee beans has to be converted into kilograms. The conversion factor for this is,

Therefore the amount of coffee beans can be calculated as follows:

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Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Basic concepts of chemistry

Keywords: unit, conversion factor, basic, fundamental, derived units, standard, mass, time, temperature, area, volume, density, coffee, coffee beans, 2.26796 kg, 5 pounds, 1 pound, 0.453592 kg.

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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