Chemistry, 01.09.2019 20:00 fantasticratz2

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?

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Answer from: carlinryan

$\boxed{2.26796{\text{ kg}}}$ 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:

$\begin{aligned}{\text{Amount of coffee beans required}}&=\left( {250{\text{ cups}}} \right)\left( {\frac{{1{\text{ pound}}}}{{50{\text{ cups}}}}} \right)\\&=5{\text{pounds}}\\\end{aligned}$

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

$1{\text{ pound}} = 0.453592{\text{ kg}}$

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

$\begin{aligned}{\text{Amount of coffee beans required}}&= \left( {{\text{5 pounds}}} \right)\left( {\frac{{{\text{0}}{\text{.453592 kg}}}}{{{\text{1 pound}}}}} \right)\\&= 2.26796{\text{ kg}}\\\end{aligned}$

Learn more:

What is the mass of 1 mole of viruses: Determine the moles of water produced:

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.

Answer from: Quest

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

Answer from: Quest

The answer is probably c. xylem

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