the grocery store sells ground beef that is labeled 20% fat. How many grams of fat would be labeled in 1.3 pounds of ground beef
1 answer:
Answer:
Grams of fat would be labeled in 1.3 pounds of ground beef are :
<u>= 117.94 grams</u>
Explanation:
STEP 1: Convert pound into grams:
1 pound = 453.6 grams (learn this)
STEP 2 : Calculate the number of grams in 1.3 pound.
Multiply the number by 1.3
1.3 pound = 1.3 x 453.6 grams
1.3 pound = 589.68 grams
STEP 3: Calculate the mass in 20 % percentage of sample.
Here x = 589.68 grams
= 117.94 grams
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11.48-gram of are needed to produce 6.75 Liters of
gas measured at 1.3 atm pressure and 298 K
The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).
First, calculate the moles of the gas using the gas law,
PV=nRT, where n is the moles and R is the gas constant. Then divide the given mass by the number of moles to get molar mass.
Given data:
P= 1.3 atm
V= 6.75 Liters
n=?
R=
T=298 K
Putting value in the given equation:
Moles = 0.3588 moles
Now,
Mass= 11.48 gram
Hence, 11.48-gram of are needed to produce 6.75 Liters of
gas measured at 1.3 atm pressure and 298 K
Learn more about the ideal gas here:
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