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Nady [450]
3 years ago
8

Explain how Archimedes' principle determines the buoyant force on an object in any fluid medium.

Chemistry
1 answer:
gladu [14]3 years ago
6 0

Answer:

<em>An object in a fluid medium displaces a set amount of fluid upon immersion. Archimedes' principle states that the weight of the displaced fluid is equal to the buoyant force exerted on the object</em>

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You wash dishes for a chemistry laboratory to make extra money for laundry. You earn 12 dollars/hour, and each shift lasts 75 mi
PIT_PIT [208]
You calculate the amount of loads of laundry as follows:

((6 x 0.25)/ load) x 10 loads = 15.00 total cost required for laundry 

<span>(6.00 / 60 min) x (75 min/shift) = 7.50 cost / shift </span>

15.00 / (7.50 / shift) = 2 loads of  laundry

Hope this answers the question.
4 0
3 years ago
Read 2 more answers
Ibuprofen is a common pain reliever and anti-inflammatory. Its formula is C13H18O2. What percent by mass of ibuprofen is the car
Anarel [89]

Answer:

Explanation:

%Carbon =  mass of carbon / mas of C13H18O2) X100%

             =      13X12/ (13X12+18+2X16)X100%

           =    156/206) X100%= 75.7%

8 0
2 years ago
Density is the ratio of mass to volume. Another way to say this is
Oliga [24]

Answer:

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5 0
2 years ago
8CO + 17H2 → C8H18 + 8H2O
nekit [7.7K]

\frac{6.50mole CO}{1} \frac{17mole H2}{8mole CO}\frac{2 gram H2}{1mole H2}  =27.625

3 sig figs= 27.6

4 0
2 years ago
Suppose you have 100 grams of radioactive plutonium-239 with a half-life of 24,000 years. how many grams of plutonium-239 will r
Alexandra [31]

To solve this problem, let us first calculate for the rate constant k using the half life formula:

t1/2 = ln 2 / k

where t1/2 = half life period = 24,000 years, therefore k is:

k = ln 2 / 24,000

k = 2.89 x 10^-5 / yr

 

Now we use the rate equation:

A = Ao e^(-k t)

where,

A = mass of Plutonium-239 after number of years

Ao = initial mass of Plutonium-239

t = number of years

 

A. t = 12,000 years, find A

A = 100g e^(- 2.89 x 10^-5 * 12,000)

A = 70.7 g

 

B. t = 24,000 years, find A

A = 100g e^(- 2.89 x 10^-5 * 24,000)

A = 50 g

 

C. t = 96,000 years, find A

A = 100g e^(- 2.89 x 10^-5 * 96,000)

<span>A = 6.24 g</span>

5 0
2 years ago
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