1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rewona [7]
3 years ago
8

1. Some athletes have as little as 3.0% body fat. If such a person has a body mass of 65 kg, how many pounds of body fat does th

at person have? In liposuction, a doctor removes fat deposits from a person’s body. If body fat has a density of 0.94 g/mL and 3.0 L of fat is removed, how many pounds of fat were removed from the patient?
Chemistry
2 answers:
noname [10]3 years ago
4 0

Answer:

4.299009 pounds of fat was present in the person's body.

6.2170284 pounds of fat were removed from the patient

Explanation:

Percentage of fat in the body = 3.05 of mass

Let the amount of fat be x

Mass of the athlete = 65 kg

3.0\%=\frac{x}{65 kg}\times 100

x = 1.95 kg = 4.299009 pounds (1 kg = 2.20462 pounds)

4.299009 pounds of fat was present in the person's body.

Density of fat = 0.94 g/L

Volume of fat to be removed = V = 3.0 L = 3000 mL[/tex]

Let the mass of fat to be removed be y

Density=\frac{Mass}{Volume}

0.94 g/mL=\frac{y}{3000 mL}

y = 2,820 g = 2.820 kg=6.2170284 pounds

6.2170284 pounds of fat were removed from the patient

77julia77 [94]3 years ago
3 0
1. 3.0% ----> 3.0 kg fat= 100 kg body weigh
also remember that 1 kg= 2.20 lbs

65 kg  \frac{3.0 kg}{100 kg} x  \frac{2.20 lb}{1 kg} = 4.29 lbs

2. 0.94 g/mL----> 0.94 grams= 1 mL
1 Liters= 1000 mL
1kg= 1000 grams

3 Liters  \frac{1000 mL}{1 L} x   \frac{0.94 grams}{1 mL} x  \frac{1 kg}{1000 g} x   \frac{2.20 lbs}{1 kg}  = 6.20 lbs
You might be interested in
A glass of unsweetened lemonade has a mass of 255 grams. A spoonful of sugar is massed before stirring It Into the lemonade and
Alik [6]

Answer:

270

Explanation:

Once you add more mass to something the mass doesn’t go away you add more mass.

hope this helps!

7 0
2 years ago
Given that the ka for hocl is 3.5 × 10–8, calculate the k value for the reaction of hocl with oh–.
Harlamova29_29 [7]
Following reaction is involved in above system
HOCl(aq)  ↔  H+(aq) + OCl-<span>(aq)
</span>OCl-(aq) + H2O(l)  ↔ HOCl(aq) + OH-<span>(aq)
</span>
Now, if the system is obeys 1st order kinetics we have
K  = [OCl-][H+<span>]/[HOCl]   ............. (1)
</span>∴ [HOCl-] / [OCl-] = [H+] (1 / 3.0 * 10-8<span>)   ............. (2)
</span>
and now considering that system is obeying 2nd order kinetics, we have
K  = [OH-][HOCl-] / [OCl-] ................. (3<span>)
</span>Subs 2 in 3 we get
K = [OH-][H+] (1 / 3.0 * 10-8<span>)
</span>we know that, [OH-][H+] = 10<span>-14

</span>∴K = 3.3 * 10<span>-7
</span>
Thus, correct answer is e i.e none of these
6 0
3 years ago
Read 2 more answers
What is 108 g +10+5+3
natali 33 [55]

ANSWER : 108 + 10 = 118

118 + ( 5 + 3 )

118 + 8 = <u>1</u><u>2</u><u>6</u>

<u>=</u><u> </u><u>1</u><u>2</u><u>6</u><u> </u><u>g</u>

7 0
3 years ago
Explain the difference between a theory and scientific law
Ksju [112]
Theory- <span>a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.

Scientific law- </span>a statement based on repeated experimental observations that describes some aspect of the universe.
8 0
2 years ago
Read 2 more answers
What is the formula for the aqueous salt produced when hydroiodic acid is neutralized by potassium hydroxide?
coldgirl [10]

Answer:

KOH(aq) + HCI(aq)  ----->  KCI(aq )+ H2O

base          acid               salt          water

hope this helps :)

Explanation:

5 0
3 years ago
Other questions:
  • Farmer brown is planting crops in his feild s. He wants to prevent the topsoil from being blown away by the wind or washed away
    12·2 answers
  • 17. When 1 mol of the following substances react completely with oxygen, the
    10·2 answers
  • What elements and atoms are involved in a basketball?
    9·1 answer
  • A sodium atom that has a mass number of 24
    6·1 answer
  • What is the amount of mass in each given unit of volume?
    12·1 answer
  • An experiment is designed to test what color of light will activate a photoelectric cell the best. The photocell is set in a cir
    8·2 answers
  • What is The pH and pOH of a 1.00x10-3M solution of CH3COOH (Ka=1.75x10-5) ?
    13·1 answer
  • 8. 53.4 mL of a 1.50 M solution of NaCl is on hand, but you need some 0.800 M
    5·1 answer
  • Huh? This is confusing 30 pointsssssss
    9·1 answer
  • AP CHEM answer and i will give brainliest, image attached
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!