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
VikaD [51]
3 years ago
14

Some athletes have as little as 3.0% body fat. If such a person has a body mass of 67 kg , how many pounds of body fat does that

person have?
Chemistry
1 answer:
Elanso [62]3 years ago
8 0
Data:
mass = 67 Kg → 147.71 pounds

Solving:

\frac{3}{100}*147.71 =  \frac{443.13}{100} \approx \boxed{4.43\:pounds\:of\:body\:fat}\end{array}}\qquad\quad\checkmark


You might be interested in
A 3.452 g sample containing an unknown amount of a Ce(IV) salt is dissolved in 250.0-mL of 1 M H2SO4. A 25.00 mL aliquot is anal
SOVA2 [1]

Answer:

1,812 wt%

Explanation:

The reactions for this titration are:

2Ce⁴⁺ + 3I⁻ → 2Ce³⁺ + I₃⁻

I₃⁻ + 2S₂O₃⁻ → 3I⁻ + S₄O₆²⁻

The moles in the end point of S₂O₃⁻ are:

0,01302L×0,03428M Na₂S₂O₃ = 4,463x10⁻⁴ moles of S₂O₃⁻. As 2 moles of S₂O₃⁻ react with 1 mole of I₃⁻, the moles of I₃⁻ are:

4,463x10⁻⁴ moles of S₂O₃⁻×\frac{1molI_{3}^-}{2molS_{2}O_{3}^-} = 2,2315x10⁻⁴ moles of I₃⁻

As 2 moles of Ce⁴⁺ produce 1 mole of I₃⁻, the moles of Ce⁴⁺ are:

2,2315x10⁻⁴ moles of I₃⁻×\frac{2molCe^{4+}}{1molI_{3}^-} = 4,463x10⁻⁴ moles of Ce(IV). These moles are:

4,463x10⁻⁴ moles of Ce(IV)×\frac{140,116g}{1mol} = <em>0,0625 g of Ce(IV)</em>

As the sample has a 3,452g, the weight percent is:

0,0625g of Ce(IV) / 3,452g × 100 = <em>1,812 wt%</em>

I hope it helps!

5 0
3 years ago
What tittle might the indigenous communities of the Americans give the age of exploration
Rom4ik [11]

Answer:

Poop

Explanation:everyone like poop

4 0
3 years ago
A chemical plant produces ammonia using the following reaction at a very high temperature and pressure. Which design issue is mo
Lorico [155]

Answer:

D. The equipment needed to accommodate the high temperature and pressure will be expensive to produce.​

Explanation:

Hello!

In this case, for the considered reaction, it is clear it is an exothermic reaction because it produces energy; and therefore, the higher the temperature the more reactants are yielded as the reverse reaction is favored. Moreover, since the effect of pressure is verified as favoring the side with fewer moles; in this case the products side (2 moles of ammonia).

In such a way, the high pressure favors the formation of ammonia whereas the high temperature the formation of hydrogen and nitrogen and therefore, option A is ruled out. Since the high pressure shifts the reaction rightwards and the high temperature leftwards, we would not be able to know whether the reaction has ended or not because it will be a "go and come back" process, that is why B is also discarded. Now, since hydrogen and nitrogen would be the "wastes", we discard C because they are not toxic. That is why the most accurate answer would be D. because it is actually true that such equipment is quite expensive.

Best regards!

6 0
2 years ago
Electromagnetic waves that are harmful to living things are
Westkost [7]
B. both high energy and low energy waves
5 0
3 years ago
True or False: The bowling ball pendulum didn’t hit Bill Nye in the face because the amount of kinetic energy can never be more
Ira Lisetskai [31]

Answer: false

Explanation:

3 0
3 years ago
Other questions:
  • Consider the following equilibrium:
    8·2 answers
  • um bequer muito utilizado em laboratorio mede volumes de ate 250 ml.determine esse volume em: a)centimetros cubicos b)litros c)m
    15·1 answer
  • 18 g of copper is mixed with silver nitrate in water. How much copper ll nitrate will formed?
    7·1 answer
  • Elements in the periodic table are arranged in columns or
    10·2 answers
  • Compared to compounds that possess only dipole-dipole intermolecular forces, compounds that possess hydrogen bonding generally:
    7·2 answers
  • What type of molecular attraction accounts for the high boiling point of H2O
    10·1 answer
  • A sodium ion, Na+, with a charge of 1.6×10−19C and a chloride ion, Cl− , with charge of −1.6×10−19C, are separated by a distance
    5·1 answer
  • Nepal is rich in species diversity why?? Explain with any three reason. Help this beginer out !!!​
    6·1 answer
  • A + 2 B + 4 C → products is known to be second order in A, first order in B and independent of the concentration of C. What is t
    14·1 answer
  • Please please please please please please help me a b c or d
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!