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
lukranit [14]
2 years ago
12

A substance is 35.7% carbon by mass. How much carbon could be recovered from 769g of substance?

Chemistry
2 answers:
vlabodo [156]2 years ago
7 0

Answer : The mass of carbon recovered from 769 grams of substance is 274.5 grams.

Explanation :

As we are given 35.7 % carbon by mass that means 35.7 grams of carbon present in 100 grams of substance.

Now we have to calculate the mass of carbon recovered from 769 grams of substance.

As, 100 grams of substance recovered 35.7 grams of carbon

So, 769 grams of substance recovered \frac{769}{100}\times 35.7=274.5 grams of carbon

Therefore, the mass of carbon recovered from 769 grams of substance is 274.5 grams.

ella [17]2 years ago
4 0
Below are the choice that can be found from other sources:

..22.9 
<span>2..274 </span>
<span>3..180 </span>
<span>4..2290 </span>
<span>5.1.80 </span>
<span>6..258 </span>
<span>7..Not Enough Info
</span>
Below is the solution:

0.357 * 769g = 274.533g 
i.e. the answer is 2) 274 grams

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
You might be interested in
If an atom of an element has a mass number of 45 and it has 20 neutrons in its nucleus, what is the atomic number of the
HACTEHA [7]

Answer:

Explanation:

uestion

If an atom of an element has a mass number of 45 and it has 20 neutrons in its nucleus, what is the atomic number of the

element?

3 0
3 years ago
Which statement best describes a mole ?
pentagon [3]
<span>
It contains 6.02 mc001-1.jpg 1023 grams of sodium chloride.

It is the mass of 12 carbon atoms.

It contains 6.02 mc001-2.jpg 1023 particles of a given substance.</span>
5 0
3 years ago
Read 2 more answers
What are three forms of the element carbon?
german

Answer:

There are at least eight forms of carbon: amorphous, graphite, diamond, fullerenes, aggregated diamond nanorods, carbon nanofoam, glassy carbon, and linear acetylenic carbon.

Explanation:

3 0
3 years ago
Dos moléculas de Clorato de Potasio en estado sólido, al aplicarle calor se descompone en dos moléculas de Cloruro de Potasio en
DedPeter [7]

Answer:

2KClO3 (s) -------> 2KCl (s) + 3O2 (g)

Explanation:

Una ecuación de reacción química es una representación simbólica de lo que sucede en un recipiente de reacción.

Al escribir la ecuación de reacción química para una reacción particular, se utilizan los símbolos químicos de todas las especies involucradas.

Por la reacción. en el cual dos moléculas de Clorato de Potasio en estado sólido, al aplicar calor se descompone en dos moléculas de Cloruro de Potasio en estado sólido y tres moléculas diatómicas de Oxígeno en estado gaseoso, la ecuación de reacción se escribe así;

2KClO3 (s) -------> 2KCl (s) + 3O2 (g)

La regla para escribir ecuaciones de reacción química balanceada es que el número de átomos de cada elemento en el lado derecho de la ecuación de reacción debe ser el mismo que el número b de átomos del mismo elemento en el lado izquierdo de la ecuación de reacción.

Si realizamos un conteo de átomos simple en ambos lados de la ecuación de reacción, la regla se cumple

7 0
3 years ago
Is the reaction mg²⁺(aq) + h₂o(l) → mgo(s) + 2h⁺(aq) endothermic or exothermic?
aliya0001 [1]
<span>If energy is released, the reaction is exothermic. If energy is absorbed, the reaction is endothermic. Since heat is being absorbed in this reaction (to break down H2O into H2 and O), the reaction is endothermic.</span>
3 0
3 years ago
Other questions:
  • Help
    13·1 answer
  • Which factor affects gravitational potential energy but not elastic potential energy?
    13·1 answer
  • Why is using dendroclimatology not always a true measure of a past climate?
    5·1 answer
  • Na2CO3 + CaCl2•2H2O -&gt; CaCO3 + 2NaCl + 2H2O
    15·1 answer
  • The Sun is a star located in
    6·2 answers
  • Which statement BEST explains whether or not matter is conserved in this chemical reaction?
    7·2 answers
  • Asp plz do right now
    8·1 answer
  • If a negatively charged ion is more concentrated outside the cell, the forces required to balance the chemical gradient would be
    8·1 answer
  • Calculate the Molarity when 14.6 g Ethanol (C2H5OH) is dissolved in a 2.10 L solution.
    12·1 answer
  • ANSWER PLS!!!!!!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!