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
barxatty [35]
3 years ago
12

How many moles of carbon are in 7.87*10^7 carbon atoms

Chemistry
2 answers:
iris [78.8K]3 years ago
7 0

Answer:

1.31×10^-16moles

Explanation:

If 1 mole of carbon contains 6.02×10^23 carbon atoms (Avogadro's number)

X moles of carbon contain 7.87×10^7 carbon atoms

X = 7.87×10^7/6.02×10^23

X= 1.31×10^-16moles

Note that 1 moles of any substance contains Avogadro's number of elementary entities (atoms, ions, molecules etc)

bonufazy [111]3 years ago
6 0
There is 7 moles in C
You might be interested in
A Starting substance in a chemical reaction is called a _______________.
djverab [1.8K]

Answer:

1.)REACTANT

  • These starting substances of a chemical reaction are called the <em>reactants</em>, and the new substances that result are called the products.
5 0
2 years ago
Certain gases in the atmosphere trap heat on Earth.
ValentinkaMS [17]

Answer:

Greenhouse

Explanation:

4 0
2 years ago
Put the following names in the correct alphabetic indexing order:(1) Topper &amp; Casey Plumbing(2) KST Enterprises(3) Leland an
dangina [55]

Answer: the correct option is 2, 3, 4, 1.

Explanation:alphabetic indexing order is the order in which files or names are being arranged according to the alphabet. In the following names:

2) KST Enterprises

3)Leland and Son Graphics

4)Lucinda Topper

1) Topper & Casey Plumbing.

While arranging alphabetically, the first letters are usually considered but in a scenario where alphabet occurs twice( 3 And 4) the second letter is considered. I hope this helps, thanks

5 0
2 years ago
Read 2 more answers
Assume that the maximum number of ATPs is produced (38). At pH 7, and in the presence of excess Mg2 , how much of the energy in
Lubov Fominskaja [6]

In one mole of glucose 38 ATP energy is stored this accounts for only 40 per-cent of the total energy in glucose.

Explanation:

In standard conditions, during the cellular respiration 1 mole of Glucose in the presence of oxygen produces 36 or 38 ATPs. This accounts for only 40% of the total energy as the remaining 60 per-cent of the energy is dissipated as heat.

I mole of glucose enters the glycolysis step of aerobic cellular respiration which after oxidative phosphorylation and Electron transport chain would give 38 ATP molecules.

It can be said that only 38.3% of energy is put in ATP molecules.

8 0
3 years ago
Sodium carbonate (NaCO3) is sometimes used as a water-softening agent. Suppose that a worker prepares a 0.730 M solution of NaCO
sergey [27]

The molarity of a solution is the number of moles of a substance divided by the volume in liters prepared.

molarity=\frac{n}{V}, where n is number of moles and V is the volume in liters.

In order to calculate the mass of solute we need to convert the volume and molarity to moles

1.421 L solution \times\frac{0.0730 moles}{1 Lsolution}= 1.037 mol NaCO_3

Now that we have moles we use the relative formula mass of NaCO₃, We have 1 Na atom, 1 C atom and 3 O atoms, thus

M_r= (1\times 22.99) + (1\times 12.00) + (3\times 16.00)= 82.99g/mol

1.037 \times\frac{82.99g}{mol} = 86.1g

5 0
3 years ago
Read 2 more answers
Other questions:
  • Absorbance readings are taken for five standard ferrous (ii) thiocyanate solutions and a beer’s law plot is created with the equ
    5·1 answer
  • Пжжж айтындарш 10 балл​
    11·1 answer
  • Helppppppppppppp it’s timedddddddddd
    12·1 answer
  • Fill in the coefficient needed to make the equation balanced.
    11·1 answer
  • If u get this right I’ll mark u brainliest
    5·2 answers
  • 6th grade science I mark as brainliest zoom in if needed
    10·1 answer
  • Which of the following most likely requires intermolecular forces?
    8·2 answers
  • a tomato plant cell has 24 chromosomes how many chromosomes will each daughter cell have after the cell undergoes a mitotic divi
    15·1 answer
  • Which of the following chemical equations are correctly balanced? Balance the equations that are not balanced.
    11·2 answers
  • Hydrogenation of cholesterol
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!