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
Maurinko [17]
3 years ago
13

How many moles of ethanol C2H6O, are in a 10.0g sample​

Chemistry
1 answer:
Brrunno [24]3 years ago
6 0

Answer: 0.217 mol

Explanation:

To find the amount of moles in a 10 g sample, we need the molar mass of ethanol.

Molar Mass: 46.07 g/mol

Now that we have the molar mass, we can find moles.

10.0 g*\frac{1mol}{46.07g}=0.217 mol

We know that there are 0.217 mol in a 10.0 gram sample.

You might be interested in
All synthetic elements...
ki77a [65]
In chemistry, a synthetic element is a chemical element that does not occur naturally on Earth, and can only be created artificially. So far, 24 synthetic elements have been created (those with atomic numbers 95–118). All are unstable, decaying with half-lives ranging from 15.6 million years to a few hundred microseconds.

Here is a picture am if It doesn't show up, I am sorry
4 0
3 years ago
The Haber-Bosch process operates at reaction pressures of 200.0
kiruha [24]
<h3>Haber - Bosch process, method of directly synthesizing ammonia from hydrogen... The reaction is carried out at pressure ranging from 200 to 400 atmosphere's</h3>

sana maka tulong ❣️

8 0
2 years ago
Which form of energy can be connected closely to climate change?
Art [367]

Answer:

COAL

Explanation:

4 0
3 years ago
PLEASE HELP 50 POINTS A really colorful reaction is the synthesis reaction of aluminum and iodine, often called the “Purple Haze
marysya [2.9K]

Answer:

I know that the limited reactant Al.

7 0
3 years ago
Suppose of nickel(II) chloride is dissolved in of a aqueous solution of potassium carbonate. Calculate the final molarity of chl
stich3 [128]

Answer: Molarity of chloride anion = 0.32 M

<em>Note: the question is missing some values. The full question is given below;</em>

<em>Suppose 7.26 g of nickel(II) chloride is dissolved in 350 mL of a 0.50 M aqueous solution of potassium carbonate. Calculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the nickel(II) chloride is dissolved in it. Be sure your answer has the correct number of significant digits.</em>

Explanation:

Molarity or molar concentration is the number of moles (mol) of component per volume (liters) concentration of solution in mol/L or M

The mass of nickel (II) chloride is 7.26 g.

The volume of potassium carbonate is 350 mL = 0.35 L

The molarity of potassium carbonate solution is 0.50 M

The reaction of nickel (II) chloride and potassium carbonate is given below.

NiCl₂(aq) + KCO₃(aq) --------> KCl(aq) +NiCO₃(s)

The dissociation of nickel (II) chloride is given below.

NiCl₂   -----> Ni²⁺ + 2Cl⁻

The molar mass of nickel (II) chloride is  129.6 g/mol

The moles of nickel (II) chloride can be calculated by the formula given below;

No of moles  = mass(g) / molar mass (g/mol)

No of moles = 7.26 / 129.6 = 0.056 moles

Therefore, molarity of NiCl₂ = 0.056 moles/ 0.35 L = 0.16 M

The molarity of 1 mole nickel (ii) chloride is 0.16 m and according to dissociation of nickel (II) chloride, 1 mole of nickel (II) chloride gives 2 moles of chloride anion.

Therefore, the molarity of chloride anion = 0.16 * 2 = 0.32 M

3 0
3 years ago
Other questions:
  • Which one of the following is a pure substance? 1.milk2. Concrete3. Wood 4. Salt water5. Elemental copper
    5·1 answer
  • What is the chemical name and formula of a compound that has one carbon atom and four chlorine atoms?
    12·2 answers
  • Choose the number of significant figures indicated 0.06
    10·1 answer
  • Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball a
    10·2 answers
  • What is the connection between chemistry and synthetic materials?
    11·1 answer
  • Heeelllllllllllllpppppppppp
    13·1 answer
  • What is the final temperature when 125 g of H20 at 16°C is mixed with 185 g of H20 at 82°C?
    12·1 answer
  • Please help me thanks so much....I’ll mark you?!?!:))))
    6·1 answer
  • *Name three ways the organisms in a food web get energy.
    14·1 answer
  • In this experiment you’ll be grabbing the relationship between mass and volume you’ll be placing the volume on the X axis and th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!