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
STatiana [176]
3 years ago
10

The number of atoms of sulfur in 2.66 grams of sulfur

Chemistry
1 answer:
Sedbober [7]3 years ago
5 0
<h3>Answer:</h3>

5.0 × 10^21 atoms of sulfur

<h3>Explanation:</h3>

We need to know that 1 mole of an element contains atoms equivalent to the Avogadro's number.

Therefore;

1 mole of an element = 6.022 × 10^23 atoms

Thus, 1 mole of sulfur = 6.022 × 10^23 atoms

But, molar mass of sulfur = 32.065 g/mol

This means;

32.065 g contain 6.022 × 10^23 atoms

Therefore, 2.66 g of Sulfur will contain;

= (2.66 g ÷ 32.065 g/mol) ×  6.022 × 10^23 atoms

= 5.0 × 10^21 atoms

You might be interested in
4.7C Renewable and Nonrenewable Resources
ki77a [65]
Answer: petroleum
because it is a fossil fuel like coal, and natural gas.
4 0
3 years ago
How do you do problem #15?
SVETLANKA909090 [29]
You would convert the cg to g. 1.66 cg is 0.0166 g. then you add. 0.398 + 0.0166 = 0.4146. the answer is 0.4146 grams.
7 0
3 years ago
The reaction is found to be first order in IO3−, first order in SO32−, and first order in H+. If [IO3−]=x, [SO32−]=y, and [H+]=z
ollegr [7]

Answer:

rate = kxyz

Explanation:

It is worth knowing that the rate low can only be determined by experimentation only not by just balancing equations. So here we are told that all the reactants x , y and z are all first order. This is important because we use this as exponents. That is why the exponents of all the reactants will be 1.

rate = kxyz

7 0
3 years ago
Indicate the answer choice that best completes the statement or answers the question.
8090 [49]

Answer: A

Explanation:

5 0
3 years ago
Read 2 more answers
Why is it necessary to find the percent yield of a reaction? A. to determine the efficiency of the reaction B. to determine the
ANTONII [103]

Answer:

A. to determine the efficiency of the reaction

Explanation:

  • Percentage is the ratio of the actual yield to theoretical yield as a percentage. It is calculated by dividing the actual yield by theoretical yield then multiplying by 100%.
  • Calculation of percentage yield is important as it helps in the determination of efficiency of a reaction. For example in most industries for the purpose of making the most product with the least waste.
  • Additionally, calculating the percentage yield helps in determining other products that may be formed during the reactions.
4 0
3 years ago
Other questions:
  • Which is the best term to use when describing the energy of position?
    13·2 answers
  • The activity of tocopherols is destroyed by
    12·1 answer
  • Chromium (Cr) can combine with chlorine (Cl) to form chromium chloride (CrCl3).
    9·1 answer
  • What is the volume of 1.9 moles of chlorine gas (Cl2) at standard temperature and pressure (STP)?
    9·2 answers
  • 26. If a saturated solution of AgNO3 at 20°C contains 216 g AgNO3 per 100.0 g of water, what mass of water could
    9·1 answer
  • Describe how the periodic table differentiates between metals and nonmetals.
    12·1 answer
  • Which statement is true? A molecule having a covalent bond can be ionic. A molecule having a covalent bond is always polar. A mo
    8·2 answers
  • A gas occupies 65 mL at a temperature of 92.4 °C. What is the volume at 87.6 °C?
    8·1 answer
  • 1. The motion of an object with constant acceleration is also known as ________. *
    7·1 answer
  • The chemical and mechanical processes of food breakdown are called ________.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!