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
Fed [463]
3 years ago
6

How many atoms are in the 1.5 moles of tin atoms?

Chemistry
1 answer:
Anastasy [175]3 years ago
6 0

Answer:

option C = 9.0 x 10²³ atoms

Explanation:

Data Given:

no. of moles of tin (Sn) atoms = 1.5 moles

no. of tin (Sn) atoms = ?

Solution:

Formula used to find number of atoms

                  no. of moles = no. of atoms / Avogadro's number

Rearrange the above equation:

          no. of atoms =   no. of moles x Avogadro's number . . . . . . (1)

Where

Avogadro's number = 6.022 x 10²³

Put values in equation 1

           no. of atoms = 1.5 x 6.022 x 10²³

           no. of atoms = 9.033 x 10²³

Round the figure = 9.0 x 10²³ atoms

So option C is correct

You might be interested in
The usefulness of mendeleev s periodic table was confirmed by
BigorU [14]
In the table of mendeleev, the lines feature the elements in increasing order of atomic mass<span>.
</span>
hope this helps!
7 0
3 years ago
What is the concentration of a solution formed by mixing 89.94 grams of cobalt (II)
bezimeni [28]

Answer:

0.47 M

Explanation:

The concentration of the solution can be calculated using the following equation:

C = \frac{\eta}{V} = \frac{m}{M*V}

<u>Where:</u>

V: is the volume of the solution = 68.6x10⁻² L

η: is the moles of cobalt (II)  sulfate

m: is the mass of cobalt (II)  sulfate = 89.94 g

M: is the molar mass of cobalt (II)  sulfate = 281.103 g/mol

The concentration of cobalt (II)  sulfate is:

C = \frac{m}{M*V} = \frac{89.94 g}{281.103 g/mol*68.6 \cdot 10^{-2} L} = 0.47 mol/L

We used the molar mass of the cobalt (II)  sulfate heptahydrate (281.103 g/mol) since it is one of the most common salts of cobalt.

Therefore, the concentration of a solution of cobalt (II)  sulfate is 0.47 M (assuming that the cobalt (II)  sulfate is heptahydrate).

I hope it helps you!

3 0
3 years ago
Read 2 more answers
Hi! I need some solar system facts!
nikitadnepr [17]
The Solar System[b] is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly.[c] Of the objects that orbit the Sun directly, the largest are the eight planets,[d] with the remainder being smaller objects, the dwarf planets and small Solar System bodies. Of the objects that orbit the Sun indirectly—the natural satellites—two are larger than the smallest planet, Mercury.[e]
5 0
3 years ago
Read 2 more answers
All of the following are classified as acids except
Neporo4naja [7]
I think D im not completely sure  
7 0
3 years ago
At construction sites, workers often reduce erosion by ____.
Naddik [55]
<h3><u>Answer;</u></h3>

<em>All the above</em>

Workers at construction sites often reduce erosion by;

  • <em>Moving excess sediment back to its original location </em>
  • <em>Planting trees </em>
  • <em>Spraying water on bare soil</em>
<h3><u>Explanation;</u></h3>
  • Soil erosion is a naturally occurring process which involves the wearing away of the topsoil by natural forces such as wind, water or other forces associated with farming.
  • <em><u>Construction of roads and buildings results to large amounts of soil erosion around the world. It is therefore important to put measures that would help reduce soil erosion at construction sites</u></em>. These measures uses principals of soil control such as implementing sediment control, limiting soil exposure, reducing the runoff velocity, and modifying topography among others.
5 0
3 years ago
Other questions:
  • Metals are highly likely to form ionic bonds with non-metals. True False
    8·2 answers
  • What characteristics do scientists use to distinguish between organisms in different kingdoms
    14·1 answer
  • To isolate the benzoic acid from the bicarbonate solution, you should
    7·1 answer
  • What is the product of Mg+HF
    15·1 answer
  • 10. A(n) eclipse occurs at a full moon when Earth is directly between the moon and the sun.​
    9·1 answer
  • If I have a +2 oxidation number do I give up or accept electrons?​
    8·1 answer
  • Which of the following is an example of a physical change?
    12·1 answer
  • Write about injector use in gas chromatography in detail. (don't copy from online sites )​
    15·1 answer
  • Which unit is used for measuring atomic mass? O A. atomic mole O B. grams/mole Ос. grams O D. atomic mass unit ОЕ. atomic mass w
    5·2 answers
  • For a constant force, when the surface area is tripled the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!