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
Mekhanik [1.2K]
3 years ago
7

The mass of 0.0321 moles of Ca (CN)2

Chemistry
1 answer:
a_sh-v [17]3 years ago
5 0

The mass of Ca(CN)2 : 92,11 g/mol

<h3>Further explanation</h3>

Given

0.0321 moles of Ca(CN)2

Required

The mass

Solution

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

mol(n) = mass(m) : MW(molecular weight)

Input the value :

mass = mol x MW Ca (CN)2

mass =  0.0321 x 92,11 g/mol

mass = 2.957 g

You might be interested in
What is 1006 in scientific notation?
vladimir1956 [14]

Answer:

1.006 * 103

Explanation:

Add the number between 1 and 9 and add a decimal accordingly . so the answer is 1.006 multiplied by 10 raised to power 3

8 0
3 years ago
If a dog has a mass of 16.5 kg, what is its mass in the following units? Use scientific notation in all of your answers. (a) Wha
const2013 [10]

Answer:

(a) 16500 grams

(b) 16500000 milligrams

(c) 16500000000 micrograms

8 0
3 years ago
What is 4/5-1/2-1/5​
zimovet [89]

Answer:

\frac{1}{10}

Explanation:

First write all numerators above the common denominator

4/5 - 1/2 - 1/2=

\frac{4-1}{5}- 1/2

Subtract the numbers

\frac{4-1}{5}- 1/2 =

\frac{3}{5} - \frac{1}{2}

Write all numerators above the least common denominator 10

\frac{3}{5} - \frac{1}{2} =

\frac{6-5}{10}

Subtract the numbers and you got your answer :)

8 0
3 years ago
Read 2 more answers
When sugar is burned, water vapor and carbon dioxide are produced.
Bas_tet [7]

Answer;

12 carbon atoms, 22 hydrogen atoms and 11 oxygen atoms.

Explanation:

Using a balanced chemical equation we can identify the number of carbon, hydrogen, and oxygen atoms in sugar.

CxHyOn + 12O₂  → 11 H₂O + 12CO₂

When an equation is completely balanced, then the number of each atom of an element is equal on the reactant side and the product side.

Therefore;

For carbon; x = 12

For Hydrogen; y = (11×2) = 22

For Oxygen; n + (12×2) = 11 + (12×2)

                    = n + 24 = 11 + 24

                        n = 11

Therefore the sugar has, 12 carbon atoms, 22 hydrogen atoms and 11 oxygen atoms.

Thus the balanced equation would be;

C₁₂H₂₂O₁₁ + 12O₂  → 11 H₂O + 12CO₂

6 0
3 years ago
Read 2 more answers
Why are there only two elements in the first period of the periodic table? (1 point)
ratelena [41]

Answer:

A

Explanation:

Only 2 electrons can fit in the fist orbit around the nucleus is what placed them in the first row of the periodic table

7 0
3 years ago
Other questions:
  • aluminum nitrite and ammonium cloride react to form aluminium chloride. nitrogen and water. what mass of alluminum chloride is p
    5·1 answer
  • Pls help me im in k12 7th grade and I need help with this teacher graded assignment!!!
    10·1 answer
  • 8Ft<br> 14 ft<br> What is the Surface Area?
    14·1 answer
  • The color blue has a shorter wavelength than the color orange. Blue has _____.
    10·1 answer
  • Answer to AP chem question
    12·1 answer
  • Define monocarboxlic acid
    7·1 answer
  • Is this equation balanced?<br><br>nh4oh+hc2h3o2=nh4c2h3o2+h2o​
    13·2 answers
  • Which of Newton’s Laws of Motion is represented in the following description: The worker complaining because the box was too hea
    7·2 answers
  • Respond to the following prompt
    13·1 answer
  • Matter takes up _____.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!