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
Dmitrij [34]
3 years ago
8

If you have 23.8g of CaCl2, how many formula units is it?

Chemistry
1 answer:
NemiM [27]3 years ago
8 0

Answer:

1.3×10²³ formula unit

Explanation:

Given data:

Mass of CaCl₂ = 23.8 g

Number of formula unit = ?

Solution:

Number of moles = mass/molar mass

Number of moles = 23.8 g/110.98 g/mol

Number of moles = 0.21 mol

1 mole of any substance contain 6.022×10²³ formula unit

0.21 mol × 6.022×10²³ formula unit / 1mol

1.3×10²³ formula unit

You might be interested in
Which of the following is a direct result of global warming that is causing endangerment of polar bears?
frez [133]

increased warmth causing glaciers to melt

you're welcome! :)

3 0
2 years ago
can someone with this? I need someone to do the "THINK" or at least tell me what it's asking for. I Already did the questions in
Jet001 [13]

Answer:

fx87tx97td97td7rdd86ts86rxt6x96rs86rs8yrs7rx6rx6rs6rsi6rsi6rsyfdfx87tx97td97td7rdd864s86rxt6x96rs86rs8yrs7rx6rx6rs6rs 44sx64sx6itxi6rx4sx6itxi6rx6irxi6rz6r44sx64sx6itxi6rx4sx6itxi6rx6irxi6rz6rz6r

7 0
3 years ago
If a black hole is invisible how can we determine when one is present
Gelneren [198K]

Answer: you can’t

Explanation: i’m dumb too

8 0
3 years ago
The cell theory states that all living things are composed of one or more cells that carry out the functions needed to support l
saw5 [17]

Answer:

New cells arise from existing cells.

Explanation:

According to the cell theory, "all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells"(Lumen Learning).

Cells are the basic unit of life. Some organisms consists of only one cell while other organisms have many cells and are called multicellular organisms.

In multicellular organisms, new cells are formed by the division of preexisting cells.

7 0
2 years ago
During an experiment, the percent yield of calcium chloride from a reaction was 82.38%. Theoretically, the expected amount shoul
gregori [183]

Answer:

Actual yield = 86.5g

Explanation:

Percent yield = 82.38%

Theoretical yield = 105g

Actual yield = x

Equation of reaction,

CaCO₃ + HCl → CaCl₂ + CO₂ + H₂O

Percentage yield = (actual yield / theoretical yield) * 100

82.38% = actual yield / theoretical yield

82.38 / 100 = x / 105

Cross multiply and make x the subject of formula

X = (105 * 82.38) / 100

X = 86.499g

X = 86.5g

Actual yield of CaCl₂ is 86.5g

7 0
3 years ago
Other questions:
  • What does the octet rule state that explains why atoms bond
    9·2 answers
  • In a laboratory experiment, John uses a mesh to separate soil particles from water. Which technique of separation is he using? c
    8·2 answers
  • Given the reaction: 2 hi h2 + i2. if kc' for the reverse reaction is 1.85 x 10-2 at 425°c, what is kc for the forward reaction a
    13·1 answer
  • A steel cylinder of oxygen is being store in a room at 25.0 °C under a pressure of 1250 atm. What pressure would be exerted by t
    7·1 answer
  • In the following reaction, what coefficient will be written before the oxygen molecule (O2) to balance the chemical equation? (1
    11·2 answers
  • Which temperature on the Celsius scale corresponds to 257k on a Kelvin scale
    11·1 answer
  • Is carbon dioxide a pure substance
    9·1 answer
  • If I have one mole of sulfur, how many atoms would that be?
    9·1 answer
  • In San Diego (elevation 15 feet), you
    10·1 answer
  • What is an example of service in the cement industry
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!