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 physical property of the water changes when it reaches its melting point
KiRa [710]
It's temperature changes!
6 0
3 years ago
Read 2 more answers
How moles are in 45.7g of CH3?
miskamm [114]

first find the atomic weight of CH3 which would be

atomic weight: 12.011 (3×1.008) = 36.32 g/mol

then find the moles in the given mass

36.32 ÷ 45.7 = 0.794

I HOPE I'M NOT WRONG I HAVENT DONE CHEM IN SO LONG

6 0
2 years ago
3. How many molecules are in 0.500 moles of sulfur?
satela [25.4K]

Explanation:

No of molecules=0.500×6.023×10²³=3.011×10²³ molecules

7 0
3 years ago
What do we call the type of chemical reaction that occurs in this step? Explain how the name of this type of reaction relates to
icang [17]
Figure it out yourself
6 0
2 years ago
2. List and elaborate on at least two limitations of the 24-hour recall as a
Pavlova-9 [17]

Answer:

The correct answer is - may not be typical, and participant burden.

Explanation:

The 24-hour recall is nothing but a retrospective method of diet assessment. In this method, an individual is interviewed about his or her diet consumption during the last 24 hours.

The disadvantages or limitations of this method include the inability of a single day's intake to describe the typical diet, multiple recalls to intake, cost and administration time; participant burden, have to recall to reliably estimate usual intake.

5 0
3 years ago
Other questions:
  • 3. What was your average percent error for all three trials? In this experiment you did three trials. Why was it suggested that
    14·2 answers
  • The chart below contains characteristics that can
    12·1 answer
  • During which time interval was the motion faster?<br><br><br> I NEED HELP
    12·2 answers
  • Silicones can be oils or rubber-like materials depending on ________. Select one: A. the silicon-to-oxygen ratio B. the length o
    14·1 answer
  • Douglasite is a mineral with the formula 2KCl • FeCl2 • 2H2O. Calculate the mass percent of douglasite in a 455.0-mg sample
    11·1 answer
  • When the mass of the boron atom is calculated, the mass of the electrons is ignored. Why is the mass of the electrons ignored?
    11·2 answers
  • must undergo addition because they have easily broken π bonds. ____________ rule states in the addition of HX to an unsymmetrica
    8·1 answer
  • What is the most common element all stars are made of?
    5·2 answers
  • Help me Please! I don’t understand it
    5·1 answer
  • किसी भी व्यक्ति के पतन का क्या कारण होत है​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!