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
makvit [3.9K]
3 years ago
6

The number of ions in 17.1 gm of aluminum sulphate Al2 (SO4)3 =….. [Molar mass of Al2 (SO4)3 = 342 gm]

Chemistry
1 answer:
katen-ka-za [31]3 years ago
3 0

Answer:

1.51 X 10^23 ions

Explanation:

The number of ions in 17.1 gm of aluminum sulphate Al2 (SO4)3 =….. [Molar mass of Al2 (SO4)3 = 342 gm]

in one molecule of Al2(SO4)3 there are 5 ions 2 aluminum and 3 sulfate ions

in 2 molecules there are 2X5= 10 ions

in 10 molecules there are 10X5 = 50 ions

molar mass of Al2(SO4)3 = (2 X 26.98) +( 3 X 32.1) + (3 X 4 X 16.0 ) =342.gms = 17.1/342 =0.0500 moles

1  mole =6.02 X 10^23 molecules ( see Avogadros number)

0.0500 moles = 0.0500 X 6.02 X 10^23 molecules =

0.301 X 10^23 molecules = 3.01 X 10^22 molecules

We determined that each molecule of Al2(SO4)3 has 5 ions

so 3.01 X10^22 molecules have 5 X 3.01 X 10^22 ions =

15.05 X 10^22 ions = 1.51 X 10^23 ions

You might be interested in
I need three examples of objects with high density and three with low density!!
Anuta_ua [19.1K]

Answer:

For example, a suitcase jam-packed with clothes and souvenirs has a high density, while the same suitcase containing two pairs of underwear has low density. Size-wise, both suitcases look the same, but their density depends on the relationship between their mass and volume. Mass is the amount of matter in an object.

5 0
3 years ago
Read 2 more answers
HELP PLEASE!!!
Sidana [21]

Answer:

Wetlands are important features in the landscape that provide numerous beneficial services for people and for fish and wildlife. Some of these services, or functions, include protecting and improving water quality, providing fish and wildlife habitats, storing floodwaters and maintaining surface water flow during dry periods. These valuable functions are the result of the unique natural characteristics of wetlands.

5 0
3 years ago
In the essay box, compose a scientific report which includes your observations, data, and conclusions. The following questions s
timama [110]

Answer:

1. It depends what type of method you are using. if it is Height x Width x Length then it will not work for an irregular shape because it has extra pieces that would not be included.

2. The second method would work for both regular and irregular shapes because you would have to know or find out the volume of the regular shape to get the volume for the irregular shape.

3. It also depends on what you are doing, if you are doing a regular shape then use the first method, if it's an irregular shape then use the second method, if you do the maths correctly both should give you an accurate answer for what you want to achieve.

4. No, because the sugar would dissolve.

5. No, on this case the displacement method would not work because of the weight difference

Explanation:

All the answers for you!

4 0
3 years ago
What’s is the answer
julsineya [31]

Answer:

The answer is the third one which is 24 (glucose)

3 0
3 years ago
Which phrase describes radiation?
vesna_86 [32]

Answer:

the process in which energy is emitted by one object, transmitted through space, and absorbed by another

Explanation:

Radiation is energy that comes from a source and travels through space and may be able to penetrate various materials. Light, radio, and microwaves are

types of radiation that are called nonionizing.

8 0
3 years ago
Other questions:
  • The job the part does within organism is the
    11·1 answer
  • Which one is a true statement about endothermic reactions? A. I need you from an outside source is continuously being added. B.
    8·2 answers
  • Balance this equation. If a coefficient of "1" is required, choose "blank" for that box. ____CO +____ O2 → ____CO2
    11·2 answers
  • An amino acid is usually more soluble in aqueous solvent at pH extremes than it is at a pH near the isolelectric point of the am
    9·1 answer
  • 6) Andy has left a bucket of smelly cheese porridge to cool down in the
    8·1 answer
  • Coca cola is similar to tomato juice because
    11·2 answers
  • A. Explain the difference between an exothermic chemical reaction and an endothermic chemical reaction.
    10·1 answer
  • What happens when: sulphuric acid reacts with zinc.​
    5·1 answer
  • a solution k is saturated at 33 g solute in 100g solvent if a 50g solute is added to 200g solvent solution k is​
    6·1 answer
  • A sample of carbon monoxide and oxygen gasses are
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!