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
Alex787 [66]
3 years ago
6

Calculate the percentage of water in the hydrate manganese (ii) nitrate tetrahydrate

Chemistry
2 answers:
IRISSAK [1]3 years ago
8 0

Answer:

Divide the mass of the water lost by the mass of hydrate and multiply by 100.

Explanation:

i think

Neporo4naja [7]3 years ago
7 0

Answer:

28.7%

Explanation:

First let us write the formula of manganese (ii) nitrate tetrahydrate. This is shown below:

Mn(NO3)2.4H2O

The molar mass of Mn(NO3)2.4H2O = 55 + 2[14 + (3x16)] + 4[(2x1) + 16]

= 55 + 2[14 + 48] + 4[2 + 16]

= 55 + 2[62] + 4[18]

= 55 + 124 + 72

= 251g/mol

Mass of water of crystallization in Mn(NO3)2.4H2O = 4H2O

= 4[(2x1) + 16]

= 4[2 + 16]

= 4[18]

= 72g

The percentage by mass of water of crystallization in manganese (ii) nitrate tetrahydrate Mn(NO3)2.4H2O, is given by:

Percentage of water of crystallization = Mass of water of crystallization / Molar Mass of Mn(NO3)2.4H2O x 100

= 72/251 x 100

= 28.7%

Therefore the percentage of water of crystallization in manganese (ii) nitrate tetrahydrate is 28.7%

You might be interested in
How do you calculate metal density?
nekit [7.7K]

Answer:

You can divide the mass by the volume to calculate the density of the metal

Explanation:

7 0
2 years ago
What causes the properties of elements in a group to be similar?
77julia77 [94]
They have similar properties because they have the same number of valence electrons
8 0
3 years ago
The number of proton, neutrons and electrons in oxygen atom
Ksenya-84 [330]

Answer:

in an oxygen atom there are:

protons:8

electrons:8

neutrons:8

Explanation:

this is because the atomic number of oxygen is 8 and that is the proton number and the electron number is the same as the atomic number

4 0
3 years ago
How many liters would you need to make a 0.8 M solution with 20 grams of lithium chloride?
worty [1.4K]

Answer:

0.5875L

Explanation:

concentration = mole/ volume

n(LiCl) = 20 / (7 + 35.5) = 0.47 mol

volume = mole / conc.

volume = 0.47 /0.8

= 0.5875 dm³ = 0.5875L

5 0
3 years ago
What is the meaning of<br> 3 CO2 in a chemical reaction?
puteri [66]

Three is simply the coefficient which tells you the amount of molecules. In this case, there are three carbon dioxide molecules. If you want to break it down further, it also means there is three carbon atoms and six oxygen atoms.

I hope this helps.

7 0
3 years ago
Other questions:
  • The law of mass action suggests that _____.
    10·1 answer
  • A gene or trait that appears or expresses itself over a recessive trait is called A. a mutation. B. an influential gene. C. a do
    9·1 answer
  • What is the type of bond holding hydrogen and oxygen atoms together in a single h2o molecule? What is the type of bond holding h
    11·1 answer
  • Please please help me
    12·1 answer
  • How many moles are in 1.82 x 10^20 atoms of silver?
    13·1 answer
  • the electron configuration of an element in its ground state is illustrated above. which, if any, of the three principles that d
    15·1 answer
  • C3H8 (g)+ 502 (g)  3CO2 (g) + 4 H2O (g) + 531 kcal
    7·1 answer
  • What is neutralisation??​
    5·1 answer
  • A sample of a gas in a 4 L container at 300 K has a pressure of 1 atm. If the temperature is increased to 600 K and the volume i
    10·1 answer
  • What volume of a 3.95 M
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!