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antoniya [11.8K]
3 years ago
14

A hydrate of iron (ii) sulfite is known to contain 44.26% mater. what is the correct name of the hydrate

Chemistry
1 answer:
stellarik [79]3 years ago
6 0
The correct name of the  hydrate iron (ii) sulfite  is  iron(ii)sulfite  heptahydrate
it is gotten  as below

find the % composition  of  FeSO4  = 100-44.26 =55.74 %

find the mole of FeSO4 and  H20
= % composition/molar mass

FeSo4 =55.74/151.9 = 0.367  moles
H2O = 44.26/18 =2.459  moles

find  the mole ratio  by diving   each mole  with smallest mole
FeSO4 = 0.367/0.367 = 1
H2O = 2.459/0.367 = 7

therefore the name is iron (ii) sulfite  heptahydrate is it has  seven water  molecules
  
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Answer:

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Metals are:

Shiny

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Mostly silver or gray in color

Mostly solids at room temperature – Mercury (Hg) is a liquid at room temperature

Malleable – able to be hammered into a thin sheet

Ductile – able to be drawn/pulled into a wire

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Nonmetals are:

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Metalloids are:

Found on the “zig-zag” line on the Periodic Table of Elements

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Reccomend this site for questions llike these: https://ptable.com/#Properties

7 0
3 years ago
Consider the balanced equation for the following reaction:
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<u>Answer:</u> The theoretical yield of the lithium chlorate is 1054.67 grams

<u>Explanation:</u>

To calculate the mass for given number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Actual moles of lithium chlorate = 9.45 moles

Molar mass of lithium chlorate = 90.4 g/mol

Putting values in above equation, we get:

9.45mol=\frac{\text{Actual yield of lithium chlorate}}{90.4g/mol}\\\\\text{Actual yield of lithium chlorate}=(9.45mol\times 90.4g/mol)=854.28g

To calculate the theoretical yield of lithium chlorate, we use the equation:

\%\text{ yield}=\frac{\text{Actual yield}}{\text{Theoretical yield}}\times 100

Actual yield of lithium chlorate = 854.28 g

Percentage yield of lithium chlorate = 81.0 %

Putting values in above equation, we get:

81=\frac{854.28g}{\text{Theoretical yield of lithium chlorate}}\times 100\\\\\text{Theoretical yield of lithium chlorate}=\frac{854.28\times 100}{81}=1054.67g

Hence, the theoretical yield of the lithium chlorate is 1054.67 grams

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Two sound waves are emitted from identical sources at the same time. They each travel a distance of 10 m, but one wave reaches t
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<em>Varying frequency</em> between both waves accounts for difference in speed.

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Assuming equal temperature and medium of travel of these sound waves, and given that the wavelength (that is distance of travel) is equal, the only varying factor would be their frequency.

Wave speed is calculated by multiplying the wavelength times the frequency

⇒ Speed = λ * <em>f</em>

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