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sergey [27]
3 years ago
12

7. What is the volume of 64.0 g of benzene?

Chemistry
1 answer:
erastova [34]3 years ago
5 0

Answer:

Volume of benzene is 73.23 mL.

Explanation:

Given data:

Volume of benzene = ?

Mass of benzene = 64.0 g

Solution:

The given problem will be solved through density formula.

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

The value of density of benzene in literature is 0.874 g/mL.

0.874 g/mL = 64.0 g/ v

v = 64.0 g/0.874 g/mL

v = 73.23 mL

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  The  percent   yield  of  this   reaction  is  calculated  as  follows
  Mg3N2  +  3H2O  =2NH3  +  3Mgo

  calculate  the   theoretical  yield,
moles=mass/molar  mass
moles Mg3N2=  3.82  g/100g/mol=  0.0382  moles(limiting  regent)

moles of  H2o=  7.73g/18g/mol  = 0.429  moles ( in  excess_)

by  use   of  mole  ratio   between  Mg3N2  to  MgO  which  is  1:3   the    moles  of MgO =  0.0382  x3  = 0.1146  moles
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3 0
3 years ago
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The solid anhydrous solid CoCl2 is blue in color. Because it readily absorbs water from the air, it is used as a humidity indica
MrRissso [65]

Answer:

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Hence electronic configuration of Co^{2+} ion in this octahedral geometry is t_{2g}^{5}e_{g}^{2} with total three unpaired electrons.

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<h3>pH calculations</h3>

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Next, due to the fact that hydrochloric acid is a strong acid, we realize its concentration is nearly the same to the released hydrogen ions to the solution upon ionization. Thereby, the resulting pH is:

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Hey there!

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6 0
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