Answer:
CaO - inorganic
C₂H₄(OH)₂ - organic
Ca(OH)₂ - inorganic
CH₄ - organic
NaCl - inorganic
C₃H₈ - organic
Explanation:
Organic compounds have carbon (C) in it.
For example, CaO has calcium and oxygen, but no carbon so it's an inorganic compound. However, C₂H₄(OH)₂ does have carbon, making it an organic compound.
Answer:
Explanation:
Given data:
A) Moles of H₂O₂ = 7.00
Mass of H₂O₂ = ?
Solution:
Number of moles = mass/ molar mass
Now we will rearrange this formula:
Mass = Number of moles × molar mass
Mass = 7.00 mol × 34 g/mol
Mass = 238 g
B) Moles of NaOH = 5.60 mol
Mass of NaOH = ?
Solution:
Number of moles = mass/ molar mass
Now we will rearrange this formula:
Mass = Number of moles × molar mass
Mass = 5.60 mol × 40 g/mol
Mass = 224 g
C) Moles of Ca(CN)₂ = 0.780
Mass of Ca(CN)₂ = ?
Solution:
Number of moles = mass/ molar mass
Now we will rearrange this formula:
Mass = Number of moles × molar mass
Mass = 0.780 mol × 92.11 g/mol
Mass = 71.85 g
q = mCΔT
The correct specific heat capacity of water is <em>4.187 kJ/(kg.K)</em>.
ΔT = q/mC = 87 kJ/[648.00 kg x 4.187 kJ/(kg.K)] = 87 kJ/(2713 kJ/K) = 0.032 K
Tf = Ti + ΔT = 298 K + 0.032 K = 298.032 K
Answer:- Formula of the hydrate is and it's name is Iron(III)sulfate pentahydrate.
Solution:- As per the given information, there is 18.4% water in the hydrate. If we assume the mass of the hydrate as 100 grams then there would be 18.4 grams of water and 81.6 grams of Iron(III)sulfate present in the hydrate.
Molar mass for Iron(III)sulfate is 399.88 gram per mol and the molar mass for water is 18.02 gram per mol.
We will calculate the moles of Iron(III)sulfate and water present in the compound on dividing their grams by their molar masses as:
=
=
Now, the next step is to calculate the mol ratio and for this we divide the moles of each by the least one of them means whose moles are less. Here, the moles of Iron(III)sulfate are less than moles of water. So, we divide the moles of each by 0.204.
= 1
= 5
There is 1:5 mol ratio between Iron(III)sulfate and water. So, the formula of the hydrate is and the name of the hydrate is Iron(III)sulfate pentahydrate.
Answer:
Solid : The intermolecular space is very less
Liquid : The intermolecular space is fairly more than in solids
Solid : It has a fixed shape
Liquid : It has a fixed volume but shape changes according to where it is placed
Solid : eg : Books
Liquid : eg : water
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