Explanation:
Molecular mass:
Atomic masses:
N = 14g/mol H = 1g/mol S = 32g/mol O = 16g/mol Cl = 35.5g/mol
C = 12g/mol
NH₃ = 14 + 3(1) = 17g/mol
SO₂ = 32 + 2(16) = 64g/mol
Cl₂ = 2(35.5) = 71g/mol
N₂ = 14(2) = 28g/mol
CH₄ = 12 + (4 x 1) = 16g/mol
To solve this problem;
we need to derive an equation to find the molecular mass from the given densities on the table.
At STP;
Number of moles = 
eqn (i)
Also;
Number of moles = 
eqn (ii)
Now we can equate the two equations;
=
since density is known, we have to rewrite the relationship by making molar mass the subject of the expression:
Molar mass = 
we know that;
Density = 
Molar mass = density x 22.4
Now ;
Molar mass for 1.25g/L = 1.25 x 22.4 = 28g/mol; which is for N₂
Molar mass for 2.86g/L = 2.86 x 22.4 = 64.1g/mol; which is for SO₂
Molar mass for 0.714g/L = 0.714 x 22.4 = 16g/mol; which is for CH₄
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Answer:
(d) 3,7-dimethyl-4-nonyne.
Explanation:
Hello,
In this case, considering the attached picture on which you can see that the main chain has nine carbon atoms, one tripe bond at the fourth carbon and two methyl radicals at the third and seventh carbons respectively, by following the IUPAC rules, the name would be: (d) 3,7-dimethyl-4-nonyne since the chain must start at the side closest to the first triple bond due to its priority and subsequently considering the present radicals.
Best regards.
Antacids neutralise the acid made by your stomach. They are commonly used in conditions where it is helpful to neutralise the acid made in the stomach. For example, for acid reflux which causes heartburn. Most people who take antacids do not develop any side-effects.
Answer:
As the specific heat capacity for pure diamond is 0.5091
and it is different from the specific heat capacity found that is 0.2699, the diamond sample is not pure.
Explanation:
1. As the problem says the equation that describes the amount of heat gained or lost by a substance is:
q=Cp*m*ΔT
where q is the amount of heat, Cp is the specific heat capacity, m is the mass and ΔT is the change in the temperature.
2. Solving for specific heat capacity:
3. Replacing values:
As the specific heat capacity for pure diamond is 0.5091 and it is different from the specific heat capacity found that is 0.2699, the diamond sample is not pure.
