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Xelga [282]
3 years ago
14

Is soap solution a strong, weak or non electrolyte

Chemistry
1 answer:
kramer3 years ago
4 0

Answer:

Nonelectrolytes do not dissociate into ions in solution; nonelectrolyte solutions do not, therefore, conduct electricity. ... Strong and Weak Electrolytes.

Explanation:

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A compound of carbon and hydrogen contains 92.3 percent c and has a molar mass of 78.1g/mol. What is its molecular
alekssr [168]

Answer:

C₆H₆

Explanation:

We need to find the molecular formula of a compound of carbon (C) and hydrogen (H), so what <em>we need to find out is the number of atoms of C and of  H in the molecule.</em> We know:

  • molar mass = 78.1 g/mol
  • C% = 92.3% = 92.3 g C / 100 g compound

So, in 1 mol of compound, 92.3% of the mass corresponds to Carbon:

<u>mass of C / mol of compound</u> = molar mass × C% = 78.1 g/mol × 92.3/100 = <u>72.1 g/mol</u>

<u>moles of C</u> = mass C / molar mass C = 72.1 g / 12.011 g/mol

moles of C = 6 moles of C per mol of compound

If 72.1 g in a mol of compound are Carbon atoms, the difference between the molar mass and the mass of Carbon atoms will correspond to H atoms in 1 mol of compound:

<u>mass of H / mol of compound</u> = molar mass - mass of C/mol

mass of H = 78.1 g / mol - 72.1 g /mol = <u>6.0 g/mol of compound</u>

<u>moles of H</u> = mass H / molar mass H = 6.0 g / 1.008 g/mol

moles of H = 6.0 moles of H per mol of compound

<em>So</em><em> one mol of compound has 6 moles of C and 6 moles of H.</em>

The molecular formula is then written as C₆H₆

7 0
3 years ago
2. What three states of matter do we see every day?<br> HELP PLEASEE FAST OMG
mrs_skeptik [129]
Answer: solids, liquids gases
6 0
3 years ago
Read 2 more answers
What.could.you.do.to make a chemical reaction proceed faster?
jekas [21]
By adding catalyst e.g. mno2,vanadium oxide
by increasing the temperature if it is an exothermic reaction
by also decreasing if it is an endothermic reaction

6 0
3 years ago
The volume of a fixed amount of gas is doubled, and the absolute temperature is doubled. According to the ideal gas law, how has
Vedmedyk [2.9K]
The ideal gas laws may be collectively expressed mathematically as:
PV/T = constant
Therefore, we may use this to determine the final pressure by equating the initial and final conditions:
PV/T = P * 2V / 2T
PV/T = PV/T
P = P
Therefore, the pressure is unchanged. It has stayed the same.
7 0
4 years ago
Read 2 more answers
Find the pH of a 0.010 M HNO2 solution.
lidiya [134]
Data:
Molar Mass of HNO2
H = 1*1 = 1 amu
N = 1*14 = 14 amu
O = 3*16 = 48 amu
------------------------
Molar Mass of HNO2 = 1 + 14 + 48 = 63 g/mol

M (molarity) = 0.010 M (Mol/L)


Now, since the Molarity and ionization constant has been supplied, we will find the degree of ionization, let us see:
M (molarity) = 0.010 M (Mol/L)
Use: Ka (ionization constant) = 5.0*10^{-4}
\alpha^2 (degree\:of\:ionization) = ?

Ka = M * \alpha^2
5.0*10^{-4} = 0.010* \alpha^2
0.010\alpha^2 = 5.0*10^{-4}
\alpha^2 = \frac{5.0*10^{-4}}{0.010}
\alpha^2\approx500*10^{-4}

\alpha\approx\sqrt{500*10^{-4}}
\alpha \approx 2.23*10^{-3}

Now, we will calculate the amount of Hydronium [H3O+] in nitrous acid (HNO2), multiply the acid molarity by the degree of ionization, we will have:

[ H_{3} O^+] = M* \alpha
[ H_{3} O^+] = 0.010* 2.23*10^{-3}
[ H_{3} O^+] \approx 0.0223*10^{-3}
[ H_{3} O^+] \approx 2.23*10^{-5} \:mol/L

And finally, we will use the data found and put in the logarithmic equation of the PH, thus:

Data:
log10(2.23) ≈ 0.34
pH = ?
[ H_{3} O^+] = 2.23*10^{-5}

Formula:
pH = - log[H_{3} O^+]

Solving:
pH = - log[H_{3} O^+]
pH = -log2.23*10^{-5}
pH = 5 - log2.23
pH = 5 - 0.34
\boxed{\boxed{pH = 4.66}}\end{array}}\qquad\quad\checkmark

Note:. The pH <7, then we have an acidic solution.
6 0
4 years ago
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