(C) NaNO3
Cant be A,B,orD not suitable
The answer is (3) HCl. The definition of electrolyte is a substance which forms ion in an aqueous solution. Usually it is an ionic compound. While CCl4, C2H6, and H2O are covalent compounds.
Kinetic energy, form of energy that an object or a particle has by reason of its motion
Answer:
Explanation:
In the figure attached, I have numbered the carbon atoms to permit to count them easily.
<u>1. Carbon atoms</u>
Each vertex without a letter represents a carbon atom:
- Count them: 17 (they are numbered on the figure attached)
<u>2. Hydrogen atoms</u>
For each carbon subract 1 for each bond and subtract 1 for each group attached to it:
- Carbon 1: 4 - 2 = 2
- Carbon 2: 4 - 2 = 2
- Carbon 3: 4 - 2 = 2
- Carbon 4: 4 - 2 = 2
- Carbon 5: 4 - 4 = 0
- Carbon 6: 4 - 4 = 0
- Carbon 7: 4 - 3 = 1
- Carbon 8: 4 - 4 = 0
- Carbon 9: 4 - 4 = 0
- Carbon 10: 4 - 3 = 1
- Carbon 11: 4 - 4 = 0
- Carbon 12: 4 - 4 = 0
- Carbon 13: 4 - 3 = 1
- Carbon 14: 4 - 3 = 1
- Carbon 15: 4 - 2 = 2
- Carbon 16: 4 - 2 = 2
- Carbon 17: 4 - 4 = 0
Total H atoms attached to C atoms:
- 2 + 2 + 2 + 2 + 1 + 1 + 1 + 1 + 2 + 2 = 16
Total H atoms in all: 16 + 2 = 18
<u>3. Fluorine atoms</u>
Count them:
<u>4. Nitrogen atoms</u>
Count them:
<u />
<u>5. Oxygen atoms</u>
Count them:
<u>6. </u><em><u>Molecular formula</u></em>
<em><u /></em>
Summary:
<em>Molecular formula:</em>
Answer:
pH=4.63
Explanation:
The firt step is identify the <u>Acid</u> and the <u>conjugated base</u>:
HA <=> +
So, for this case we will have:
<=> +
Then:
HA =
=
With this in mind we can use the <u>henderson-hasselbach equation</u>:
pH = pKa + Log
We can calculate the <u><em>pKa</em></u> first
Then we can put the values in the equation:
pH = 4.2 + Log()
pH= 4.63