The solution is non-ideal for NaCl soln so ΔH3<span> is greater than the sum of ΔH</span>1<span> and ΔH</span>2. this means the forces of attraction between like molecules is greater than the forces of attraction between unlike molecules. <span>NaCl (table salt) dissolves readily in water. In solid NaCl, the positive sodium ions are attracted to the negative chloride ions. The same is true of the solvent, water; the partially positive hydrogen atoms are attracted to the partially negative oxygen atoms. While NaCl dissolves in water, the positive sodium cations and chloride anions are being stabilized by the water molecule electric dipoles. Thus, the intermolecular bonds between NaCl are broken and the salt is dissolved.</span>
Answer:
C) 100:1
Explanation:
To solve this question we must use H-H equation:
pH = pKa + log [A-] / [HA]
<em>Where pH = 7.0, pKa = 5.0, A- is proton aceptor and HA proton donor.</em>
<em />
Replacing:
7 = 5 + log [A-] / [HA]
2 = log [A-] / [HA]
100 = [A-] / [HA]
That means the ratio of proton aceptor:proton donor is:
<h3>C) 100:1</h3>
Answer:
An electron is in a region outside the nucleus, <u>has less mass than a proton and has a negative charge.</u>
Explanation:
Electrons are considered as a negatively charged particle, as they are surrounded by the kind of invisible force called the electrostatic force.
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WELL IT DEPENDS ON WHAT IT DOING IT TO BUT TRY SOLID