<span>first, we have to know what is electrolyte:
The electrolyte is a substance which breaks into cations + and anions - when dissolved in water.
now, to be able to classify electrolytes we have to look for:
1) If this chemical formula is one of the 7 strong acids (which are HCl, HBr, HI,
HNO3, HClO3, HClO4 and H2SO4) if the chemical formula one of them so,
this is a strong electrolyte.
2) when the chemical formula starts with H atom It's probably a weak
electrolyte. so here HBr is a strong electrolyte as it is one of the 7 strong
acids.
and HF is a weak electrolyte as it is a weak acid.
and Zn(NO3)2 is a strong electrolyte as it is soluble in water and form ions</span>
<span>Strontium has two valence electrons therefore it will have two dots on either side. </span>
A cleaning solution with an OH⁻ concentration of 2.5 × 10⁻⁴ mol/L, has a pH of 10.4 and is basic (options b and c).
<h3>How can we determine the acidity or basicity of a solution?</h3>
- If pH < 7, the solution is acid.
- If pH = 7, the solution is neutral.
- If pH > 7, the solution is basic.
- Step 1. Calculate the pOH of the solution.
The hydroxide ion concentration is 2.5 × 10⁻⁴ mol/L.
pOH = -log [OH⁻] = log (2.5 × 10⁻⁴) = 3.6
- Step 2. Calculate the pH of the solution.
We will use the following expression.
pH + pOH = 14
pH = 14 - pOH = 14 - 3.6 = 10.4
Since pH > 7, the solution is basic.
A cleaning solution with an OH⁻ concentration of 2.5 × 10⁻⁴ mol/L, has a pH of 10.4 and is basic (options b and c).
Learn more about pH here: brainly.com/question/172153
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Explanation:
hope it make sense to u :)