Answer:
True is the correct answer.
Explanation:
Based on the calculations, the solubility of PbCrO₄ in water at at 25°C is equal to 1.4 x 10⁻⁸ M.
<h3>How to calculate the solubility of PbSO₄?</h3>
The properly balanced chemical equation for the dissociation of PbSO₄ is given by:
PbCrO₄(s) ⇆ Pb²⁺(aq) + CrO₄²⁻(aq)
Initial 0 0
Change +x +x
Equib. conc. x x
<u>Note:</u> The Ksp of PbCrO₄ at 25°C is equal to 2.0 × 10⁻¹⁶.
Next, we would set up an equation from the ICE table for its Ksp;
Ksp = [Pb²⁺][CrO₄²⁻]
2.0 × 10⁻¹⁶ = [x][x]
2.0 × 10⁻¹⁶ = x²
x = √2.0 x 10⁻¹⁶
x = 1.4 x 10⁻⁸ M.
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The interest received on a dollar invested over time is called Return on Investment (ROI
<h3>Return on Investment</h3>
It should be noted that if the dollar received today is not put into good investment it might as well be the same as the dollar received in future.
Money losses value overtime hence in other for money to have values it should be invest carefully and wisely.
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The news that i heard recent was a tragedy where gun men invaded a church and killed a lot of worshippers.
<h3>What is the story about?</h3>
The event or horror occurred in a very quite Sunday morning in a catholic church somewhere in Africa.
At the close of service and as people where about going out, gun men invaded a church and killed a lot of worshippers and only few were able to survive the attack. It was a day of morning for everyone and this is a crime against humanity that therefore needs the government to address.
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