Will all the lead be removed from 13.6 mL of 6.40×10-3 M Pb(NO3)2 upon addition of 14.1 mL of 0.0119 M Na2S? If all the lead is removed, how many moles of lead is this? If not, how many moles of Pb remain?
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Heavy metal ions like lead(II) can be precipitated from laboratory wastewater by adding sodium sulfide, Na2S. Will all the lead be removed from 13.6 mL of 6.40×10-3 M Pb(NO3)2 upon addition of 14.1 mL of 0.0119 M Na2S? If all the lead is removed, how many moles of lead is this? If not, how many moles of Pb remain?
Will there be lead left?
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