What mass of precipitate can form if 1.5 L of a saturated solution of Pb(NO3)2 is mixed with 0.765 L of a 0.205 M NaI solution?

Explanation:

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In this case, since the chemical reaction that takes place when Pb(NO3)2 and NaI are mixed is:

By which a solid precipitate of PbI2  is produced. In such a way, since we know the volume and molarity of NaI, we can compute the moles of NaI as shown below:

Next, since it is in a 2:1 mole ratio with PbI2 (molar mass = 461.01  g/mol) we compute the mass of PbI2  precipitate as shown below:

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answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

the solar system used to have much dust particles option no d