Answer:
electron configuration for boron is 1s22s22p1
hope this helps :)
Explanation:
Answer:
0.218 M of Pb(NO3)2
Explanation:
Equation of the reaction
Pb(NO3)2(aq) + 2NaCl(aq) --> PbCl2(s) + 2NaNO3(aq)
1 mole of Pb(NO3)2 reacts to precipitate 1 mole of PbCl2
Molar mass of PbCl2 = 207 + (35.5*2)
= 278 g/mol
Number of moles of PbCl2 precipitated = mass/molar mass
= 12.11/278
= 0.04356 mol
Since 0.04356 moles of PbCl2 was precipitated, therefore by stoichiometry; 0.04356 moles of Pb(NO3)2 reacted.
Molarity is defined as the number of moles of solute in 1 liter of solution.
Molarity = number of moles/volumes
= 0.04356/0.2
= 0.218 M
PH=-log[ H₃O⁺] therefore [H₃O⁺]=10^-pH
[H₃O⁺]=10^-11
<span>[H₃O⁺]</span>=1.0x10^-11
Answer:
The IUPAC name of the given compound is Pent-1-ene.
Longest chain has 5 carbons and the double bond is at C-1 carbon.
Explanation: