Br2 5mol take a 10 mol Br atoms mol
Answer:
0.605 molal
Explanation:
molality is the amount of solute in a particular mass of solvent.
lets calculate the amount of benzene solute.
mass of benzene= 13.3g
molar mass of C6H6= 12*6 +1*6 =72+7=78g/mol
amount of benzene= mass/molar mass
=13.3/78
=0.1705mol
molality= amount of solute/mass of solvent in kg
mass of solvent=282g=0.282kg
molality = 0.1705/0.282
=0.605 molal
Pure substance, basically, it’s on the periodic table.
Scandium forms one ion, Sc3+, with an electron configuration of 1s2 2s2 2p6 3s2 3p6
<span>A. Salt lowers the freezing point of water, which makes the melted snow on the road less likely to form ice.</span>
