Answer:
What do you mean need more details
Explanation:
Answer:
0.25M
Explanation:
The formula of concentration is c=m/M•V
c=1.85g/74g.mol•0.10L
c=0.25 M
Answer:
bipetal
Explanation:
this is because 2 electrons will be donated by each element, as seen in NO2
Answer:
0.03586
Explanation:
Given data
2M solution means 2 moles of Cacl2 in 1 L of solution.
mass of solution = 1000mL×1.17 g/mL= 1170g
mass of CaCl2= 2mole×111 g/mol =222g
mass of water= 1170-222=968g
moles of water= 968/18= 53.77 moles
mole fraction of CaCl2=
mole fraction of CaCl2=
=0.03586