What is the predictided change in the boiling point of water when 1.5 g of barium chloride (bacl2) is dissolved in 1.5 kg of water

0.0074 °C.

Explanation:

ΔTb = i.Kb.m,

where, ΔTb is the elevation in boiling water.

i is van 't Hoff factor, The van 't Hoff factor is the ratio between the actual concentration of particles produced when the substance is dissolved and the concentration of a substance as calculated from its mass. For most non-electrolytes dissolved in water, the van 't Hoff factor is essentially 1.

i for BaCl₂ = 3/1 = 3.

Kb is the molal elevation constant of water (Kb = 0.512 °C/m).

m is the molality of the solution.

m = (no. of moles of BaCl₂)/(mass of water (kg)) = (mass/molar mass of BaCl₂)/(mass of water (kg)) = (1.5 g/208.23 g/mol)/(1.5 kg) = 0.0048 m.

∴ ΔTb = i.Kb.m = (3)(0.512 °C/m)(0.0048 m) = 0.0074 °C.

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each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i