Which solution has the greatest osmolarity?
0.6 M NaCl
0.10 M KNO3
0.35 M AlCl3
0.2 M CaBr2
0.14 M KF

Explanation:

Osmolarity is the number of moles of particles that count to calculate the osmotic pressure, in one liter of solution.

In ionic compounds, your first calculate the molarity and then multiply it by the factor to calculate the number of particles product of the dissociation.

The factor is the number of ions produced per mole of compound.

Assuming 100% dissociation for the given solutions, the calculations are:

Solution                 Ionization     Factor            Osmolarity

0.6 M NaCl             Na⁺ + Cl⁻          2                 0.6 × 2 = 1.2          

0.10 M KNO₃           K⁺ + NO₃⁻        2                 0.10 × 2 = 0.20

0.35 M AlCl₃           Al⁺ + 3Cl⁻         4                 0.35 × 4 = 1.4

0.2 M CaBr₂           Ca²⁺ + 2Br⁻      3                  0.2 × 3 = 0.6

0.14 M KF                K⁺ + F⁻             2                  0.14 × 2 = 0.28

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: