If 22 ml of 0.143m mgcl2 is needed to completely react 15ml of agno3 solution, what is the molarity of agno3

Explanation:

1) Write the molecular chemical equation

2) Mole ratios

3) Number of moles of MgCl₂

4) Number of moles of AgNO₃

Set a proportion, using the appropiate mole ratio and the number of moles of MgCl₂:

Solve for x:

4) Molarity AgNO₃

Round to two significant figures: 0.42 M ← answer

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).