Question

1.26 g of AgNO3 is dissolved in H2O and the solution is diluted 250ml. what is the molarity

Answer 1

First convert 1.26g to moles:
1.26g *(mole/169.87g) = 0.007417mol
Remember that molarity is the same as mole/L:
0.007417mol *(1/250mL) * (1000mL/L) = 0.02966M