Question

STOCHIOMETRY TIPS
Also Molarity,molality

Answer 1

Hey Friends,
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Almost all stoichiometric problems can be solved in just four simple steps:

Balance the equation.

Convert units of a given substance to moles.

Using the mole ratio, calculate the moles of substance yielded by the reaction.

Convert moles of wanted substance to desired units.

A molality is the number of moles of solute dissolved in one kilogram of solvent.

Molarity is the number of moles of a solute dissolved in a liter of solution. 

Molarity = moles/litres
100cm3 = 0.1dm3
Molarity = 0.15/0.1 = 1.5 M


Hope it's help you!!!!
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Answer 2

molality=number of moles of solute÷number of kilogram of solvent ., molality is temperature independent because mass is temperature independent
molarity=number of moles of solute÷volume of solution
stoitiometry is a quantitative chemistrythat deals with balancing chemical equations
u can convert a mass of reactant into mass of product by using following steps