can some one please help me please

Chemistry
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1,A solution is made by dissolving 5.37 g of MgCO3 into enough water to make 575 mL of solution. What is the molarity of the solution? 

write wheter it is physcal or chemical change

Alcohol evaporates. 
 Dynamite explodes. 
Hydrogen and oxygen react to form water. 
 Nitrogen dioxide is produced when copper is added to nitric acid. 

Natural gas burns in a furnace . 

Apr 5th, 2015

Alcohol evaporates. .....................physical change

Dynamite explodes. ......................chemical change

Hydrogen and oxygen react to form water. ..........chemical change

Nitrogen dioxide is produced when copper is added to nitric acid. ............chemical change

Natural gas burns in a furnace .............chemical and physical change

Apr 5th, 2015

Solution stoichiometry calculations involve chemical reactions taking place in solution. 

Of the various methods of expressing solution concentration the most convenient for general laboratory use is molarity, which is defined: 

 Moles of solute nsolute Molarity = or M = Liters of solution L soln

Chemical reactions are written in terms of moles of reactants and products; this molarity concentration unit relates moles of solute to volume of solution. Thus, easily measured solution volumes provide a simple method of measuring moles of reactants.

Apr 5th, 2015

no please i taking about the solving problem                               ,A solution is made by dissolving 5.37 g of MgCO3 into enough water to make 575 mL of solution. What is the molarity of the solution? 


Apr 5th, 2015

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