0.838g
to make the reaction and associated calculations more complicated
a displacement reaction, magnesium displaces hydrogen because it is more reactive
These two substances readily react to produce magnesium chloride and hydrogen gas, The reaction equation is Mg(s)+ 2HCl(aq) = MgCl2(aq) + H2(g)
Need moles MgCl2 75.0 grams MgCl2 (1 mole MgCl2/95.21 grams) = 0.7877 mole MgCl2 ================now, Molarity = moles of solute/Liters of solution ( 500.0 milliliters = 0.5 Liters ) Molarity = 0.7877 moles MgCl2/0.5 Liters = 1.58 M MgCl2 solution --------------------------------
MgCl2 is formed. Mg2+ + 2Cl- ----> MgCl2
Magnesium chloride is formed in solution and hydrogen is released.
to make the reaction and associated calculations more complicated
yes mgcl2 is aqous solution
a displacement reaction, magnesium displaces hydrogen because it is more reactive
MgCl2 and Li are the reactants.
These two substances readily react to produce magnesium chloride and hydrogen gas, The reaction equation is Mg(s)+ 2HCl(aq) = MgCl2(aq) + H2(g)
Need moles MgCl2 75.0 grams MgCl2 (1 mole MgCl2/95.21 grams) = 0.7877 mole MgCl2 ================now, Molarity = moles of solute/Liters of solution ( 500.0 milliliters = 0.5 Liters ) Molarity = 0.7877 moles MgCl2/0.5 Liters = 1.58 M MgCl2 solution --------------------------------
MgCl2 is formed. Mg2+ + 2Cl- ----> MgCl2
No reaction
Molarity = moles of solute/Liters of solution ( 20.0 ml = 0.02 Liters ) moles of solute = Liters of solution * Molarity 0.02 Liters * 0.800 M MgCl2 = 0.016 moles MgCl2 -------------------------------
mg+Hcl----------->mgcl2 + H2 You could see bubble in the solution while reacting. After the reaction the reactant will just become a colourless solution
Al(s) + MgCl2(aq) ==> no reaction or a very slow reaction. The reason being that Mg is more reactive than Al so Al will not readily displace/replace Mg. If the reaction occurs, it will be 2Al(s) + 3MgCl2(aq) ==> 2AlCl3(aq) + 3Mg(s)