Question

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numero de gramos que hay en 0.25 moles de HNO3
numero de gramos que hay en 1.6 moles de sulfato de calcio
numero de gramos que hay en 2.8 moles de Na
numero de gramos que hay en 0.75 moles de acido perclorico
numero de gramos que hay en 2.2 moles de carbonato de calcio

Answer 1

a) Mm HNO3 = 63 g/mol

g = 0.258 mol HNO3  x  63 g HNO3
                                      ````````````````
                                        1 mol HNO3

g = 16.254 g de HNO3

b) Mm CaSO4 = 136.14 g/mol

g = 1.6 mol CaSO4   x  136.14 g CaSO4
                                     ````````````````````````
                                       1 mol CaSO4

g = 217.824 g CaSO4

c) Mm Na = 23 g/mol

g = 2.8 mol Na  x  23 g Na
                            ``````````````
                              1 mol Na

g = 64.4 g Na

d) Mm HClO4 = 100.45 g/mol

g = 0.75 mol HClO4  x  100.14 g HClO4
                                     ````````````````````````
                                         1 mol HClO4

g = 75.105 g HClO4

e) Mm CaCO3 = 100 g/mol

g = 2.2 mol  x  100 g
                      ``````````
                        1 mol

g = 220 g de CaCO3