Question
In: Chemistry
What mass (in grams) of cobalt(II) nitrate hexahydrate is needed to make 100.0mL of 0.10M cobalt(II)...
What mass (in grams) of cobalt(II) nitrate hexahydrate is needed to
make 100.0mL of 0.10M cobalt(II) nitrate solution?
Solutions
Expert Solution
moles of cobalt(II) nitrate solution = molarity x volume
= 0.10 x 100 / 1000
= 0.01
Molecular Weight cobalt(II) nitrate hexahydrate = 291.03 g / mol
moles = mass / molar mass
mass = moles x molar mass
= 0.01 x 291.03
= 2.91 g
mass of cobalt(II) nitrate hexahydrate = 2.91 g
queen_honey_blossom answered 1 year agoRelated Solutions
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What mass in grams of a 10.0% by mass aqueous silver nitrate solution must be added...
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