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Nickel nitrate and potassium carbonate react to form nickel carbonate and potassium nitrate.  How many milliliters of 0.55M Ni(NO3)­2 are needed to react with 85 mL of 0.25M  K2CO3?  

 Dec 4, 2017
 #1
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You should post it as an equation instead, so that it's easier to understand your question.

 Dec 4, 2017
 #3
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Solution (and precipitates):

 

\(\text {Solve and balance the equation to determine the reaction ratio. }\\ \text{ }\\ Ni(NO_3)_2 + K_2CO_3 \Rightarrow NiCO_3 + 2KNO_3 \small \text { Note that the ratio is 1:1}\\ \small \text {Determine the number of moles in the solution of 85ml with a 0.55 molar concentration of potassium carbonate. }\\ 0.25 * 85*10^{-3} L = \small \text{moles of potassium carbonate }\\ \small \text{Divide this by the 0.55 molar concentration of nickel (II) nitrate }\\ 0.02125/0.55 = 0.0386 L \\ 38.6 \text{ml} \small \text { of 0.55 molar nickel (II) nitrate } \)

 

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Easy as pealing a high potassium bananalaugh

 

 

GA

 Dec 4, 2017

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