Asked by Anonymous
Determine the amount concentration of potassium ions and dichromate ions in a solution made by dissolving 44.7 g of potassium dichromate to make a volume of 205 mL. Include the balanced chemical equation.
Answers
Answered by
DrBob222
There is no equation.
K2Cr2O7 ==> 2K^+ + Cr2O7^-2
moles K2Cr2O7 = grams/molar mass
Substitute and solve for moles K2Cr2O7.
M K2Cr2O7 = moles K2Cr2O7/L solution.
Substitute and solve for M K2Cr2O7.
Then (K^+) = 2*K2Cr2O7.
(Cr2O7^-2) = 1*K2Cr2O7
K2Cr2O7 ==> 2K^+ + Cr2O7^-2
moles K2Cr2O7 = grams/molar mass
Substitute and solve for moles K2Cr2O7.
M K2Cr2O7 = moles K2Cr2O7/L solution.
Substitute and solve for M K2Cr2O7.
Then (K^+) = 2*K2Cr2O7.
(Cr2O7^-2) = 1*K2Cr2O7
Answered by
Anonymous
thanks so much man
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