In June 2024
Answer to Question #286011 in Physical Chemistry for Dickson
A sample of K2CO3 weighing 27.6g was treated by a series of reagents so as to convert all of its carbon to potassium zinc ferrocyanide [also known as dipotassium trizinc hexacyanoferrate(II)] K2Zn3[Fe(CN)6]2. How many grams of the product were obtained?
Molar mass of K2CO3= 138.025
27.6/138.025= 0.2
Molar mass of K2Zn3[Fe(CN)6]2= 698.3224
= 0.2×698.3224=139.7g
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