In: Chemistry
Calculate the grams of K2CO3 required to prepare 510.0 mL of a 0.777 g/L K+ solution. [Answer in 4 SF].
0.777 g/L K+ solution means 0.777g of K+ present in 1L of solution
1L of solution contains 0.777g of K+
1000ml of solution contains 0.777g of K+
510ml of solution contains = 0.777*510/1000 =0.39627 g of K+
2*39g of K+ obtain from 138g of k2CO3
0.39627G OF k+ obtain from= 138*0.39627/2*39 = 0.701g of K2CO3