If 0.031 mg of Pb2+ was observed in 1.29 kg of solution what is the ppm?

Volume of solution = 577.83 ml (Approx)

Explanation:

Given:

% of (W/V) = 8.48%

Weight of KBr in gram = 49 gram

Find:

Volume of solution

Computation:

% of (W/V) = Weight of KBr in gram / Volume of solution

8.48% = 48 / Volume of solution

Volume of solution = 49 / 8.48%

Volume of solution = 577.83 ml (Approx)

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.