Stainless steel is an alloy composed of between 11 and 30%

Last updated: 7/6/2022

Stainless steel is an alloy composed of between 11 and 30% chromium by mass. It may also contain other elements, such as nickel or manganese. The alloy is rust resistant. A stainless steel alloy is to be analyzed for its chromium content. A 6.80 g sample of the steel is used to produce 250.0 mL of a solution containing Cr₂O A 100-ml portion of this solution is added to BaCl(aq). When the pH of the solution is properly adjusted, 0.145 g BaCrO, (s) precipitates. What is the percent Cr, by mass, in the steel sample? Express your answer to three significant figures and include the appropriate units.