Who are the last five people to host the Oscars This compound is also known as Copper(II) Bromide. Molar mass of CuBr2 = 223.354 g/mol. The percent composition for CuBr2 is: Cu= 28.45% Br= 71.55% Why is saw dust used in refractive index of liquid experiment. So, you would first start by finding the molar mass of CuBr2. The percentage composition of CuBr2, which is also known as copper (II) bromide is 29.45 percent copper and 71.54 percent bromine. Chemistry The Mole Concept Percent Composition. After taking the molar mass, you can start solving for percent compositions. Molecular weight calculation: 63.546 + 79.904*2 ›› Percent composition by element How can I find the percent compositions of CuBr2? The percent composition for CuBr2 is: Cu= 28.45% Br= 71.55% Asked in Chemistry , Periodic Table , Elements and Compounds Mass of Cu: 63.546 Mass of Br: 79.904 So you take the molar mass: 1(63.546) + 2(79.904) = 223.354 (Remember there’s a 2 in front of the of Br due to its subscript.) What is the percent composition for CuBr2? 1 Answer anor277 May 14, 2018 Just ... See all questions in Percent Composition Impact of this question. ›› CuBr2 molecular weight. Convert grams CuBr2 to moles or moles CuBr2 to grams. How can I find the percent compositions of CuBr2?

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