In a chemistry lab are 2 bottles (which we can designate A and B), both labelled...

 

Transcribed Image Text:

In a chemistry lab are 2 bottles (which we can designate A and B), both labelled "indium bromide, InBr" but the solids in the bottles have different colors. You analyze samples of both solids to find the following masses of indium and bromine (and no other elements): Bottle A Bottle B Mass Indium Mass Bromine 1.39 g 2.00 g 6.26 g 3.00 g If you assume that bottle A contains indium(1) bromide of formula InBr, use the law of multiple proportions to determine the value of x of the "indium bromide, InBrx" in bottle B. Type your answer... In an atom of an element there are a fixed number of electrons. If the total mass of electrons in 1 mole (6.022 x 1023) of atoms of a certain element is 18.65 mg, how many protons must there be in the nucleus of that atom? (mass of electron = 9.109 x 10-28 g). Type your answer... Next In a chemistry lab are 2 bottles (which we can designate A and B), both labelled "indium bromide, InBr" but the solids in the bottles have different colors. You analyze samples of both solids to find the following masses of indium and bromine (and no other elements): Bottle A Bottle B Mass Indium Mass Bromine 1.39 g 2.00 g 6.26 g 3.00 g If you assume that bottle A contains indium(1) bromide of formula InBr, use the law of multiple proportions to determine the value of x of the "indium bromide, InBrx" in bottle B. Type your answer... In an atom of an element there are a fixed number of electrons. If the total mass of electrons in 1 mole (6.022 x 1023) of atoms of a certain element is 18.65 mg, how many protons must there be in the nucleus of that atom? (mass of electron = 9.109 x 10-28 g). Type your answer... Next

Answer rating: 100% (QA)

Solution of first question Given Mass Indium Mass bromine Bottle A 200 g 139 g Bottle B 300 g 626 g ... View the full answer