What is the molar mass of substance

Reference no: EM13101609

Some amount of potassium dichromate K₂CrO₇ that is , 2.335 g is dissolved in enough H₂O to prepare a solution of 500. determine the moloar concentraitions Cr₂O₇^2 and of K⁺ ?

A substance that is 22.9% Nitrogen by mass and 1 molecule contains six nitrogen atoms then What is the molar mass of this substance, express your answer in g/mol?

Reference no: EM13101609

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