Question

1- Calculate the following: A- Number of moles in 10 gram of Cr(NO3). B- Number of Atoms in 10 gram of Cr(NO3). C- Number of
3. How many gram of Oxygen is in 10 gram of C (NO3),? 4- Find the empirical formula of a compound with the following composit
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Answer #1

Moleculae mass of GolN03)3 - 3 52+ 3462) 3 238g/molen No of moles = mass Molecular mass log = 0.042 mole E - 238g 1 mol 1 molIn KBr 07. KBYO. .Molos mass of KBxb2 = 39+80+ zlich 32319/mol. yok = No.of_atoms of_kx_atosuc mees of i Molecular mase of K

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