3.01e22 Ag+ ions is present in? options a) 85 grams of AgNO3 b) 0.85g AgNO3 c) 8.5g AgNO3 d) 18.5g AgNO3

1 Answer

8.58.5 g of AgNO_3AgNO3

Explanation:

11 mole = 6.023 xx 10^23=6.023×1023 ions
Ag^+ =Ag+= 3.01 xx 10^223.01×1022 ions

No. of moles of Ag^+ = Ag+=(3.013.01 x 10^221022 ions)/( 6.023 xx 10^236.023×1023 ions) ==

0.04990.0499 moles

Molar mass of AgNO_3AgNO3 == 169.87 g"/"mol169.87g/mol

Mass of AgNO_3AgNO3 == 0.04990.0499 moles xx 169.87 g"/"mol = 8.47 g×169.87g/mol=8.47g

AgNO_3 -> Ag^+ \ + \ NO_3^-