Mass, in grams, of 0.195 mol sucrose (c12h22o11). express your answer using three significant figures. mm = nothing g request answer part b moles of zn(no3)2 in 131.50 g of this substance. express your answer using four significant figures. nn = nothing mol request answer part c number of molecules in 8×10−6 mol ch3ch2oh. express your answer using four significant figures. nn = nothing molecules request answer part d number of n atoms in 0.650 mol nh3. express your answer using three significant figures. nn = nothing atoms