Question

When Zinc chloride (ZnCl2) reacts with NH3 solution a white crystalline compound Zn(NH3)nCI2 is produced. A student used the procedure in this module to determine the mass percent of NH3 in Zn(NH3)nCl2) The student added 25.00 ml of 0.2500 M HCl soution to an aqueous solution containing 0.3724 g of Zn(NH3)nCl2. The excess HCl required 18.80 ml of 0.1000 M NaOH solution for complete titration. the student also found that the mass percentage of Zn in the sample is 38.38%. What is the value of n in the empirical formula for Zn(NH3)nCl2?​

Answer 1

Answer:

महेश की आयु महेश की वर्तमान आयु उसके पुत्र की 4 गुनी है। 10 वर्ष बाद महेश की आयु उसके पुत्र की आयु की दुगुनी होगी। उसके पुत्र की आयु ज्ञात कीजिए?

Explanation:

When Zinc chloride (ZnCl2) reacts with NH3 solution a white crystalline compound Zn(NH3)nCI2 is produced. A student used the procedure in this module to determine the mass percent of NH3 in Zn(NH3)nCl2) The student added 25.00 ml of 0.2500 M HCl soution to an aqueous solution containing 0.3724 g of Zn(NH3)nCl2. The excess HCl required 18.80 ml of 0.1000 M NaOH solution for complete titration. the student also found that the mass percentage of Zn in the sample is 38.38%. What is the value of n in the empirical formula for Zn(NH3)nCl2

Answer 2

Explanation:

When zinc chloride (ZnCl2) reacts with NH3 solution, a white crystalline compound Zn(NH3)nCl2 is produced. A student used the same procedure as the one you used to analyze Ni(NH3)nCl2 to determine the mass percent of NH3 in Zn(NH3)nCl2. The student added 25.00 ml of 0.2500 M HCl solution to an aqueous solution containing 0.3145 g of Zn(NH3)nCl2. The excessHCl required 25.60 ml of 0.1000 M NaOH solution for complete titration. Calculate the mass percent of NH3 in Zn(NH3)nCl2 based on the student.