a student dissolved 400 g of cono32 in enough water to make 100 ml of stock solution he took 400

Name: a student dissolved 400 g of cono32 in enough water to make 100 ml of stock solution he took 400 ml of the stock solution and then diluted it with water to give 275 ml of a final solution ho 21199
Uploaded: 2022-09-26T21:05:32-08:00
Duration: 3 min 37 s
Channel: Nicole Krahulik
Description: a student dissolved 400 g of cono32 in enough water to make 100 ml of stock solution he took 400 ml of the stock solution and then diluted it with water to give 275 ml of a final solution ho 21199

Question

Babita Kumari · Accepted Answer

First, we need to find the molar mass of Co(NO3)2. The molar mass of Co is 58.93 g/mol, N is 14.

Question

A student dissolved 4.00 g of Co(NO3)2 in enough water to make 100. mL of stock solution. He took 4.00 mL of the stock solution and then diluted it with water to give 275. mL of a final solution. How many grams of NO3- ion are there in the final solution?

Please give Ace some feedback