What's the weight percentage by weight of NaCl if 1.75g of NaCl is dissolve in 5.85g of water
Answers
Answer:
we have 75 grams of a solution, and it's 25% by Mass and a C L, which means that there's 25 g of sodium chloride per 100 g of solution. So if you want to find the grams of any CL, this will cancel out with this. When you multiply, you're just going to do 75 times 25 divided by 100 gives you 18.7 I've rounded for significant figures is 19 yeah, grams of in a cell, which means you have 75 minus 19 equals 56 grams of water. Because the 75 represents the total solution, the 19 is the salt, so the remainder has to be water. Now say that you add 500 grams of water to it. To dilute it, you're gonna be decreasing the concentration. So we should get a number less than 25% and a CEO. We'll have a total mass of water of 556 g. The initial water that you had, plus the new water. So then to find the percent by mass of N i C l. The amount of N I C. L did not change when you added the water. It's still about 19 g, and then you're gonna divide by 556 grams and multiplied by 100 percent to turn. That has more than 2% 19 divided by 5 56 times 100 gives you three point 4% by Mass. So indeed, the concentration went down quite a bit when you added that water to dilute it
Explanation: