I just can\'t understand these. Please someone help me with one or two at least?
ID: 850652 • Letter: I
Question
I just can't understand these. Please someone help me with one or two at least?! Thanks! If you have a 6M hydrochloric acid solution and you want at 1M solution in 1L. How much concentrated HC1 do you need? If you have a 5M solution of nick acid and if you dilute 20ml in 1L solution, what is the molarity of the solution? If you have I0M solution of acetic acid and you want a 2M solution in 3L. How much of the 10M solution do you need to add? 6. If you have a 3M solution of sodium hydroxide and you want a 0.5M solution in 2L, how much of the original solution do you need? If you begin with a 3M solution of ammonium hydroxide and you decant 37ml into a IL of water, what is the new molarity? If you begin with a 4M solution of calcium hydroxide and you decant 22mL and you final solution is at 0.25M How much water did you add the 22ml. to? If you have a solution at 1M sodium hydroxide and then final molarity is 0 5M in 2 L, how much of the original solution did you add to the 21?
Explanation / Answer
2) M1V1 = M2V2
6**V1 = 1* 1Lt
V1 = 1/6 = 0.166 lt
we required 0.166 lt of 6M HCl
3)
M1V1 = M2V2
5*20ml = M2*1000ml
M2 = 0.1M
4)
M1V1 = M2V2
10*V1 = 2*3
V1 = 0.6 lt or 600 ml
we required 0.6 lt or 600 ml