Ok so here's how I set it up 8.04*.95/? +10 ok one last question though mass of the 95% solution I must divide is the total mass right so 18.04grams? If so I got this .42% the mass of this is .931 ok now for the final volume .931/18.04 and I got .051 aww like I was so close to the answer.
Thank you so much for the video I appreciate it so if my calculations come out correctly I should get 19.40 and then I can compare it to the 19.60 I actually measued
hey I'm sorry I meant mass not volume when I wrote this
"For ethanol it should have been 10ml* .804(because this is the density) and that should give me the volume?"
ok so my mass calculated would be 8.04 grams for ethanol
Yeah I'm sorry guys this wasn't the main focus our our lab just a small section needed. Our main question for this section was why 10ml of ethanol+10ml of water added together doesn't add up to 20ml. I just needed these calculations for a table. I'm not sure if the 95% is mass or volume I just...
Yes I also think he wants us to calculate 20 ml and compare it to the 19.60 ml we measured the problem is my calculations just aren't adding up to 20ml.
Ok I think I see how I did my volume calculations wrong. For ethanol it should have been 10ml* .804(because this is the density) and that should give me the volume? or am I still on the wrong path haha. I think my volume calculation for water was right (10 * 1(density of water). So now my total...
So we did a lab where we mixed 10 ml of 95%ethanol with 10 ml of water and the volume of the mixture we measured was 19.60 ml. Even though we know the volume of the mixture is 19.60 our teacher wants us to calculate what the volume of the mixture should have really been and compare it to what we...