Mixture calculation task?
Hey, I've just been scheduled for an exam tomorrow via MM, but I can't get past the question. Can anyone help me? Task: How many kg of sulfuric acid w(H2SO4) = 96% must be mixed with sulfuric acid w(H2SO4) = 24% to produce 160 kg of sulfuric acid w(H2SO4) = 42%? (40kg) I am currently…
Where is the error here (TMS Quanti)?
According to the solutions, D would be correct My approach to the solution was that the amount of liters is inversely proportional to the bacterial concentration, which is why I used the formula for antiproportionality. ⇒ The more L, the lower the bacterial concentration But my concentration for A (should be the same as with…
Calculate percentage share?
Good evening, I have this chemistry problem that I can't solve. Unfortunately, I don't know which approach to take. Can someone help me? Thanks in advance. 4.22 g of a mixture of CaCl^2 and NaCl were dissolved and treated with Na^2 Co^3- solution, so that the Ca^2+ ions were completely precipitated as CaCO^3. After the…
Mixing cross help?
I don't understand this math problem 🙁 please help me What volume of 0.9% NaCl solution must be mixed with what volume of water to produce 5 ml of a 0.4% solution?
Exercise in mixture calculation?
Hey, I urgently need help with the following question!! You mix 300 ml of 0.40 molar sulfuric acid with 500 ml of 2 molar sulfuric acid. This yields 1036 g of a mixture with a density of 1.07 kg/dm3. a) Calculate the mass fraction of sulfuric acid in the resulting solution! b) How many grams…
Mixing task: Determine ratio?
Hi everyone, the important result is D. However, I'm not quite sure how to proceed. I wanted to add up the existing ml first, and that gives me 800 ml. And the mixed solution has a ratio of 1:9, so that means we have 10 parts in total, right? But should I use the existing…