To prepare a solution of 50 wt% hso, a dilute waste acid containing 28 wt%hs0. is fortified with a purchased acid containing 96 wt% h2so4. i. draw a flow sheet to represent this process ii. write a differential mass balance on the total and sulfuric acid balance and calculate how many kilograms of the purchased acid must be bought for each 100 kg of dilute acid.

lithosphere and asthenosphere

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg

i have no clue hope you find the answer