How many grams of a stock solution that is 92.5 percent h2so4 by mass would be needed to make 250 grams of a 35.0 percent by mass solution? show all of the work needed to solve this problem.

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?