How many mL Hydrochloric acid of 0.1 M must be added to 100 mL of a 0.2 M solution of tris base to form a buffer ( pH 7.8)? Determine what would be the final tris concentration?
Half-life of Phosphorus-32=14.0 days calculate how many grams will remain after 98.0 days if Starts with 6.00g of 32 P rm ^{32}P, ?