Which of the following BEST states the Law of Conservation of Matter? Your

B. The total mass of the reactants in a reaction is double the total mass of the product(s).

C. The total mass of the reactants in a reaction is less than the total mass of the product(s).

D. The total mass of the reactants in a reaction is greater than the total mass of the product(s).

What happens when an acid dissolves?

Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?