Achemist weighed out 5.14 g of a mixture containing unknown amounts of bao (s) and cao (s) and placed the sample in a 1.50-l flask containing co2 (g) at 30.0 oc and 750. torr. after the reaction to form baco3 (s) and caco3 (s) was completed, the pressure of co2 (g) remaining was 230. torr. calculate the mass percentages of cao (s) and bao (s) in the mixture. 86.6 % bao; 13.4 % cao

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]

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

What are the similarities between compounds and mixtures?