Eramt solid potassium chlorate decomposes into solid potassium chloride and oxygen gas. write reaction with phase labels. how many grams of oxygen is produced if 0.200 l of oxygen is collected over water at 27.0 °c and 765 torr. how many grams of solid potassium chlorate required to produce the oxygen?

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

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]

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as