A compound containing Na, C, and O is found to have 1. 06 mol Na, 0. 528 mol C, and 1. 59 mol O. What is the empirical formula of the compound?

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

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]

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %