M
MissRKat
Guest
1. How many molecules will there be in 1.0 g of ATP, formula C10H16N5O13P3?
2. How many cm3 of concentrated H2SO4 (19 M) are required to prepare 2½ dm3 0.05 M H2SO4?
3. 2 dm3 of 2 M copper(II)nitrate (Cu(NO3)2) solution contains:
1. 4 mol dm-3 Cu2+
2. 4 mol NO3-
3. 12 mol of ions
4 . A student obtained 60 g Na2SO4 from 40 g NaOH and 80 g H2SO4. What was the % yield?
5 . KCl (1.4720 g) was made up to 250 cm3 solution. 25 cm3 reequired 21.13 cm3 AgNO3 for titration
KCl + AgNO3 -> AgCl + KNO3
The molarity of the AgNO3 is:
2. How many cm3 of concentrated H2SO4 (19 M) are required to prepare 2½ dm3 0.05 M H2SO4?
3. 2 dm3 of 2 M copper(II)nitrate (Cu(NO3)2) solution contains:
1. 4 mol dm-3 Cu2+
2. 4 mol NO3-
3. 12 mol of ions
4 . A student obtained 60 g Na2SO4 from 40 g NaOH and 80 g H2SO4. What was the % yield?
5 . KCl (1.4720 g) was made up to 250 cm3 solution. 25 cm3 reequired 21.13 cm3 AgNO3 for titration
KCl + AgNO3 -> AgCl + KNO3
The molarity of the AgNO3 is: