Chemistry, 25.08.2020 20:01 tamiyahtapp
Why is it important to describe the reference frame you are using when sharing information about position and motion?
Answers: 1
Chemistry, 22.06.2019 02:10
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (Ξ΄ch< (c14h10,s)=β7061 kj molβ1.)
Answers: 3
Chemistry, 22.06.2019 14:00
650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal
Answers: 2
Chemistry, 22.06.2019 18:00
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]
Answers: 1
Chemistry, 22.06.2019 19:00
Which change to the system wood cause the freely-moving piston to lower?
Answers: 1
Why is it important to describe the reference frame you are using when sharing information about pos...
History, 26.01.2021 19:00
English, 26.01.2021 19:00
Mathematics, 26.01.2021 19:00
Business, 26.01.2021 19:00
Mathematics, 26.01.2021 19:00
English, 26.01.2021 19:00
Mathematics, 26.01.2021 19:00
Mathematics, 26.01.2021 19:00