Chemistry, 28.08.2019 15:30 fireman59937
Asample of a gas is contained in a closed rigid cylinder. according to kinetic molecular theory, what occurs when the gas inside the cylinder is
heated?
(1) the number of gas molecules increases.
(2) the number of collisions between gas molecules per unit time decreases.
(3) the average velocity of the gas molecules increases.
(4) the volume of the gas decreases.
Answers: 2
Chemistry, 22.06.2019 10:00
3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?
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, 23.06.2019 01:20
Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)
Answers: 1
Asample of a gas is contained in a closed rigid cylinder. according to kinetic molecular theory, wha...
Biology, 03.10.2021 05:20
Mathematics, 03.10.2021 05:20
Mathematics, 03.10.2021 05:20
Mathematics, 03.10.2021 05:20
Mathematics, 03.10.2021 05:20
Mathematics, 03.10.2021 05:20
Physics, 03.10.2021 05:20
Computers and Technology, 03.10.2021 05:20
Mathematics, 03.10.2021 05:20
Mathematics, 03.10.2021 05:20