Answers: 1
Chemistry, 22.06.2019 09:30
Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?
Answers: 3
Chemistry, 22.06.2019 10:30
Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?
Answers: 3
Chemistry, 22.06.2019 14:00
Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?
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
Apples are red and if u cut it in half u have one half...
Mathematics, 02.07.2019 11:00
Mathematics, 02.07.2019 11:00
Mathematics, 02.07.2019 11:00
Mathematics, 02.07.2019 11:00
Biology, 02.07.2019 11:00
Social Studies, 02.07.2019 11:00
Mathematics, 02.07.2019 11:00
History, 02.07.2019 11:00
Geography, 02.07.2019 11:00
Spanish, 02.07.2019 11:00
Mathematics, 02.07.2019 11:00
Mathematics, 02.07.2019 11:00
Mathematics, 02.07.2019 11:00