Chemistry, 10.07.2019 07:00, bellebug6208
Which is not a step in most scientific investigations? 1. proving a theory and writing a new scientific law 2. observing and experimenting to test a hypothesis 3. developing a hypothesis to explain collected data 4. collecting data through observation and measurement
Answers: 2
Chemistry, 21.06.2019 18:30, mimithurmond03
A6.10 m nacl can be made by adding [x]g of nacl to a container and making the volume of water up to the 1.00 l line
Answers: 1
Chemistry, 22.06.2019 08:00, anglacx5465
Why are pipes bursting in the in extremely cold weather?
Answers: 2
Chemistry, 22.06.2019 10:30, kdenormandie3122
Geothermal energy for industrial use is available almost anywhere. a. true b. false
Answers: 2
Chemistry, 22.06.2019 18:00, kingamir
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
Which is not a step in most scientific investigations? 1. proving a theory and writing a new scien...
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