Chemistry, 29.10.2020 04:40, Nico8776

Explain why the value of Z gives the charge on the nucleus. What are the units of measurement?

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 08:00, celestemaria0727

What are the similarities of physical and chemical change ?

Answers: 1

continue

Chemistry, 22.06.2019 08:50, nady82

If two atoms are bonded to a central atom with no lone pairs, how will they be arranged

Answers: 3

continue

Chemistry, 22.06.2019 16:40, westball101

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg

Answers: 3

continue

Chemistry, 22.06.2019 16:50, TrueKing184

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.