Chemistry, 19.08.2019 00:30 jfvjhsljdl
Suppose ‘solution a’ has a ph of 3, ‘solution b’ has a ph of 7, and ‘solution c’ has a ph of 10. if solution b contains 10,000,000 h + ions in a given volume, how many ions will each of solution a and solution c have in equal volumes?
Answers: 1
Chemistry, 22.06.2019 04:00
Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
Answers: 3
Chemistry, 22.06.2019 12:30
Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
Answers: 1
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Suppose ‘solution a’ has a ph of 3, ‘solution b’ has a ph of 7, and ‘solution c’ has a ph of 10. if...
Arts, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
Computers and Technology, 07.01.2021 19:00
Law, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
History, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
Mathematics, 07.01.2021 19:00
English, 07.01.2021 19:00