Chemistry, 20.05.2021 21:50, wrivera32802
The percent of a solute in a solution is defined as the mas of solute in 100 grams of solution. A 20% solution of sulfuric acid contains 20% pure H2SO4 by mass and 80% pure H2O by mass. In 100 grams of H2SO4 there are 20 grams of sulfuric acid and 80 grams of water. Assume water is the solvent. If 18.0 grams of sodium sulfate are dissolved in 207.0 grams of water, what is the percent concentration of this solution?
Answers: 2
Chemistry, 22.06.2019 03:30, acaciacoats
The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.
Answers: 2
Chemistry, 23.06.2019 08:40, Riplilpeep
Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.
Answers: 1
Chemistry, 23.06.2019 11:30, amiechap12
Which of the following is a possible formula unit? (2 points) select one: a. pbo b. li2b c. al2pb3 d. clo
Answers: 1
The percent of a solute in a solution is defined as the mas of solute in 100 grams of solution. A 20...
History, 04.12.2020 20:50
Health, 04.12.2020 20:50
Mathematics, 04.12.2020 20:50
English, 04.12.2020 20:50
Computers and Technology, 04.12.2020 20:50
Biology, 04.12.2020 20:50