Chemistry, 13.11.2020 06:00 makaylahunt
Calculate the concentration of sodium hydroxide solution obtained when:
1.(a) 2 ml of 0.1 mol/l NaOH is added to 25 ml of water
(b) 10 g of NaOH are added to 50 ml of water
Answers: 1
Chemistry, 21.06.2019 21:30
An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.
Answers: 3
Chemistry, 22.06.2019 11:00
The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.
Answers: 2
Chemistry, 22.06.2019 22:40
Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution
Answers: 1
Calculate the concentration of sodium hydroxide solution obtained when:
1.(a) 2 ml of 0.1 mol/l NaO...
Mathematics, 15.04.2020 04:35
Computers and Technology, 15.04.2020 04:35