Phenolphthalein indicator was added, and the solution in the flask was titrated with 0.215m naoh until the indicator just turned pink(ph=8-9). the exact value of naoh required was 22.75ml. calculate the concentration of hcl in the original 10.00 ml sample. can someone explain how to do it? ?
Answers: 1
Chemistry, 21.06.2019 20:30
1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c
Answers: 2
Chemistry, 22.06.2019 12:00
Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earthās heat has destroyed their magnetism.
Answers: 1
Chemistry, 22.06.2019 12:30
Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
Answers: 1
Chemistry, 22.06.2019 14:00
8.98 dm3 of hydrogen gas is collected at 38.8 Ā°c. find the volume the gas will occupy at -39.9 Ā°c if the pressure remains constant.
Answers: 3
Phenolphthalein indicator was added, and the solution in the flask was titrated with 0.215m naoh unt...
Social Studies, 30.01.2020 03:55
Mathematics, 30.01.2020 03:55
History, 30.01.2020 03:55
Mathematics, 30.01.2020 03:55
Mathematics, 30.01.2020 03:55
Biology, 30.01.2020 03:55
Mathematics, 30.01.2020 03:55
Mathematics, 30.01.2020 03:55
History, 30.01.2020 03:55
English, 30.01.2020 03:55
Mathematics, 30.01.2020 03:55
Social Studies, 30.01.2020 03:55