1. Commercial vinegar was titrated with NaOH solution to determine the content of acetic acid, CH,COOH. For 20.0 cm3 of the vinegar, 26.7 cm3 of 0.60 mol dm-3 NAOH was required. What was the concentration of acetic acid in the vinegar if no other acid was present? * A. 0.45 mol dm3 B. 0.60 mol dm3 C.0.80 mol dm3 D. 1.60 mol dm3

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we
2.
banny
1. Commercial vinegar was titrated
with NaOH solution to determine the
content of acetic acid, CH,COOH.
For 20.0 cm3 of the vinegar, 26.7 cm3
of 0.60 mol dm-3 NAOH was required.
What was the concentration of acetic
acid in the vinegar if no other acid
was present? *
A. 0.45 mol dm3
B. 0.60 mol dm3
C.0.80 mol dm3
D. 1.60 mol dm3
Transcribed Image Text:we 2. banny 1. Commercial vinegar was titrated with NaOH solution to determine the content of acetic acid, CH,COOH. For 20.0 cm3 of the vinegar, 26.7 cm3 of 0.60 mol dm-3 NAOH was required. What was the concentration of acetic acid in the vinegar if no other acid was present? * A. 0.45 mol dm3 B. 0.60 mol dm3 C.0.80 mol dm3 D. 1.60 mol dm3
22 Tue 6.3
5.1GGS
5.2 Liqunds
5.3 Solids
4.1 Lewis St
4.2 moiet
231 Wed and
1
15. The gas clouds in space are
mostly hydrogen gas. Wherever a gas
cloud is irradiated by nearby stars, it
4.3 Orbital ov
hybridia
4.4 Intermole
4.5 metqllic bo
produces a reddish glow. What
causes the reddish glow? *
Thurs 3.2 Per
I Bohr's aiomic
2 Quantum m
A. Nuclei of hydrogen atoms undergo fusion.
B. Hydrogen atoms become isotope H atoms.
C Electrons in hydrogen atoms absorb light energy.
BElectrons in the excited hydrogen atoms go to lower energy level.
Electronic co
Atom and mo
mole concept
Transcribed Image Text:22 Tue 6.3 5.1GGS 5.2 Liqunds 5.3 Solids 4.1 Lewis St 4.2 moiet 231 Wed and 1 15. The gas clouds in space are mostly hydrogen gas. Wherever a gas cloud is irradiated by nearby stars, it 4.3 Orbital ov hybridia 4.4 Intermole 4.5 metqllic bo produces a reddish glow. What causes the reddish glow? * Thurs 3.2 Per I Bohr's aiomic 2 Quantum m A. Nuclei of hydrogen atoms undergo fusion. B. Hydrogen atoms become isotope H atoms. C Electrons in hydrogen atoms absorb light energy. BElectrons in the excited hydrogen atoms go to lower energy level. Electronic co Atom and mo mole concept
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