Chemistry
Chemistry, 13.08.2019 04:20, eagles2286

What is wrong with or ambiguous about the phrase "four molecules of nacl"?

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Chemistry, 28.06.2019 13:40, familygrahambusiness
When an ionic compound such as sodium chloride (nacl) is placed in water, the component atoms of the nacl crystal dissociate into individual sodium ions (na+) and chloride ions ( in contrast, the atoms of covalently bonded molecules (e.g., glucose, sucrose, glycerol) do not generally dissociate when placed in aqueous solution. which of the following solutions would be expected to contain the greatest number of solute particles (molecules or ions)? a) 1 l of 1.0 m nacl b) 1 l of 0.5 m nacl c) 1 l of 0.5 m glucose d) 1 l of 1.0 m glucose e) c and d will contain equal numbers of particles.
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Physics, 26.07.2019 21:00, pg67891012345
Pure water is a poor conductor of electricity. when sodium chloride (nacl) is dissolved in water, however, the solution becomes a good conductor of electricity. which of the following statements explains this change in conductivity? a. the nacl molecule changes and becomes a covalent bond when dissolved in water. b. the nacl dissociates into na+ and cl- ions, which are able to carry the charge. c. the nacl breaks down the water molecules creating charged oxygen and hydrogen ions. d. the nacl reacts with water to form the electrically charged compounds hcl and na2o.
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Chemistry, 06.10.2019 03:00, neriah30
400 mm nacl.400 mm nacl. a 1 ml1 ml sample of the protein solution is placed in a tube made of dialysis membrane and dialyzed against 2.0 l2.0 l of the same hepes buffer with 0 mm nacl.0 mm nacl. small molecules and ions, such as na,na, cl,cl, and hepes, can diffuse across the dialysis membrane, but the protein cannot. once the dialysis has come to equilibrium, what is the concentration of naclnacl in the protein sample? assume no volume changes occur in the sample during the dialysis. [nacl]=[nacl]= if the original 1 ml1 ml sample were dialyzed twice, successively, against 100 ml100 ml of the same hepes buffer with 0 mm nacl,0 mm nacl, what would be the final naclnacl concentration in the sample? [nacl]=[nacl]=
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