Which of the following materials will have the greatest effect on colligative properties of a solution? a. CH3CI b. NaCl c. (NH4)2SO4 d. CH3CH2OH O A Ов C
Q: which of the following is a characteristic of a buffer? a. The pH will go down significantly when…
A: Buffers are solution which resist the change in pH upon addition of acidic or basic compoents.
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A: b) hydrophilic
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Q: Which of the following is not a deprotonated substance: a) KOH b) LiOH c) HA d) B
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Q: A solution at pH 7 is considered neutral because (a) its hydrogen ion concentration is 0 mol/L (b)…
A: Answer : D its hydrogen ion concentration is equal to its hydroxide ion concentration.
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Q: THE LEAST EFFICIENT BUFFER MIXTURE a. 0.001 M HCI & 0.001 M NaCI b. 0.1 M NH4CI & 1M NH4CI c. 1 M…
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Q: A buffer solution comprises which of the following? O a. Astrong acid in solution O b. Astrong acid…
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Q: Buffers are aqueous solutions that tend to resist changes in pH when small amounts of strong acid…
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A: Ans 5: - Water is a good solvent because of it's Polarity. The relatively small size of a water…
Q: A solution with pH 4 has __________ the H+ concentration of pH 8.
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- Using a pH meter, you find the pH of an unknown solution to be 8.0. How would you describe this solution? a. weakly acidic b. strongly acidic c. weakly basic d. strongly basicWhich of the following solutions has the greatest concentration of hydroxyl ions [OH-]? Select one: a. lemon juice at pH 2 O b. vinegar at pH 3 O c. tomato juice at pH 4 O d. urine at pH 6 e. seawater at pH 8The salt of diclofenac, a nonsteroidal anti-inflammatory drug (NSAID), has a chemical formula NaC14H10C2NO2. The structure of this drug is provided below. When dissolved in water, it produces: Na + H 'N. CI Select one: a. An acidic solution b. A basic solution C. A neutral solution d. Not enough information is provided. O OO
- When some of the sugar added to iced tea remains undissolved on the bottom of the glass, the solution can be described as A. dilute В. polar C. nonpolar D. saturated E. unsaturatedWhich of the following ionizes completely in solution and is considered to be a strong acid? Select one: O a. NAOH O b. HCL O c. NH3 O d. H2CO3 O e. CH3COOHWhich of the following stability factors would affect the acidity or alkalinity of an IV solution? Select one: a. number of additives O b. O C. O d. Temperature Contact time pH
- which of the following is a characteristic of a buffer? a. The pH will go down significantly when H3O+ is added to the buffer b. The pH will go down very slightly when H3O+ is added to the buffer c. The pH will go up significantly when H3O+ is added to the bufferSubstances those are partially dissolved in water are commonly known as اخترأحد الخيارات a. hydrophilic / hydrophobic b. false statement c. hydrophilic d. hydrophobic e. all given choices are incorrectDefine the following terms: a. phospholipids b. soap c. surface active agent d. phosphoglyceride e. sphingomyelin
- Define the following terms:a. acidb. basea. weak acidd. weak basee. conjugate baseGive Detailed Solution of sub parts..(no need Handwritten answer)In gravimetric analysis, a colloidal product is obtained when Select one: a. The nucleation process is major b. The relative super saturation (RSS) is small Oc. Particles size exceeds 0.02 mm d. The concentration of solute at anytime is very small e. Crystal growth is predominant