Drag the appropriate pH values to their respective bins. Reset Help pH = 1 pH = 3 pH ! I = 5 pH = 7 pH = pH = 10 %3D More Charged Molecules More Neutral Molecules
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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 basicFigure 2.12 A pH scale. Here, red dots signify hydrogen ions (H+) and blue dots signify hydroxyl ions (OH). Also shown are the approximate pH values for some common solutions. This pH scale ranges from 0 (most acidic) to 14 (most basic). A change of one unit on the scale corresponds to a tenfold change in the amount of H+ ions. Photos, JupiterImages Corporation. Figure It Out: What is the approximate pH of cola?When comparing pH, a solution with a pH of 5 contains 100 times the amount of H+ when compared to a solution with a pH of 7.
- At neutral pH (pH = 7): a. acidic amino acids have a net positive charge b. basic amino acids have a net positive charge c. acidic amino acids have no charge d. basic amino acids have no charge e. none of the aboveDefine the terms acidic, basic, acid, and base. Also define pH and describe the relationship between pH and the H+ concentration of a solution.A solution with a pH of 2 has a hydrogen ion concentration that is _______________ the hydrogen ion concentration of a solution with a pH of 4. (a) 1/2 (b) 1/100 (c) 2 times (d) 10 times (e) 100 times
- How much of the enzyme proteinase k (solute) is required to make 250ml of a solution with a concentration of .01mg/ml? (Weight/volume ratio)A protein has an isoelectric point at 6. It is soluble at what pH level? A. 6 B. 10 C. 8 D. 4Define pH scale, acid, base, and buffer. How do buffers reduce changes in pH when hydrogen ions or hydroxide ions are added to a solution? Why is this phenomenon important in organisms?
- A buffer donates OH- ions when conditions become too basic and accepts OH- ions when conditions become too acidic. is an acid that is used to offset overly basic conditions in the body. donates H+ ions when conditions become too basic and accepts H+ ions when conditions become too acidic. is a base that is used to offset overly acidic conditions in the body.Describe surroundings at home which reminds you about biochemistry and relate the situation to biochemistry. (related to one of this : water, acid base, amino acid, proteins) Choose a sitution to descibe, eg: laundry, baking, shower, cooking etc.Using a ph meter you find the ph of an unknown solution to be 8.0. How would you describe this solution ?