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A chemistry student wants to buffer a solution with a pH of 4.5. The student adds 0.1 mol of a weak acid buffer to 0.1 mol of a conjugate base. Taking the pKa value of the buffer into consideration, determine how much stronger an acid in the same buffer system would need to be added to the solution to shift the pH from 4.5 to 4.0, assuming temperature and pressure are constant.

asked Jan 22 in Chemical equilibrium by DarylBottoml (2.4k points)

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What is the IUPAC name of a cycloalkane compound with 8 carbon atoms in its ring?

asked Jan 21 in Organic Chemistry by HungZ257369 (2.7k points)

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According to the trait theory of personality, what are the basic dimensions of individual differences?

asked Jan 20 in Psychology by GlenCaringto (2.5k points)

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asked Jan 20 in Psychology by AnibalX1615 (1.9k points)

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asked Jan 20 in Psychology by SamaraBradle (2.6k points)

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A chemistry student needs to determine the pH of an unknown solution using a pH meter. The student is given the following equipment: pH meter, reference electrode, and a container for the solution. The student should describe the steps needed to measure the pH of the solution and explain the significance of the obtained pH value.

asked Jan 22 in Analytical Chemistry by ElsieBidmead (2.4k points)

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Why did Zimbardo's Stanford Prison Experiment receive criticism?

asked Jan 20 in Psychology by MarquisMonte (2.5k points)

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According to the humanistic theory, what is the main goal of psychotherapy?

asked Jan 20 in Psychology by KaitlynRodri (2.5k points)

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How does the schema theory explain memory?

asked Jan 20 in Psychology by ChanteStroh (2.5k points)

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A chemistry student is given a 25 mL sample of a solution containing an unknown amount of sodium chloride. After adding excess silver nitrate solution to the sample, the student records the mass of the resulting precipitate to be 2.655 grams. Using mass balance calculations, determine the mass percentage of sodium chloride in the original solution.

asked Jan 22 in Analytical Chemistry by KristoferAck (2.1k points)

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Why was the term 'dyke' reclaimed by the lesbian community?

asked Jan 20 in Psychology by BlondellHock (2.3k points)

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Compare the influences of nature and nurture on personality.

asked Jan 20 in Psychology by KassieStarns (2.1k points)

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Compare the biological and environmental factors that contribute to human development.

asked Jan 20 in Psychology by ShavonneSalc (2.8k points)

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What is the condensed structural formula for the cyclohexane molecule?

asked Jan 21 in Organic Chemistry by TereseMandal (2.6k points)

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What are the implications of the personality disorder trait system for the classification and diagnosis of personality disorders?

asked Jan 20 in Psychology by Sung68J56969 (2.0k points)

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Who proposed the use of the Bayesian approach?

asked Jan 20 in Psychology by ArleneLeichh (3.2k points)

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What is the main focus of psychodynamic therapy?

asked Jan 20 in Psychology by Lynell160113 (2.2k points)

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When was the theory of attachment styles developed?

asked Jan 20 in Psychology by BarbraVidal (1.6k points)

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According to the door-in-the-face technique, what approach is used to get someone to agree to a request?

asked Jan 20 in Psychology by Cathern2110 (2.7k points)

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Why do researchers use regression analysis?

asked Jan 20 in Psychology by Phillipp57B1 (1.6k points)

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