A student prepares a weak acid solution by dissolving 0.2400 g HZ to give 100. mL solution. The titration requires 30.0 mL of 0.1025 M NaOH. Calculate the molar mass of the acid. (a) Would the molar mass be too high, too low, or unaffected if the student accidentally used 0.1400 g in the calculation? Explain. ex. too high/too low/unaffected and directly proportional/inversely proportional/ unrelated  (b) Would the molar mass be too high, too low, or unaffected if the student accidentally used 20.0 mL instead of 30.0 mL? Explain. ex. too high/too low/unaffected and directly proportional/inversely proportional/ unrelated

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A: ->A reaction is spontaneous if ∆G<0 a reaction is non-spontaneous if ∆G>0.

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Q: The acid dissociation constant K, of acetic acid (HCH,Co,) is 1.8 × 10. Calculate the pH of a 0.48M…

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Q: Michael Reaction → 1,5-diketone 1. Nao at, acetone 2. 3. H30+, heat

A:

Q: 6. why is the segmental mobility of a polymer reduced by the presence of the filter?

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Q: A chemist must prepare 450.0 mL of nitric acid solution with a pH of 1.60 at 25 °C. He will do this…

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Q: 11. (a) Compound A with molecular formula C10H17NO has the following 'H NMR spectra. Identify the…

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Q: Draw the resonance structures by hybrid orbitals. NH2 NH2

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Q: What is the IUPAC name for the compound? H;C-CH,-CH-CH, CH3 ОН IUPAC name:

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Q: What are the characteristics of a good electrophile for an SN2 reaction?

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A:

Q: Define the following phenomena with reference to main group compounds: (a) inert pair effect

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Q: 15. A lens is placed in air and then submerged in ethanol. Draw the path of light as it travels in…

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Q: What common ion do HF, HCI, HBr and HI produce when dissolved in an aqueous solution?

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Q: An object has a density of 0.25 g/mL and a mass of 0.75 kg, find the volume(in ml) of this object.

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Q: Give the IUPAC name of the compound below: OH CH3 SH O (2R,4R)-2-methyl-4-hydroxypentan-1-thiol O…

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Q: A chemist measures the energy change AH during the following reaction: 2 NO,(9) → N,O4(9) AH=-55.3…

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Q: The rate constant for the reaction is 0.890 M-! · s-1 at 200 °C. A → products If the initial…

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Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for