An unknown amount of acid can often be determined by adding an excess of base and then back- titrating the excess. A 0.3471-g sample of a mixture of oxalic acid, which has two ionizable protons, and benzoic acid, which has one, is treated with 93.0 mL of 0.1030 M NAOH The excess NaOH is titrated with 21.00 mL of 0.2030 M HCL Find the mass % of benzoic acid.

Q: Part D: Food Calories Naked Juice Serving size 240 mL D1. Name of food product D2. Mass of food…

A: Calories per gram * Carbohydrate = 4 kcal per gram * Protein = 4 kcal per gram * Fat = 9 kcal per…

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A: Energy cannot be converted from one form into another

Q: Phy P CHI Eち0

A:

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A: The objective of the question is to calculate the mass of water heated.

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A: we are given: mass of Zn used = 1.02 g  Volume of gas collected = 393 mL * (1L/1000 mL) = 0.393 L…

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A: a)- The  naming of chemical compounds is done by following the IUPAC nomenclature. The priority…

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A: The statement, " gas molecules experience friction when traveling through space" is

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Q: None

A: Answer image:

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A:

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A: The alkyl halide on treatment with small base such as methoxide ion produces more substituted alkene…

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A: To rank the values according to the magnitude

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A: Since you gave posted multiple questions, we are entitled to answer the first only.

Q: Number 4

A: IUPAC name of the given compounds are provided as follows,

Q: || || من هم أحياة Drawing .

A: we have to draw the product of the given reaction.

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Q: None

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Q: 1-

A:

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A: Concrete consists of mixture of aggregates i.e.sand , gravel, portland cement water.

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A:

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A: In laboratory we should work very carefully.

Q: How to answer number 67

A: Applying concept of chemical bonding.

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.