I've provided it so that the, Explanation question could be answered.

Q: Item Mass of empty weigh boat Mass of mixture and weigh boat Total Mass of sample of Iron, Salt, and…

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Q: Q8 To what volume (in mL) should 6.27 mL of an 6.57 M acetic acid solution be diluted in order to…

A:

Q: Complete the table by entering the molarity of B2- for each standard solution. Show an illustrative…

A: Given:

Q: 0.3414 grams of sample (crushed aspirin tablet) was weighed and dissolved in 25 mL ethanol. This…

A:

Q: You are required to analyze the semiconductor wastewater samples containing with cadmium. A sample…

A: A question based on qualitative analysis of cations that is to be accomplished.

Q: Question 4-3/page 78. Give two examples of units derived from the fundamental base SI units. Show…

A: We know that there is seven fundamental base S.I  units and these are ;  Meter :-  for length Kelvin…

Q: A student overshoots the endpoint! How will this error affect the reported percent acetic acid in…

A: The question is based on the concept of titrations.We need to explain the effect of overshooting the…

Q: If the equation produces from data is y = 0.371lx - 1.050 and the absorbance for the unknown is…

A: The question is based on concept of Lambert beer's law. it  states that absorbance is directly…

Q: Provide the key term that corresponds to each of the following definitions. (a) a procedure for…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Balance the equation in acidic conditions. Phases are optional. equation: Cu + NO3 → Cu2+ + NO

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Q: 3. An experimenter reacts 30.0 mL of a BaCl, solution with excess AgNO, as shown in the unbalanced…

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Q: 4. Suppose you took the test tube out of the boiling water bath for -30 seconds as you forgot to…

A: “Since you have posted multiple questions, we will provide the solution  only to the first question…

Q: Iron will be dicarded Naphthalene will be dicarded in the sink with running water. NaCl will be…

A: Process of discarding certain wastes

Q: decide if the given statement is true or false,and give a brief justification for your answer.If…

A: Given statement,    In the metric system, the concentration of chemical in a tank of solution is…

Q: The quantity 26.0 kJ is equal to how many calories?

A: We have energy as 26.0 KJ . We have to convert it to Calorie .

Q: 2. Functional groups in Aspirin Draw the formula for Example: hydroxy group (R-OH) Which group may…

A: Aspirin is known as acetyl salicylic acid. It is used to relief pain, fever, and any kind of…

Q: How do you now N2 has coefficient of ONE ? because it has a subscript of 2 because it is a…

A: Generally  first we write a balanced  chemical  reaction  .

Q: In the following situation explain its validity. Mr. Soon Shiong decides to show the class a…

A: Given: Mr. Soon Shiong decides to show the class a chemical reaction by taking 500g of a white…

Q: The number of neurons in an atom is equal to what?

A: Introduction: Each element in the periodic table has a particular number of protons that is equal to…

Q: Will 260 milligrams of calcium carbonate raise the pH of 75.0 milliliters of stomach fluid from a…

A: Calcium carbonate is CaCO3 which is a diacidic base. The balanced equation for the neutralization…

Q: Consist of

A: The best answer for the given questions has to be given.

Q: a) By how much should the student expect their sample measurements to increase by? Why? b) Will…

A: (a) In spectrophotometry, the absorbance is directly proportional to the concentration of analyte…

Q: If you wished to compare your calculated answer above to a directly measured mass, would you need to…

A: Mass of zinc obtained in calculation from density and volume measurement is 1.4 g

Q: Assume that the mass of impure acetanilide is 2.229 g. And the mass of recrystallized acetanilide is…

A: Mass  of recrystallized acetanilide is = 1.225 g Mass of of impure acetanilide is  = 2.229 g…

Q: Why should you know the composition of the weighing form? a. So that it can be washed properly b.…

A: Composition of the compound tells about the mass .

Q: (in this order) that appears in the denominator of the stoichiometry conversion factor.

A: Answer: In this question we have to identify the stoichiometry conversion factor and use it to find…

Q: A patient went to see the doctor in hospital, the doctor ask for a blood test. Results shown that…

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Q: It requires 24.15 mL of 0.03 M HCl to neutralize 38.2 mL of a NaOH solution. What is the…

A: We will write the balanced reaction and then using stoichiometric calculations we will calculate the…

Q: The techniques like filtration and centrifugation are being used for separation of various chemical…

A: Centrifugation is the process of separation of substances by using centrifugal force. And filtration…

Q: Which of the following statements is correct? a. the mass of chemical substances deposited at the…

A: The correct option is:

Q: A student accidentally drops the watch glass atop the evaporating dish containing the dried salt and…

A: Please find your solution below : Mixture is a physical combination of different substances that are…

Q: On a balance mass an amount of potassium hydrogen phthalate (KHP) needed to neutralize approximately…

A: KHP is Potassium Hydrogen Phthalate. Molarity of NaOH = 0.1M  Volume of NaOH solution. = 12 mL =…

Q: Determine the amount in grams of KCI that exists in 20.3g of a solution that contains 1.14 % KCI by…

A: M

Q: ata Table 1. Analysis of Alka-SelltzerⓇ Mass of acetic acid Density of acetic acid Concentration of…

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Q: Jorge was given an equation and told to predict the products. Her teacher marked her answer wrong.…

A: The values of the reduction potential of the given metals are as follows: The reduction potential…

Q: Can you please solve #9,10,11  show all of your steps and explain how you do it, the second picture…

A: Your calculation for #10 (theoretical percent of silver in silver chloride) is correct.  Your…

Q: . Are these results precise? Explain.

A: No, these results are not precise.

Q: Suppose that a student is testing a water sample for hardness, but has found that the sample is so…

A: The hardness of water is measured by spectrophotometric techniques. Hardness in water is due to the…

Q: Keeping track of units during conversions can get confusing. Therefore, a good strategy is to use…

A: We will use conversion factor to convert each term in question.

Q: might dissolve at different times. Consider: • which day the least sugar dissolve in which day the…

A: When solute dissolves in a solution that process is called dissolution.  Rate of dissolution depends…

Q: Changing hydrogen and oxygen into water is a .... a. chemical change b. physical change c. double…

A: When a chemical change takes place bond between atom breaks and new bond forms. Thus when water is…

Q: Name of Name of Chemical Functional Negative test result/ Positive test result/color color of test…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: what is the mass of calcium carbonate reacted?

A: Given, Mass of marble before reaction 3.0g Mass of marble after reaction 1.8g

Q: A man went door to door posing as a goldsmith He promised to bring back the glitter of the old and…

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: An aqueous solution was created by placing 0.018 g of NaCl into a 50 mL volumetric flask and…

A: There are different ways to express the concentration of the solution concentration can be expressed…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.