The density of aluminum is 2.70 g/cm3. A square piece of aluminum foil 22.86 cm on one side weighs 2.568 g. What is the thickness of the foil in mm? express your answer in decimal notation rounded to the correct number of significant figures.

Q: A sample consists of butyric acid, acetic acid and ethylene glycol. At a distilling temperature of…

A: Distillation is a chemical technique in which a mixture of two or more miscible liquids are…

Q: Which of the following paired statements are correct? A Prism --- serves as the source of radiation…

A: Prism will separate light into its component wavelengths. Light source serves as source of…

Q: Question 9 What can be inferred if the BOD5 value is high? The concentration of organic pollutants…

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Q: 2. Draw the structure of the diene and dienophile that will lead to the following adduct. CH3 O or…

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Q: Propanenitrile undergoes acid hydrolysis to give Select one: a. propanamide. b. butanone. c.…

A: Propanenitrile or propionitrile (CH3CH2CN) is a nitrile compound which on acid hydrolysis gives…

Q: 100 80 60 40 20 % of base peak 40 59 83 80 101 142 h 120 160 m/e Mass Spectrum M+ 160 (<1%) C7H1204…

A: Mass spectrum is the technique used in analytical chemistry for the separation of ions based on the…

Q: Which of the following will cause no change in the amount of Fe calculated from the results of an…

A: Iron can be estimated spectrophotometrically by complexing Fe2+ with o-phenanthroline.

Q: 2. The skeletal structure of acetic acid shown below is correct, but some of the bonds are wrong.…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: In the ideal gas experiment, a student used dilute HCI instead of 6.0 M HCl. As a result, a small…

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Q: Discuss how you can determine which of these compounds might be alkanes, cycloalkanes, alkenes, or…

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Q: Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value…

A: We can determine Fe in a water sample by using spectroscopy.

Q: Arrange the following compounds in terms of increasing freezing points:      I. 3.5 m Ba(OH)2…

A: The given compounds are  I. 3.5 m Ba(OH)2II. 4.0 m C6H12O6III. 2.4 m K3PO4IV. 5 m HNO3 Arrange the…

Q: Instructions: Convert the Condensed Structural Formula into CONDENSED FORM ONLY. Example: CH3CH2CH3

A:

Q: The cryoscopic constant is dependent on the following factors: I. IMFA present in the solutes II.…

A: Solution is made up of solute and solvent. Solute is present in small amount and solvent is present…

Q: Instruction: Write the following organic compound in CONDENSED FORM (SHOW ALL THE NUMBERS OF ATOMS…

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Q: Which of the following statements about the BOD test is FALSE? A There is an indirect correlation…

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Q: In given change in state, 44J of work are desroyed and the initialenery increase by 170J. If the…

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Q: When a 1.035-g sample of benzoic acid, C6H5CO2H, is completely combusted in a bomb calorimeter, the…

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Q: Selenium-73 decays by positron emission with a half-life of 7.15 hours. What mass remains from a…

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Q: True or false:

A: 1.False cis-[PtCl2(NH3)2] has +2 oxidation state 2.True

Q: Chlorophyll is the green pigment found in plants. Which of the following statements can be implied…

A: Chlorophyll is a green pigment which helps in the photosynthesis of plants. It basically absorbs…

Q: After seeing Blake Lively's Met Gala 2022 look, a chemist was inspired to determine the copper…

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Q: This molecule and its mirror image is chiral or achiral? and what stereocenter do they represent?

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Q: A Poiseuille flow experiment was carried out to measure the viscosity of air at 298 k. The sample…

A: Detail mathematical calculation is shown below to find out viscosity in cP unit .  Here ,  1 cm = 10…

Q: Determination of water hardness using complexometric titration.   During sample analysis (ppm…

A: Given: Determination of water hardness using complexometric titration. To determine  EX…

Q: Which among the following reagent in the choices can be utilized to differentiate propionaldehyde…

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Q: Calculate the final temperature when 20.0 grams of water at 85ºC is added to 35.0 grams of water at…

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Q: Determine the product/s of the following reactions. 1. 3-methylpentanal + HCN 2. hexan-3-one + 2 mol…

A: The correct answer is given below

Q: Arrange the compounds in terms of increasing freezing points:      I. 3.5 m Ba(OH)2      II. 4.0 m…

A:

Q: Arrange the following compounds in terms of increasing freezing points: I. 3.5m Ba(OH)2 II.4.0 m…

A:

Q: 3- How many grams Na2SO4 (142g/mol) are needed to react with 40 ml of 0.04 M Zn(NOsh if the reaction…

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Q: 4. A vessel containing 1.000 kg of water at 25.00 °C is heated until it boils. How much heat is…

A: Mass of water = 1 Kg Intital temperature of water = 25 degree celsius Final temperature of water =…

Q: b) State two important quantum-mechanical concepts associated with the Bohr model of the atom.

A: Here we have to write two important quantum mechanical concepts associated with the Bohr's model of…

Q: b) List the subshells and maximum number of electrons for principal quantum number 4.

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Q: Instructions: Answer the question in detail and explain why and its concept behind. Handwritten ans

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Q: Why can't water alone clean soiled clothes effectively? How does the detergent help in the cleaning…

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Q: Use the image to answer the following questions 1. 1 3 These two regions are composed of CT. 2 2 and…

A: A- 2  B_1  C_ 5

Q: Which of the following statements is true regarding the iron-phenanthroline method?

A: Iron- phenanthroline method is a colorimetric method for quantitative analysis of Fe2+. Fe2+, when…

Q: Propose a mechanism for the formation of methyl benzoate when ethyl benzoate is heated in methanol…

A: Here we are required to provide the mechanism of formation of methyl benzoate

Q: Determine the mass of nickel that shall be electroplated from a solution of nickel (II) chloride by…

A: Given  Current (i) = 0.25 amperes Time (t) = 10 hours  = (10×60×60) seconds  t = 36000 seconds  Mass…

Q: The pH of vinegar is around 4.95 while that of milk is around 6.69. How do they compare in terms of…

A: Here we are required to compare the acidity of vinegar and milk.

Q: Instruction: Write the following organic compound in CONDENSED FORM (SHOW ALL THE NUMBERS OF ATOMS…

A:

Q: W h i l e   w o r k i n g   i n   a   m e t a l   p r o ce s s i n g   f a c i l i ty ,   K a t   h…

A: Given the total mass of the homogenous alloy sample taken for titration = 1.000 g  One of the metals…

Q: Which of the following will cause no change in the amount of Fe calculated from the results of an…

A: Iron-phenanthroline complex formation is a spectroscopic method for the determination of iron…

Q: (Chloromethyl)oxirane (epichlorohydrin); furoic acid is ........... heterocyclic compounds…

A: All the given heterocyclic compound finds many uses in day synthesis chemistry and further day to…

Q: Does the 0.100 came from the conversion of 100 mL? Or is it from the given 0.100 M buffer?

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Q: If a system is subjected to any cyclic transformation, the work produced in the surroundings is…

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Q: The compounds 1-hexanol, 3-methyl-3-pentanol, hexanal, and 2-hexanone, and were used using different…

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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.