Count the significant digits in each of these measurements: measurement 0.003700 J -1 6.4 X 10 mL 74800. kg 5.0 × 10 -3 kJ/mol number of significant digits 0 0 7 0 5

Q: A 116.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A: Mass of the unknown substance= 116.3gMolar mass of unknown substance = 189.50 g/molTherefore moles…

Q: Predict the major products of this reaction. Cl₂ hv 2 Draw only the major product or products in the…

A: Cl2 in light undergoes go free radical halogenation reaction.Cl2 is a reactive gas the rate and the…

Q: Acetylene (C₂H₂) gas is often used in welding torches because of the very high heat produced when it…

A: Writing the balanced chemical equationC2H2 + O2 → CO2 + H2OBalancing the above equation, we get…

Q: CH3CH₂ CH₂CH3 CH3 CH₂CH₂CH3 CH3 CHCH3 CH3

A: McLafferty rearrangement of monounsaturated molecular ion or radical ion with the cleavage of α,…

Q: The drawing below shows a mixture of molecules: carbon nitrogen oxygen key hydrogen sulfur chlorine…

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Q: Out of a sample of 7000000 air molecules, approximately how many would be oxygen molecules?

A: To determine the approximate number of oxygen molecules in a sample of air that contains 7,000,000…

Q: What is the electron configuration for Chlorine (CI)? [Ar]3s 3p 2 6 , [Ne]2s 2p 3s 3p 2 6 2 10,…

A: The objective of the question is to determine the correct electron configuration for the element…

Q: draw the bond line drawing of butyl ethyl

A: When the bonding between two atoms is represented by a line, then it is known as bond line…

Q: Meperidine is a medication used for pain relief. A bottle of meperidine is labeled as 50 mg/mL.…

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Q: 10. Determine the formal charge on every atom in the following molecule :0: :00:

A: From given question there is need to determine formal charge on sulphur and oxygen in SO3

Q: How many signals would you expect to find in the 13C NMR spectrum of the following compound?

A: The groups of carbon that are chemically non-equivalent give separate signals in the 13C NMR…

Q: Formula SO3 HCN NO₂ AsCl5 #VES Lewis Structure Resonance? (Y/N) Show Electron Group & Bond Angle…

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Q: What amount of heat (in kJ) is required to convert 29.9 g of an unknown solid (MM = 67.44 g/mol) at…

A: The objective of the question is to calculate the total amount of heat required to convert a solid…

Q: CI- A. CI- A B CI CI CI CI CI- Cl C CI CI D -CI

A: While drawing a stable chair conformation we should keep in mind that the high molecular weight…

Q: me to calculate the pressure of the air in a flas

A: To calculate the pressure of air in the flask when 125 mL of water is added (assuming the volume of…

Q: 5. If 152 g of Na2SO4 is dissolved in 875 g of H₂O, what is the boiling point of the solution?…

A: In the given question->Weight of Na2SO4 = 152 gmWeight of H2O = 875 gm = 0.875 kg       (1kg =…

Q: Choose the solvent below that would show the smallest amount of freezing point depression when used…

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Q: A solution is prepared by adding 20.00g of lactose (milk sugar) to 110.0g of water at 55°C. The…

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Q: Convert the condensed formula (CH₂), CHCH₂OCH₂CH₂ to a complete structural formula by adding all of…

A: Bond line formula is way of representation of organic compounds where one line represents one…

Q: Draw the radical intermediates (including their resonance structures) and final products for each…

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Q: It seems that either your starting amount is incorrect or one of your conversion factors has an…

A: Volume: 22.3gallon1 gallon = 3.785LDensity= 0.8206g/ml

Q: H H H-C=C-C-H I C-H This compound contains P (response not displayed) Counting only lone pairs, or…

A: The degree of unsaturation is calculated by using the formula:Put in all the known values to get the…

Q: Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10Hg, molar mass =…

A: Given:Mass of napthalene (C10H8) = 78.8 gMolar mass of (C10H8) = 128.16 g/molDensity of benzene =…

Q: 15. Explore Solubility Rules (here is more practice if you want to master the topic). Understanding…

A: Understand the Concept:Solubility rules determine the ability of compounds to dissolve in…

Q: Solve for the variables below. a. 769.17× 10 – 7.6917 S p= b. 881.73× 10-4 = j j=

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Q: ow many grams of sodium chloride is needed to prepare 80g of 10% (w/w) solution of sodium de in…

A: We know that %w/w = Given %w/w of NaCl solution= 10% which implies that 10g of NaCl is present in…

Q: 4) Draw the radical intermediates (including their resonance structures) and final products for each…

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Q: The slope of a plot of ln Pvap vs. 1/T (where T is in kelvin) for a substance is -2243.9 K. What is…

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Q: Do the following calculation. How many significant figures are justified for the answer? = 6.02…

A: When adding different numbers, the answer should have the same number of decimal places as the…

Q: Practice: What is the IUPAC name? HO CI

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Q: + Provide the correct IUPAC name for the compound shown here. 6- 5- 3- CH3 4-dichloro pentane di CH3…

A: RULES for IUPAC nomenclature; In first step, we identify functional groups present.  We make longest…

Q: Using the bond energies provided below, calculate the enthalpy change (AHrxn) the reaction shown.…

A: From given question there is need to determine change in enthalpy of the given reaction.

Q: In both examples below the reactants shown are combined to bring about a nucleophilic substitution…

A: If a good nucleophile is present then substitution takes place but if a strong base is present then…

Q: The decomposition of sulfuryl chloride (SO2CI2) is a first-order process. The rate constant for the…

A: We have decomposition of sulfuryl chloride SO2Cl2, rate constant k = 4.5x10-2 s-1temperature = 660…

Q: A patient needs to maintain a certain dose of a drug in their system to be effective. A drug follows…

A: The objective of this question is to determine the time it will take for 90% of a drug to decompose…

Q: 7. A solution of nonelectrolyte contains 30 g of solute dissolved in 250 g of water. The Top is…

A: We knwo,  equation for elevation of boiling point (ΔTb ) is given  by,    where,…

Q: A chemist must prepare 775. mL of 715. mM aqueous barium chloride (BaCl₂) working solution. She'll…

A: Given:Molarity (M1) of BaCl2 stock solution = 0.955 MMolarity (M2) of BaCl2 diluted solution = 715…

Q: 10. A 10kg block of ice is heated from -15 to 110 degrees Celsius and converted to steam. a. What…

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Q: What amount of heat (in kJ) is required to convert 16.3 g of an unknown liquid (MM = 83.21 g/mol) at…

A: The objective of the question is to calculate the total amount of heat required to convert a given…

Q: Convert 0.386 g to milligrams. Use only the metric system.

A:

Q: 4. Draw the Lewis dot diagrams for the following molecules. If applicable, include formal charges…

A: We have been asked to draw Lewis structures of different molecule and we also have to show the…

Q: How many moles of HCI are there in a 25mL solution having molarity 0.25M

A: Molarity of HCl solution = 0.25 MVolume of HCl solution = 25 mL

Q: Which polymer is the most common synthetic organic polymer in households. It is the first polymer to…

A: Polyvinyl chloride (PVC) is the most common synthetic organic polymer found in households. It was…

Q: Formula SCI₂ ICIA IF4* #VES Lewis Structure Resonance? (Y/N) Show Electron Group & Bond Angle…

A: We have been given the table and we have to fill the asked questions.

Q: Decide whether a chemical reaction happens in either of the following situations. If a reaction does…

A: Reduction potential of Pb2+/Pb = -0.13 Vandreduction potential of Pd2+/Pd = 0.915 VAs reduction…

Q: How many hydrogen atoms are in 3.10×1025 water molecules?

A: The objective of this question is to find out the number of hydrogen atoms in a given number of…

Q: Which of the following would be classified as an electrophile? ►View Available Hint(s) O & B. CH CH,…

A: An electrophile is a chemical species that is electron-deficient and has an affinity for electrons.…

Q: IDENTIFY THE HANDEDNESS OF THE FF (D-FORM OR L-FORM) 5. Н НО. Н CH₂OH c=0 ОН Н ОН CH₂OH D-Sorbose…

A: The question is based on stereochemistry. Stereochemistry refers to the three dimensional…

Q: Give the noble gas electron configuration for the following: 2+ Cu ²+

A: Since Cu has atomic number 29. Hence it will come after Argon noble gas.

Q: The compound below is treated with N-bromosuccinimide (NBS) in the presence of light. Draw both…

A: The reaction of alkene with N-bromosuccinamide(NBS) is a type of radical halogenation reaction,…

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.