Question: A 25.00 mL volumetric pipette is calibrated by a chemistry student in the laboratory, the calibrated volume is found to be 25.02 mL ±02 mL. If the student uses the value of 25.00 mL in their calculations and dispenses a volume of 25.03 mL with the pipette for a given measurement, the relative error for the pipette can be represented as:

Q: For each element, identify the charge of its most common ion.  Br    Na   Se   Al   +2

A: Elements in the periodic table can exist as ions. Some elements can exist as cations while some…

Q: 4- Circle the strongest base. a) CH3O6 CH3NH₂ b) Clo I c) CH3CO, or CF3CO2

A: Given a. CH3O-  or CH3NH2 b. Cl- or I- c. CH3CO2- or CF3CO2-

Q: Examine the molecule below. Check the box next to each functional group the molecule contains. In…

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Q: What are the rules and ways on how to name a polyatomic ion, with an example?

A: The following are general rules for naming polyatomic ion :

Q: Convert 28.3 lb to micrograms

A: lb and micrograms both are units of mass. So , we can easily convert them in one another.

Q: Draw a Lewis structure for the molecule below, showing all lone pairs. You may abbreviate any methyl…

A: Given formula of compound is : (CH3CH2CH2)2O Valence electrons of C = 4 Valence electrons of O = 6…

Q: Pick out the 1 degree alkyl halide(s) O Ph. Br- 'Br Ph. Ph O all are 1° alkyl halides Ph Otto Br Ph…

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Q: Silver has a work function, , of 4.64 eV. If a sample of silver is bombarded with 215 nm photons,…

A: To calculate the wavelength of photo-ejected electrons , we first need to calculate the energy of…

Q: 55. 56. HO- CO₂H H CH₂CH₂2 -CH₂ H I C---CH₂ Cl H + OH H₂OC- CH₂CH₂- CH3 H Cl CH3

A: Enantiomers are non-superimposable mirror images of eachother and they have exact opposite…

Q: 20. Some alcohols undergo rearrangement or other unwanted side reactions when they dehydrate in…

A: Alcohols undergo dehydration in the presence of POCl3 and Pyridine to form an alkene.  POCl3 reacts…

Q: Draw the structure of the IUPAC name.

A: Here we are required to draw the structure of given IUPAC.

Q: Which one of these four compounds would give a 13C NMR spectrum with only these three peaks, one at…

A: Only three peaks in 13C spectra indicate there are three types of different electronic environment…

Q: CI O

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Q: How many fused rings are there in steriod?

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Q: Draw a Lewis structure for the molecule below, showing all H,NCH,CH,CH,CHO

A: Lewis structures is also called electron-dot structures or electron-dot diagrams. Lewis structures…

Q: How many significant figures are in the following measurement: 0.00204 g Type your answer...

A: Note: According to our guidelines we are supposed to answer only one question.  Kindly repost other…

Q: 10. Draw the complete, detailed mechanism of the formation of the ozonide for the following…

A: When alkene compound is treated with ozone gas in presence of DMS then ozonolysis reaction takes…

Q: Crystals can have different shapes. Did the benzoic acid crystals form in needles (long and thin),…

A: Crystals of different compounds may have different shapes like cubic, hexagonal, rectangular etc.

Q: 16. Show how you would use Grignard syntheses to prepare the following alcohols from the indicated…

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Q: The names is INCORRECT. Write and draw the most probable IUPAC name.

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Q: Which of the following are always true of reactions that are energetically favorable under standard…

A: Equilibrium constant pay a key role to predict the possibility of reaction. Gibbs free energy pay…

Q: -COH (acid) &H (aldehyde) Ar-H (aromatic) (C-C-H, vinylic OH (alcohol or phenol) X-C-H (X= halogen…

A: The 1H NMR spectrum given contains two peaks indicating two different proton environments.

Q: The freezing point of 58.53 g of a pure solvent is measured to be 44.17 ºC. When 2.15 g of an…

A: We are given with a data for the depression in freezing point on adding a solute to a pure solvent…

Q: Draw the Line Bond Structure for carbon disulfide (CS₂) Step 1: Count the total number of valence…

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Q: The concentration of H+ ions in a bottle of table wine was 3.7 x 10^(-4) M right after the cork was…

A: pH of a solution is defined as the negative logarithm of H+ ion concentration. pOH of a solution is…

Q: 02 Announcements - CHM2 ← → C K app.101edu.co D Starting from the Newman projection below, rotate…

A: The staggard conformation in which bulkier groups at dihedral angle of 60° and 300° .This is called…

Q: CO₂H CO₂H a. Draw the reactants that can be used in each of the two different Diels-Alder reactions.…

A: Solution: We know Diels Alder reactions are stereospecific reaction, so the stereochemistry depends…

Q: Write the IUPAC name for the compound below. Be sure to use correct punctuation. Keep the…

A: It is asked to write the IUPAC nomenclature of the given compound.Let's follow the rule write the…

Q: For each of the following compounds, provide: a. Molecular Formula and molecular mass (for halides,…

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Q: The molecular speed of gas is related to the speed of sound, as sound vibrations cannot travel…

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Q: Write the molecular diagram (HOMO LUMO) of indigo C16H10N2O2 and explain

A: Liu and co-workers reported (Molecules, 2019, 24, 3831; doi:10.3390/molecules24213831) a calculation…

Q: ndicate which of the following would be more soluble in ethanol C2H5OH: acetic acid HC2H3O2, steric…

A: Ethanol is polar protic solvent . We know the rule of solubility  I.e. Like dissolves like that…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

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Q: Explain why a σ bond formed by overlap of an s orbital with an sp3 orbital of carbon is stronger…

A: The strength of a covalent bond is proportional to the amount of overlap between atomic orbitals.…

Q: Draw the correct product for the Diels-Alder reaction. 0.1- Select Dr

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Q: The Km of an enzyme is 5.0 mM. Calculate the substrate concentration when this enzyme operates at…

A: The concept used in the given question is from Enzyme catalysis of Chemical kinetics. Also the…

Q: How can you distinguish a straight-chain alkane from a saturated fatty acid?

A: Boiling point is one of the physical properties to distinguish  many substances which differ in…

Q: A student sets up the following equation to convert a measurement. (The? stands for a number the…

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Q: Calculate the frequency of a light with a wavelength of 42.6 mm. Give your answer to 3 sig figs.…

A: Given, Note: 1000 mm = 1 m Wavelength (λ) = 42.6 mm = 0.0426 m Frequency (f) = ? Note: Speed of…

Q: (NH4)2SO4 has a van't Hoff factor of i= 2.3. What is the concentration of particles in a 0.9501 M…

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Q: 3. Another method of making the spots of these cations visible is by spraying the chromatogram with…

A: Ions are of two types: cation and anion. Cations are positively charged and anions are negatively…

Q: (2Z)-3-sulfanylhex-2-en-4-ynedial

A: According to IUPAC nomenclature naming of an organic compound is based on the longest chain of…

Q: Draw the Line Bond Structure for 2-methylbutane Step 1A: COMPLETE THE SKELETON STRUCTURE: Step 2:…

A: using given steps 1-6 we have to draw the structure of 2-methylbutane

Q: . Convert the following: a. 623.5 F to K  b. 0.0083 miles to cm c. 3027.2 ml to ounces

A: Note : According to our guidelines we are supposed to answer only first three subpart. Kindly repost…

Q: Draw the skeletal (line-bond) structure of 3-bromo-5,5- dimethylcyclohex-1-ene. Drawing

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Q: Name the functional group shown in each molecule below. The first answer has been filled in for you.…

A: In this question given that four organic molecules, which has different functional groups. We have…

Q: 15. Show how you would synthesize the following alcohol from compounds containing no more than five…

A: Concept based on carbonyl compound with grignard reagent.

Q: Draw a resonance structure that places a pi bond in a different position. Include all lone pairs in…

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Q: Show, using arrows, a mechanism for the formation of a benzodiazepine 4-oxide from the reaction of…

A: We have to here show using arrows, a mechanism for the formation of a benzodiazepine 4-oxide from…

Q: How many molecules are in each sample? 69.0 g N2 (Express your answer using three significant…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

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.