Calculate the number of protons, neutrons, and electrons in: a. Ba b. Po C. £Cd Calculate the number of protons, neutrons, and electrons in: a. CI b. Na c. Kr

Q: A given quantity of gas at a pressure of 750mmHg and a temperature of -25° C occupies 25L. What is…

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Q: (b) Provide 1,3,5 Anazine product(s) : H3C the (ii) H3C- NH2 missing MeO MeO NH–NH NMC2 -R…

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Q: [synthesis-2] 1,4-keloester mechanim- N, Hч слой, денешь. 100% о вог, Асон 6o'c hey NH O те N-HH Вз…

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Q: Consider the following reaction: 4 HBr(g) + O2(g)  2 H2O(g) + 2 Br2(g) (a) The rate law for…

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Q: Q2 The molar conductivity of strong electrolyte at infinite dilution (A) equals: A) The slope of Am…

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Q: Most ring fusions in a steroid molecule are: Cis Parallel Trans Anti

A: Steroid molecules generally have a four fused cycloalkane rings. For example cholesterol.

Q: o How many moles of gas are present in a 25L chamber containing a pressure of 750mmHg at 25° C

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Q: Consider these electronegativity values: O = 3.44 N = 3.04 S = 2.58 C = 2.55 H = 2.20 What…

A: Since, Polarity measure by the electronegativity difference between the two atoms. More is the…

Q: CH₂ CH₂ | | CH3 CH3 CH3 I CH₂ CH₂ CH3 What is the relationship of these two structures? They are…

A: Identical compounds have same molecular formula and same connectivity of atom Isomers have same…

Q: Part A Wine is 13% alcohol by volume. How many milliliters of alcohol are in a 0.700-L bottle of…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: 6 ??? YOX

A: So here ist we will convert the tertiary alkane to an alkyl halide by reacting it with Br2 in…

Q: IV. Summary Questions 1. Calculate the mole fraction of each component in a liquid mixture…

A: Mole fraction of a component A in a minute of A and B is given by the following equation,  XA =…

Q: f₂c ∙CHO KON, TSOH один morpheline B₂/ADH Nota 90°c 926. Br FC D NH N. GN h H₂=CH-C₂6 кон, от нанн…

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Q: Get the concentration of the unknown solutions with a %T of 63 Given: S1 = 0.02 mg 76%T S2 = 0.04…

A: Given: S1 = 0.02 mg 76%T S2 = 0.04 mg 58%T S3 = 0.06 mg 45%T

Q: If light travels exactly 1 meter in 1/299,772,458 of a second, how many kilometers does it travel in…

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Q: Extraction of DNA involves the use of a 1 M phosphate buffer (1-liter volume) having the hydrogen…

A: Given: Hydrogen ion concentration of buffer =  6.165950019 x 10-9 M Molarity of buffer used = 1 M…

Q: Which compound is a tertiary alcohol? CH3 I H₂CH₂C-00 ON 01 Oll I O III OV CH3 IV II OH HO LOH

A: Out of the given molecules, we have to select the structure that represents a tertiary alcohol

Q: A patient with ovarian carcinoma is prescribed intravenous Taxol, at a recommended dosage of 175.0…

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Q: Part C Hydroxyapatite, Ca₂0 (PO4) 6 (OH)2, the principal component of human bones. Express your…

A: Atomic mass is the mass of  all the atoms         present in molecules .its unit is amu .

Q: There should be 10.07 x 7.395 2.5x0.08 significant figures in the answer to the following…

A: During multiplication and division,  the result is reported in the minimum number of significant…

Q: Q17. Adsorption isotherms are models constructed at constant: A) concentration B) dose of adsorbent…

A: Question 17 as specified.

Q: The manganese(II)-catalyzed redox reaction between cerium(IV) and thallium(I) is thought to proceed…

A: In a multistep mechanism, the slow step is the rate determining step.

Q: If the concentration of mercury in the water of a polluted lake is 0.200  μg (micrograms) per liter…

A: area = 15.5  square miles = 4 × 107 m2 depth = 27 feet = 8.2 m Concentration = 0.200 micro g//L

Q: What is the relationship between Compound 1 and Compound 3?

A: We have to identify the relationship between the compounds

Q: Part II. Draw the structure of the molecule indicated by the IUPAC name provided. Indicate all…

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Q: Which face of cholesterol will be attacked by m-CPBA? The y-face None of these DO The a-face The…

A: Cholesterol has a flat and smooth α face, and a rough β face. The α face contains only axial…

Q: bonds D. DeloW 1300 C 2. Assume you were carrying out the following reaction. How could you use IR…

A: 2) IR spectroscopy is used to determine the functional groups present in the sample. Different…

Q: 2. What is the mass (grams) of one mole of Xenon? 3. How many atoms are in one mole of Xenon?

A: Atomic /molecular mass - Sum of atomic masses of all atoms present in one molecular formula of…

Q: c. Describe what happens when water was added to the dry substances: d. Is there a chemical…

A: It is a multipart question I am solving the upper three parts .It is asked to describe about the…

Q: Briefly explain why the 1-mL pipette has a lower percent tolerance level in the range 300-1000 than…

A: Each pipette have the specific tolerance limit. This means a rated error in the measurements. For…

Q: Convert the following into SI base units (meters, grams, liters). For example: given 1.45 mm (=…

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Q: What is the hybridization of the Catom in the following molecule? CICCI sp Р O sp² sp3

A: Definition of hybridization- Hybridization is the process in which two atomic orbital mixed to form…

Q: When the transport of the 0,05moldm' KCI aqueous solution was measured at 25°C using the interfacial…

A: Given that, at 25oC temperature The concentration of the KCl solution is c =  0.05 mol/dm3 = 0.00005…

Q: 13) Draw a cartoon image showing the (hybrid) orbitals (e.g., spheres and lobes) for acetate…

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Q: I. Identify the functional group present and name the organic compound given 1) 2) CI (C=C1…

A: A functional group is an atom or group of atoms other than the main hydrocarbon chain that is…

Q: 5. The following are three different scales. Determine the correct reading indicated by the arrow.…

A: Accuracy is the term used for the measurements taken near to the original value. Precision is the…

Q: Give the Structures that 3° amine a 1 halide only one chiral Carbon with formula CHIH14 Br No and…

A: We can define the structure with the desired criteria by closely observing the given molecular…

Q: Complete the mechanism and draw the final product for the Grignard reaction. Step 1: Add curved…

A: The negatively charged alkyl group of the Grignard Reagent acts as nucleophile and attacks on the…

Q: You are given a protein solution with a concentration of 0.15 mg/ml. Suppose that we want to prepare…

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Q: The process by which steroids are created from their biological precursors is termed: O Roidin'…

A: The process of creation of any substance is termed by using its name in the name of process.

Q: What is the concentration of Co(OH)₂ (aq) in a solution in which the concentrations of Co²+ and OH…

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Q: ● Which of the following 100.0-g samples contains the highest percent oxygen by mass? H2O N20 C3H6O2…

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Q: Chemistry No two pure compounds can have the same melting point. Is this statement true or false?…

A: The temperature at which a compound melts is known as the melting point of that compound.

Q: The reaction 2 NO(g) + O₂(g)-> 2 NO₂(g) proceeds through the following mechanism: (a) The second…

A: The relation between the concentration of the reactants and the rate of reaction is expressed by the…

Q: Draw one valid Lewis structure (including all lone pair electrons and any formal charges) for the…

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Q: The mass percentage of hydrochloric acid within a solution is 32.00%. Given that the density of this…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: A nanocrystallaine sample of CdSe emits an orange glow that has a wavelength of 570 nm. What is the…

A: Concept:  Light upon transmission have certain wavelength and the frequency. Using the wavelength or…

Q: Calculate the NCV of a coal sample having the following composition: C=80%, H=5%, O=4%, S=3.5% and…

A: In the given question NCV means the Net Calorific Value. The practical amount of energy that can be…

Q: Question 24 Consider the equilibrium below CuO(s) + H₂(g) H₂O(g) + Cu(s); AHrxn = -2.0 kJ/mol Which…

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Q: 7. What must be written in your lab notebook before you arrive to pre-lab for the upcoming wet lab?

A: Before starting any experiment in the laboratory, our lab notebook should have a pre-lab…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.