How many moles is a 5,822 molecule sample of H2O? Give your answer to 4 sig figs and in scientific notation

Q: Select the STRONGER base in each pair. Briefly explain: nair 1 :0: Dair 3 Dair 2 في م

A: Stronger base among the two can be found out by observing the electron density provided by each…

Q: Spontaneous chemical reactions proceed until they hit equilibrium.  Once the reaction hits…

A: Spontaneous chemical reactions are reactions which takes place without the addition of external…

Q: How many nanomoles (nmol) is a 72.2 pg (picogram) sample of platinum? Give your answer to 3 sig figs…

A: We have to determine the number of nanomoles (nmol) in a 72.2 pg (picogram) sample of platinum.

Q: Given the reaction: CO(NH2),(s) + H,O(g) = CO₂(g) + 2 NH3(g) Kp = 1.39 at 500 K If this reaction…

A: Answer: Given chemical reaction: CO(NH2)2(s)+H2O(g)⇌CO2(g)+2NH3(g)

Q: The question is the following: 1st  A metal , "M", was converted to the phosphate M3(PO4)2. 2nd…

A: Answer: This question is based on law of constant proportion which states that in a compound all its…

Q: 1.4 Consider the structure below: НО. OH OH c) Name at least 4 of the reported health benefits of…

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Q: Redraw the table below and then enter the number of electrons in each quantum level (n) for the…

A: •We have to write number of electron present corresponding value of"n". •Here "n" is principle…

Q: C: CO-H O=C :0: -Ö-CH3 -H 10 :Ö=0 C-O-CH3

A: In chemistry functional group is a substituent in a molecule which is responsible its characteristic…

Q: Which of the following transition metal complexes obey the 18-electron rule?  (Check ALL correct…

A: To answer: Which of the following transition metal complexes obey the 18-electron rule? (Check ALL…

Q: Account for the acidity of cations in aqueous solutions (charge/size or charge density)

A: The ratio of charge and size of an ion is known as charge density.  Charge density = charge / size

Q: Use the phase diagram of Substance X below to find the melting point of X when the pressure above…

A: Melting is defined as the conversion of a substance in its solid state to its liquid state. The…

Q: a. What is the percent (by mass) sodium in sodium nitrite? b. A particular brand of beef jerky…

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Q: How many moles of calcium atoms do you have if you have 7.35 × 10²¹ atoms of calcium. (The mass of…

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Q: What is the correct number of decimal places to use when recording the volume of solution delivered…

A: When measuring from 5mL and 10mL pipets, the smallest division that we can measure is 0.1mL .

Q: Aluminium has a density of 2.70 g/cm³. How many moles of aluminum are in a 13.2 cm³ block of the…

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Q: what is it about the atoms of lithium, sodium, and potassium that cause them to behave in such a way…

A: •Lithium, sodium and potassium are Group-1 elements and these are also known as alkali metal. •They…

Q: (4) Carbon allotropes have the same properties although they have different structure as they Entein…

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Q: From the graph of Density vs. Concentration, created in Graph,  what was the relationship between…

A: According to the plot  For sugar concentration 5% the density of sugar solution is 1.08 g/ml  For…

Q: 1. LUMO for each: B. C. Complete the following acid-base reactions and indicate the HOMO and H Ö: H…

A: Here all the reactions are between an electrophile and a nucleophile. An electrophile is an electron…

Q: Two beakers are placed in a small closed container at 25 °C. One contains 256 mL of a 0.273 M…

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Q: You are going to be using Isoleucine in a buffer. The pKa of the carboxylate group of Isoleucine is…

A: pH of any acidic buffer solution can be measured from Henderson Hasselbalch Equation. In the 1st…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: Balanced chemical equation: balance chemical equation is the reaction in which number of atoms of…

Q: 5. Sketch the Radial Distribution Function 4xr³R² vs. r² for 4s • 5s • • . 4p 4d2-2 Sp 6s бр

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Q: below is shown one of the two chair conformations of (15,3S)-3-ethylcyclohexan-1-ol. a. Next to the…

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Q: compound H₂SO4 SnCh CsC₂ H₂O₂ type of compound ionic Oionic O ionic molecular molecular O molecular

A: Ionic compound contains metal and non metal elements. Ionic compounds produce ions in aqueous…

Q: 3. If a sample known to be about 28, 703 years old has 440g of C-14 atoms, how many grams of C-14…

A: Formulas are  ln(I0I) = K * t Half life = 0.693K

Q: If I want to convert 4.42 kg into lbs, what is the starting place in terms of the conversion…

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Q: find absolute and relative standard deviation of this data.

A: Absolute standard deviation is the measure of the deviation of each data point from the mean value.…

Q: Find the concentration of I in 0.0010 M AgNO3 saturated with AgI. Include activity coefficients in…

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Q: Select the charge balance equation for an aqueous solution of MnCl₂ that ionizes to Mn2+, Cl-,…

A: Given equation for aquous solution of MnCl2 that ionises to Mn2+,Cl-,MnCl+ and MnOH+.

Q: c. 1.52g of HNO3 in 575 mL of solution. Be sure to convert to molarity. d. 1.50 x 10-³ M Sr(OH)2…

A: c). Molarity = (Number of moles /Volume of solution in Liters) Given 1.52 g of HNO3 Given mass of…

Q: How many grams of NaBr are needed to prepare 31.8 g of 1.13% (w/w) NaBr solution in water? How many…

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Q: What is the periodic table arrangement based on, the number of protons, electrons, or neutrons?

A: It can be explained as:

Q: Chemistry What is a reaonance structure for this compound? Thanks! (Ph3)3P=C H CH3

A: In this question, we will write the resonance structure for this given compound.  Two or more than…

Q: Describe how you will prepare 600.0g of 0.250M NaCl soulution from solid NaCl and water as solvent

A: Given ->  Weight of NaCl = 600.0 gm Molarity of NaCl = 0.250 M

Q: a. 88.89 b. 68.89 c. 77.87 d. 55.65 44. A and B start at the same time from two places 136 km apart…

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Q: Do you have a solution, can you write on the paper. Thank you

A: Answer: This question is based on the concept of limiting reagent. Limiting reagent is the reactant…

Q: In general = TOP =T T What is gas? Α. Ο au av D. au av T P = RT Vm-b B. for a van der Waals RT a…

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Q: A. Rank the molecules in order of decreasing strength of intermolecular forces. (1= strongest, 4=…

A: The attraction forces between the different molecules are known as intermolecular forces. In general…

Q: Explain Drago and Wayland’s proposal to explain acid-base reactivity through electrostatic and…

A: Dragon and Wayland's proposal is based for the adduct of Lewis  acid and bases.  A + B <---->…

Q: What would the overall charge of this peptide sequence (Asp-Ala-Phe-Lys-His) at pH 12 be?

A: we have to determine the overall charge at pH = 12, on the given peptide sequence :…

Q: What is the maximum mass of Ni(OH)2 that could be prepared by mixing two solutions that contain…

A: This question is based on stoichiometry. The amount of reactants reacted and product produced…

Q: 1. Given the solid below, calculate the following: a. Volume b. Density if its mass is 104.72 g.…

A: The given solid is a Cuboid. The length of the solid(l)= 5.30 cm  The width of the solid(b) = 2.5 cm…

Q: 3 Decompression sickness (also known as the bends) is a condition that affects divers and others…

A: Ionic compounds are made up of ions and contain electrostatic interactions among ions. Polar…

Q: 1. With regard to p atomic orbital overlap: a.) Show how 2 p, atomic orbitals overlap…

A: According to Molecular orbital theory two Atomic orbitals overlap together to form two molecular…

Q: Assume that water is an incompressible fluid with a density of 1000 kg/m³. Consider two points in a…

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Q: What is the maximum mass of S, that can be produced by combining 90.0 g of each reactant? 8 SO₂ + 16…

A: In this reaction, 8 mole sulfur dioxide react with 16 mole hydrogen sulfide to form 3 mole S8 and 16…

Q: 4. Write in the product, including stereochemistry where relevant, for these reactions. See end of…

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Q: Name the three fundamental particles of an atom. DIfferentiate each.

A: It is asked about the three fundamental particles of an atom

Q: a) If the mass of a sample of water is 16.7655g at 25°C, what is the real volume of the sample?…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.