How many grams of Zn are there in a sample of Zn that contains the same number of moles as a 78.1 gram sample of Rb?

Q: What is the pka of the indicated hydrogen? ↓ H

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Q: Question 3 Phosgene decomposes by the reaction: COC₂ (g) CO (g) + Cl₂ (g) Kc- 8.3 x 104 (at 360°C)…

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Q: What is the chemical name for Na₂HPO4?

A: The compound given is Na2HPO4.

Q: What is the molarity of a 9.75% by mass aqueous solution of an ionic compound, AB (231.76 g/mol)…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Calculate the potential of the (Ag* | Ag) couple with respect to (Cu²+ | Cu) if the concentration of…

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Q: 00 E17D.2(b) The rate constant for the decomposition of a certain substance is 2.25 × 10-2 dm³…

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Q: An aqueous KNO3 solution is made using 72.3 g of KNO3 diluted to a total solution volume of 1.50 L.…

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Q: Calculate the density of a solid with mass 27.16g. The solid was placed in a measuring cylinder…

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Q: A. An ice cube is 20 mm on a side. How much energy is needed to melt the ice cubes if their initial…

A: The length of the ice cube = 20 mm  The temperature= 32o F   We have to calculate the energy needed…

Q: What is the effect of prolonged digestion in gravimetric analysis?

A: Gravimetric analysis is the process in which the amount of an analyte in a sample is determined by…

Q: Define Le Chatelier's Principle. A

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Q: What is the theoretical yield of isopentyl acetate if 0.50mL of 10.0M acetic acid reacts with 0.85mL…

A: Given following balanced Chemical equation -  CH3CO2H(aq) + HOCH2CH2CH(CH3)2(aq) ----->…

Q: 10. Use the results from 8 & 9 to show the uncertainty principle holds for a particle in a 1-D box.…

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Q: Modify the given copy of the starting material to draw the major product(s). Use the single bond…

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Q: mechanism of polymerization for 6-hydroxycaproic acid

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Q: A. Predict the pressure of nitrogen gas at T =-98 K and v=0.00375 m³/kg on the basis of (a) the van…

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Q: Questions 4 through 7 refer to the following experiment: 0.500 g of Ca metal is added to 50.0 mL of…

A: The balanced chemical equation is: Ca(s) + 2H+(aq)  → Ca2+(aq) + H2(g)  Mass of Ca(s) taken = 0.500…

Q: NH₂ HO

A: Isoleucine structure have 6 carbon atom 13 nitrogen atom one nitrogen atom and two oxygen atom

Q: Give a clear handwritten answer with explanation....give name and draw all isomers for the given…

A: Note- Since it is a mutipart question, hence I solved first three part of the question according to…

Q: 24. Which of these statements is true when comparing compounds 10 and 11? HO 10 IL A) 11 is a…

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Q: one 232 g tube of Colgate Fluoride toothpast contains 0.76% sodium monofluorophosphate as the…

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Q: A 0.334-g sample of naphthalene (C₁0Hg) is burned in a bomb calorimeter and the temperature…

A: we have to calculate the heat of combustion for burning 0.334 g naphthalene

Q: 7. a) Cobalt(I) reacts with oxygen gas to form Cobalt (III) oxide. Balanced the chemical reaction.…

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Q: Which of the following should be treated as corrosive? 6 M sodium hydroxide Copper metal Acetone…

A: A corrosive substance is the one that destroys or causes damages to living tissues. They can attack…

Q: ✓14 15 16 ✓17 18 19 20 2 Nitric acid can be formed in two steps from the atmospheric gases nitrogen…

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Q: Calculate the pH value of the solutions ( with the following parameters: c(H2PO4 ) = 0.23 mol L…

A: Solution 1 Volume = 0.942 L Concentration of H2PO4- = 0.23 mol/L Concentration of HPO4-2 = 0.42…

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A: we have to calculate the final concentration of the drug

Q: Carbon and oxygen combine to form carbon dioxide. A chemical equation you might write for this…

A: Substance that are present to the left of the arrow in a chemical equation are reactants and…

Q: 2Ca(s) + O₂(g) → 2CaO(s) 2KCIO3(s) → 2KCl(s) + 302(g) HCl(g) + NH3(g) → NH₂Cl(s) Pb + 2(aq) + 2Cl -…

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Q: What is the general name for the intermediate of an isomerase-catalyzed reaction? Meta-phosphate 500…

A: Isomerase: A class of enzyme catalyzing conversion of one isomer to another

Q: Question 2 What volume (in mL) would 3.98x1022 Br₂ molecules occupy? The atomic mass of Br = 79.904…

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Q: CH3 CH₂CI NaOH SN2

A: Organic reactions are those in which organic reactant react from organic product. SN2 reaction is…

Q: Identify/name the specific molecule/monomer to the left. What is its chemical formula? Name the two…

A: A carbohydrate is a biomolecule consisting of carbon, hydrogen and oxygen atoms. Carbohydrates are…

Q: How many normal modes (different types of vibrational motion) are predicted for the following…

A: Since, For linear molecule, number of normal modes = 3N - 5 For non linear molecule, number of…

Q: What is the mole fraction of solute when 1.85 mols of ethanol is added to 8.5 mols of water?

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Q: % v/v,% w/v Questions 22. How do you prepare 250 ml of 40% v/v glycerol? 23. How do you prepare 0.3…

A: 22)  Given :-  v/v % Glycerol = 40%  Volume of 40% Glycerol = 250 mL…

Q: Write the chemical formula for the binary ionic compound that will form when calcium and phosphorous…

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Q: A buffer solution contains 0.20 M HCOOH and 0.18 M HCOO™. The pKa for formic acid is 3.75. Calculate…

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Q: A piece of a newly synthesized material of mass 25.0 g at 80.00°C is placed in a calorimeter…

A: Dear student since you have posted multiple questions we will solve the first question for you if…

Q: Write out all the steps in the mechanism of this electrophilic aromatic substitution reaction.…

A: Electrophilic aromatic substitution reactions are those in which an electrophile attacks an electron…

Q: R -sh Question (LY A rigid vessel of volume 0.2m³ contains nitrogen at 0.1MPa and 15°C. If 0.2 kg of…

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Q: HO IZ

A: Loan pair :-  The extra pair of electrons around the atom in the valence shell. which are not used…

Q: knowing that H₂X react in the water like that. H₂ X + H₂O H₂O + H X HX + H₂0 -> H₂0² + x²- Find the…

A: Given: [H2X] = 16 M pKa1 = 3.2 pKa1 = 5.4 We know, pKa = -log Ka So, pKa1 = -log Ka1  3.2 = -log Ka1…

Q: 1. Give the IUPAC name of the following: a. CH3CH2 C. C H/ Cl CH3 CH3CH2CH C=C CH3 Cl H CH2CH3 b.…

A: IUPAC nomenclature: In IUPAC nomenclature  a molecule's longest chain of carbons is taken as parent…

Q: In Part B of the experiment, we will determine the enthalpy, AH, for the reaction by plotting In (k)…

A: Answer: These are the questions based on fundamental understanding of straight line equation and…

Q: B. A 1.0-mol sample of an ideal gas is kept at 0 °C during an expansion from 0.003 m³ to 0.01 m³.…

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Q: For the following compound, what is the correct name?

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Q: 9. A compound has a molecular mass of 120 g/mol, and the information in the table below is the only…

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Q: Predict the hybridization and geometry around each indicated atom. b. CH₂CH=C=CH₂ ↑ a. CH3-C=C-H ↑

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Q: 6) Balance the chemical equation: _CHO+_0→ C0+__H,O

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

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.