How many ions of sodium are in the 71.0 g Na₂SO4 sample?

Q: 1. List two forms of kinetic energy and two forms of potential energy shown in this picture. B ii.…

A: When a man is archery, two forms of kinetic energy and two forms of potential energy are:   Forms of…

Q: Consider the following chemical equilibrium: C(s) + 2 H₂ (8) CH4 (8) P Now write an equation below…

A: Answer: KC is equilibrium constant value for molar concentration of reactants and products and KP is…

Q: explain what is meant by the statement, "the carbon-metal bonds of organolithium and organomagnesium…

A: A carbanion is a negatively charged species in which a carbon atom has an unshared pair of…

Q: There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What mass of Cl…

A: Given: Atoms of chlorine in the sample = 1.8×1024 Molar mass of Cl = 35.5 g/mol

Q: 6) How many joules are given off when 120 grams of water are cooled from 25 °C to -25°C?

A:

Q: Procedure I. Preparation of acetate buffer solutions with different pH values 1. Calculate the salt…

A: To prepare an acetate buffer solution, we need to mix a weak acid (acetic acid) and its…

Q: 4) Write the products for the following Diels-Alder reactions. a) b) H H₂C 910 'H 3=0 CH₂ hest…

A: Diels-Alder reaction: It is a [4+2] cycloaddition reaction between a diene and a dienophile in the…

Q: 17. Draw a reaction coordinate diagram for a reaction that is exergonic (exothermic), has two…

A: Reaction coordinate - A graph drawn between energy and progress of a reaction known as reaction…

Q: What is the density of ethylene carbonate at 150 C ?

A: Ethylene carbonate is a colorless and odorless liquid that is soluble in water and many organic…

Q: YOUR TASK: . Calculate the molar mass for glucose (C6H₁2O6) to use in your expression. • Setup…

A: No. of moles of a substance can be calculated by dividing the mass of the substance with Molar mass…

Q: How many ions of S are present in 1.0 mole of Al2S3? [?]×10 Sions X

A:

Q: Name the following alkane

A: IUPAC naming rules : 1. Find the longest chain of carbon atoms and number them. 2. Identify the…

Q: 3. What is the role of bromide anion in this reaction? + Br: B) A) Lewis base that donates electrons…

A:

Q: Consider the reaction Br₂ + H₂➡➡➡ 2HBr The bond dissociation energies are 194 kJ/mol for Br₂, 436…

A: Solution: We know any chemical reaction involves some bond-making as well as the bond-breaking…

Q: student determines the heat of dissolution of solid cesium bromide using a coffee-cup calorimeter of…

A:

Q: Consider the following chemical equilibrium: 2 PbO (s) + O₂(g) 2 PbO₂ (s) Now write an equation…

A:

Q: in the Identify the functional groups found side chain the R-group polarenentral polar charged, or…

A:

Q: Suppose a 500. mL flask is filled with 1.0 mol of Br₂, 1.8 mol of OCl2 and 0.40 mol of BrOC1. The…

A: Answer: In this question we have to find out the equilibrium molar concentration of BrOCl with the…

Q: 2. The synthesis of sodium chloride occurs according to the reaction: Na(s) + Cl₂(g) → NaCl(s) What…

A: At STP (standard temperature and pressure), the volume occupied by 1 mol of gas is 22.4 L. The given…

Q: Choose the correct ΔH0reaction for the reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) +  6 H2O(g) Compound…

A: The standard enthalpy change of reaction (ΔHoreaction) can be calculated by subtracting the sum of…

Q: A 5.00 L tank at -9.7 °C is filled with 16.4 g of dinitrogen monoxide gas and 17.4 g of carbon…

A: Mole fraction of different gases can be calculated by knowing the total moles of gases and the moles…

Q: Above is a lab i just did. I am struggling on putting a conclusion together wrapping it all up. Can…

A: The lab demonstrated the process of converting concentration units, such as from molarity to…

Q: 11. Consider other resonance structures for the compound shown. On which atoms can the positive…

A:

Q: The measurement 0.0000043 m, expressed correctly using scientific notation, is Answer format:…

A: Given, The measurement 0.0000043 m, expressed correctly using scientific notation, is ______.…

Q: Give the missing reactant: CO,CH, | O A. I O B. II O C. III O D. IV + [ ² ] ? || heat 4 CO₂CH3 IV

A: Answer:- This question is answered by using the simple concept of chemical reactions of organic…

Q: How many grams of solid calcium cyanide, Ca(CN)₂ must be added to 400.0 ml of 0.350M hydrocyanic…

A: Henderson-Hasselbalch equation is used for the pH of buffer solution. pH=pKa +logconjugate baseweak…

Q: Part 1: Identify ALL functional groups present in each molecule. a. b. C. CH₂ CH3CH₂CO₂-C HO CH3-C-H…

A:

Q: Which of the reactions shown can be used to make the given compound? С.Хосно O O O O i ů OH H OH…

A: To solve this problem we have to identify the given reaction which will give the desired products.

Q: Describe the difference between potential energy and kinetic energy.

A: Kinetic energy is the energy which is present in any substance by virtue of its motion.  potential…

Q: Pls name these four compounds pls name all four ASAP PLS I HUMBLY Request.

A: According to the IUPAC nomenclature, First longest chain of carbon atom is identified. Numbering is…

Q: a. What is the pH of a buffer solution that is 0.28 M NH3 and 0.28 M NH4+? K for NH3 is 1.8 × 10-5…

A: Given :  a.  Concentration of NH3 = 0.28 M  Concentration of NH4+ = 0.28 M  Kb of NH3 = 1.8 x 10-5…

Q: .a. .b. .C. For each solution below, indicate if it is a buffer. A solution that is 0.10 M NH4C₂H₂O₂…

A: a. A solution that is 0.10M NH4C2H3O2 and 0.10M NH3(aq) Yes, the given solution is a buffer…

Q: Exactly 25.0 mL of a 0.3757 M solution of Na3PO4 is mixed with 100.0 mL of 0.5151 M HgNO3. What…

A: We have to calculate  mass of Hg3PO4  formed concentration of the unreacted species after the…

Q: What is the speciation of lead in its most toxic form?

A: Lead can exist in several chemical forms, but the most toxic form of lead is typically considered to…

Q: 5. Which hydrogen is most acidic? На На 15/3 Ha Hb OMP Hb SP Hc -Hс Hd

A:

Q: Be sure to answer all parts. Name the following using the IUPAC Nomenclature System: a)…

A: This question belong to Nomenclature of organic Compounds.

Q: CH3 Br₂ DTBP 100 °C Cl₂ DTBP 100 °C

A:

Q: For each of the following species, determine (a) the electron geometry and (b) the hybridization for…

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Q: N D C B 120 A b) B A

A: Miller indices is basically notation system that present in crystallography for planes in crystal…

Q: Give the organic product formed. ● A. I x x x x IV B. II x.d X C. IIIX D. IV heat E ? |||

A: Diels-Alder reaction: It is a [4+2] cycloaddition reaction between a diene and dienophile in the the…

Q: • Which is your favorite fruit? Apple or Orange? Refer to Carboxylic Esters in your reading, to…

A: Refer to Carboxylic Esters in your reading, to express your opinions on the connection between…

Q: A certain drug has a half-life in the body of 3.0 h. Suppose a patient takes one 250. mg pill at…

A: Given , mass of pill = 250 mg half life of drug = 3.0 h

Q: 2. In step 3, the reaction mixture will be analyzed by TLC to determine if the reaction is complete.…

A: In TLC (thin layer chromatography), the Rf value denotes the ratio between the distances traveled by…

Q: In a constant-pressure calorimeter, 70.0 mL of 0.300 M Ba(OH)₂ was added to 70.0 mL of 0.600 M HC1.…

A: The question is based on the concept of chemical thermodynamics . we have been given experimental…

Q: Oxidation of CH3COO to CO₂ and reduction of Cr₂O72- to Cr3+ CO₂ Cr 3+ CH3COO Cr₂O7²-

A: Given that, The reduction half-cell reaction is Cr2O72- → Cr3+. The oxidation half-cell reaction is…

Q: 7. Consider the following equilibrium: stable pase + = + NH Least stable Is benzene (C6H6) an…

A: The pKa of benzene is around 44 and the pKa of amine is around 38. The smaller the pKa the stronger…

Q: How many moles of ASC13 are present in 460.0 g of a 41.0 ppm AsCl3 solution?

A: The question is based on mole concept. we have to calculate moles present in given quantity of…

Q: Mass of empty evaporating dish (g) Volume of NaCl solution (mL) Mass of dish and NaCl solution (g)…

A: Molarity is number of moles dissolved in per litre of the solution

Q: 4. Two containers are attached together as shown with a valve between the containers. The 26.0 L…

A: Given, Initially: when valve between the two container is closed. Note: 47.0 L container does not…

Q: Write a balanced chemical reaction for this reaction: 2.46 g barium(s) plus 3.89 g bromine(l) in…

A: Mass of barium (s) = 2.46g  Mass of bromine (l) =3.89g

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.