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Q: Convert a mass of 146 g of sodium nitrate, NaNO3 into moles.  Hint: use Molar mass as a conversion f...

A: Given,  Mass of sodium nitrate, NaNO3 = 146 g  Molar mass of NaNO3 = 23+14+(16x3)                   ...

Q: Which of the following elements has the smallest ionization energy?      Li     Na     Be    ...

A: Li  , K , Na and Rb belong to same group and among them Li has highest ionisation energy and Rb has ...

Q: Compound(central atom has more than more 4 electron pairs: XeF2   Valence electrons: Bonds: Lone...

A: Given : Compound XeF2 To find: Valence electrons,Bonds,Lone pairs,Electron geometry,Molecular geomet...

Q: What does a Claisen Condensation do? A) Make a new C=C double bond next to an existing C=O double bo...

A: The Claisen condensation is one type of condensation pathway in which two ester or one ester with an...

Q: Compound: H3O-   Valence electrons: Bonds: Lone pairs: Electron geometry: Molecular geometry: ...

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Q: A student was asked to react silver nitrate with sodium during a stoichiometry lab. The student reac...

A: Given reaction: Na2SO4(aq) + 2 AgNO3 (aq) → Ag2SO4(s) + 2 NaNO3(aq) The mass of silver nitrate taken...

Q: Eto CH, Propose a sequence of reactions to synthesize the target compound below from the indicated s...

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Q: calculate the ratio of effusion rates for argon and neon gases 1.19 : 1 0.711 : 1 0.505 : 1 or ...

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Q: 4. Draw the structure of product, substrate or condition in the following reactions (should clearly ...

A: Given are organic reactions.   

Q: What is the overall reaction order for the following rate law: Rate = k[A][B][C]²

A: The given rate law is k[A][B][C]2

Q: Predict if the following pairs of ions will undergo reaction or not, based on solubility at 25°C. If...

A: Interpretation: We have to determine whether the reaction will take place or not.

Q: A Newman projection of methylcyclohexane is shown below. Identify the which atoms will provide steri...

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Q: Compound: BF4-   Valence electrons: Bonds: Lone pairs: Electron geometry: Molecular geometry: ...

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Q: A Newman projection of a disubstituted cyclohexane is shown below. etermine which of the following 2...

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Q: Polonium-210 is a radioactive substance with a half-life of 138 days. If a nuclear facility is handl...

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Q: Data:. Mass of Salicy lic acid : 3.0419 Theoretical Yicld of Aspirin: ? Mass of crude aspirin: 3.033...

A: When salicylic acid is treated with acetic anhydride then O-acetyl salicylic acid commonly known as ...

Q: Why is acetic acid more acetic than propanionic acid?

A: Explanation for the more acidic nature of acetic acid compared to the propanionic acid

Q: m/s C = E = h > S1 kg hx c E m-1 %3D unitless J-s

A: In this question, we will see the unit of each symbol.  You can see the answer below.   

Q: Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equa...

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Q: Y Dilute sulphum

A: Interpretation : We have to tell the direction of flow of electron in voltaic cell.

Q: According to the Arrenhius theory, an acid is: O a. a substance that forms hydroxide ions O b.a prot...

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

Q: The pH of a solution is 6. What is the pOH? pOH = %3D What is the hydrogen concentration? [H*] = Is ...

A: Formula ;     pH + pOH = 14.  Given ; pH = 6.        pOH = 14 - 6                 = 8.  

Q: At a steady current of 5 A and a time of 20 minutes, which of the metal will deposit more metal at t...

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Q: When adding 80mL of water directly to 20mL of a 0.40M sodium chloride (NaCl) solution, we obtain a s...

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Q: a https://app.101edu.co Question 14 of 15 Submit A solution of phosphoric acid (H,Po) with a known c...

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Q: A galvanic cell is made of cadmium in 1.0 M CdCl2 and lead in a 1.0 M PbCl2 solution with NaNO3 as t...

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Q: Which among the following alcohols is the best fuel to use? a. 1-Hexanol b. 1-Propanol c. 1-Heptan...

A: Alcohol are used as a fuel for internal combustion engines. chemical formula for alcohol fuel is CnH...

Q: The pka of HCN is 9.21. Would this substance be best used for preparing an acidic, basic or neutral ...

A: Given: pKa of HCN = 9.21   

Q: Which of the following elements has the greatest electron affinity (largest positive value)?      ...

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Q: Calculate the pH of the solution resulting from 2.10 x 10-2 mol HCl being added to 250.0 ml of a buf...

A: As ,  we know  Molarity = moles / Volume ( in L )  So, moles are calculated as : Moles = Molarity × ...

Q: Calculate the molar solubility of the compound MCl at 298 K where M is unknown meta given that ΔG° =...

A: The solubility reaction given is, => MCl(s) ⇄ M+(aq) + Cl-(aq) Given: ΔG° = 68.0 kJ/mol = 68000 J...

Q: mist prepares a solution of copper(II) fluoride  CuF2  by weighing out  0.07319g  of copper(II) fluo...

A: We have to find concentration in g /L  It is given that 0.07319 g CuF2 in 500 ml solution.

Q: Is the following reaction reactants-favored or products-favored. Explain your reasoning. N2 (g) + 3...

A: Kc is the equilibrium constant in terms of concentration. It can give idea about the reaction. If t...

Q: Calculate ΔG for the following equation: 6Cl2(g) + 2Fe2O3(s) -> 4FeCl3 (s) + 3O2 (g)

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Q: Compound(central atom has more than more 4 electron pairs: PF3   Valence electrons: Bonds: Lone ...

A: For PF3 compound answer the following--

Q: Consider the figure below which shows a plot of the ΔG° of a chemical process against the absolute t...

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Q: Using any data you can find in the ALEKS Data resource, calculate the equilibrium constant K at 25.0...

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Q: Drow the structure corresponding to the following nomes. If the nome is in correct give the proper l...

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

Q: What mass of chromium could be deposited by electrolysis of an aqueous solution of Cr2(SO4)3 for 143...

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Q: Consider the titration of a 22.5 mL sample of 0.128 M RbOH with 0.155 M HCl. Part A: Calculate the...

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only....

Q: Which of the following is true ?   X. Exothermic reactions are spontaneous because formation of prod...

A: Interpretation: We have to tell which statement is true.

Q: 14. Suppose the boiling point of a 20 mL pure solvent and the solution was found to be 70.00°C and 7...

A: Here we have to apply ∆Tb=Kbm ∆Tb is difference in boiling points between solvent and solution kb is...

Q: Utiliza los valores de potenciales estándar de media celdas reacción que ocurre en un proceso electr...

A: We know that the standard cell potential is given by : E 0 Cell  = E 0reduction + E 0oxidation  Wher...

Q: For many purposes we can treat methane (CH,) as an Ideal gas at temperatures above Its bolling polnt...

A: Given: The temperature of a methane gas sample is raised from -21.0 oC to 13.0 oC. The initial press...

Q: 0.369 mol AgNO3 and 2.14 mol NH3 were added to enough water to give 1.00 L of solution at 25 °C. Cal...

A: Given: Moles of AgNO3 dissolved = 0.369 mol. Moles of NH3 taken = 2.14 mol. And volume of solution =...

Q: Consider the reaction of sodium metal and water. 2Na(s) + 2H20(1) → 2NaOH(aq) + H2 (g) AH = -369 kJ ...

A: 2Na(s)+2H2O(l) --->2NaOH(aq)+H2(g) ∆H = -369KJ On reversing the direction of reaction, sign of en...

Q: 15. Predict the effect of the following changes on the reaction in which SO3 decomposes to SO2 and O...

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Q: a 24.3 g block of metal is cooled to 4.58 degrees celsius before being placed in 162.5 g of water. t...

A: Given: Mass of metal = 24.3 g. Initial temperature of metal = 4.58 oC Mass of water = 162.5 g Initia...

Q: How could you synthesize A from benzene and methyl propanoate? A 身

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Q: The following graph was prepared using measured vapor pressures (in torr) above liquid HNO3 at vario...

A: The ln(Pvap) v/s 1/T curve given is,  

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.