How many grams of Zn are there in a sample of Zn that contains 4.33x1023 atoms? grams

Q: 10. Consider the following compounds when answering the questions below. Assume these compounds can…

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Q: 6 e molecule shown below will either: 1) Undergo an acid-base reaction by losing a proton (bolded H)…

A: Here we check for the aromaticity of product to check its stability

Q: N. The names of polyatomic ions often need to be memorized. However, ionic compounds with polyatomic…

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Q: 1125 mL of a 0.75 M All solution was mixed with 920 mL of a 0.4 M NaCl solution. What is the [I]…

A: Given,  The molarity of AlI3 = 0.75 M.  The volume of AlI3 = 1125 mL.  The molarity of NaCl = 0.4 M.…

Q: Enter the symbols for the ions of magnesium and iodine. Enter the lons formed by these elements and…

A: Magnesium is group 2 alkaline earth metal having atomic no 12. Iodine is group 17 element having…

Q: O

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Q: If this reaction is conducted with 57.4 g CoCl₂ and 42.0 g F₂, how many grams of I mol Cla= 129.8…

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Q: +NH3-Gly-Lys-Ser-Arg-COO- (pH=13)

A: At pH = 13 it will have only negative charge at COOH group. Because in basic medium proton is…

Q: 12. Sulfuric acid is an important industrial chemical that is usually produced by a series of…

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Q: Calculate the molarity of the following solution: a 1.80 L of solution contains 0.783 mol of solute.…

A: Molarity is defined as number of moles of solute divide by volume of solution in liter

Q: Enter an orbital diagram for Fe³+. Drag the appropriate labels to their respective targets. Labels…

A: Since, For the representation of orbital diagram, first write the electronic configuration. Thus,

Q: The following electron configurations are to be used for questions 26-30! A. 1p³ B. [Xe] C. 1s²…

A: Electronic configuration : It is the distribution of electrons in atomic orbital according to the…

Q: 4. Based on Zaitsev's rule, write the major/minor products, as well as the side product, for the…

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Q: Gven Sodium Chlorides there a 1.90 M is 250m2 of aquedry Solution Find the of Sodium chloride. Find…

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Q: Table LC.3: Equilibrium Response for Iron Thiocyanate Reaction Analysis of equilibrium response to…

A: This question can be answered on the basis of Le Chatelier's principle which states that if a…

Q: Draw the structure of the product that is formed when the compound shown below undergoes a reaction…

A: When benzaldehyde react with (CH3)2CHMgI and then is treated with water it form a 2° alcohol.

Q: (a) - . .CH=O (b)

A: 10. We have to carry out the following transformation (a) and (b).

Q: What is it called when an unstable nucleus decays to small and more stable nuclei?  radioactive…

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Q: Q12. A sealed flask containing nitrogen dioxide gas was maintained at 300-degree C. The…

A: We need to determine average rate of reaction with help of production of Oxygen.

Q: 1. 2. 3. Which of the following is the strongest oxidizing agent? A) F- B) Lit C) Cu D) Mg Iodide…

A: 1) option E is correct here MN present in +7 oxidation state so it has ability to oxidize other s…

Q: Use the References to access important values if needed for this question. What would you multiply…

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Q: What mass of sodium hydroxide is required to create 750 mL solution with a pH of 12.00.

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Q: Which of the following substances can be used to make a buffer with Na2SO3? Oa) H₂CO3 Ob) NaC₂H302…

A: Buffer solution is defined as a solution of a weak acid and its conjugate base.

Q: 20. If atoms with the Lewis symbols shown below are combined, what is the formula of the ionic…

A: The ionic formula of the above compounds can be calculated as follows

Q: The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown.…

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Q: Write the equilibrium constant expression for each of the following reactions and classify the…

A: Homogeneous reaction , any of a class of chemical reactions that occur in single phase  i.e. solid ,…

Q: Calculate the concentration of a solution made by dissolving 2.65 grams of CaCl₂ in enough water to…

A: Molarity :    Molarity is one of the unit of concentration. It can be defined as the number of moles…

Q: Calculate the percent by mass, mole fraction of H₂SO4 and molality of an 18.0 Molar solution of…

A: here we are required to find the mass percentage, mole fraction, molality of 18M of H2SO4

Q: It takes 35.0 mL of 0.50 M NaOH to neutralize 20. mL of H2SO4, determine the concentration of the…

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Q: 9. Indicate how to perform the following transformations (A - P). L OH 21/o alto OH M 50143 %// H CI…

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Q: What volume, in L, is occupied by 10.0 g O₂ at 298 K at 0.900 atm? SED

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Q: Name fag CH4 1 Carbon + 4 Hydrogen Covalent

A: Covalent Bond  :  A covalent bond is a chemical bond that involves the mutual sharing of one or more…

Q: Question 38 (2 points) In the titration of a solution of sodium hydroxide, an acid titrant was…

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Q: 6. What is the pH of a mixture of 5 ml of 0.1 mol/litre sodium acetate and 4 ml of 0.1 mol/litre…

A: Solution: In this problem we will calculate pH using henderson equation.

Q: 7. A balloon is inflated to 344 mL at a temperature of 55°C. The volume of the balloon decreases to…

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Q: The image below shows a portion of a ¹H NMR spectrum (ppm). Choose the partial structure that best…

A: By applying 2nI +1 rule  we have : where I = spin of H atom . Then

Q: C. d. e. CH3. H CH2-CH3 (use cis/trans prefix when naming) ОН OH C Br Н

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts…

Q: Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free…

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Q: Which of the following concentrations of sodium acetate will produce the most effective buffer when…

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Q: The Ka of a weak monoprotic acid is 1.13 × 10−5 . What is the pH of a 0.0885 M solution of this…

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Q: What aldol addition product is formed from each of the following compounds?

A: We need to give the aldol addition product of given compound.

Q: Determine the [OH-], pH, and pOH of a solution with a [H+] of 0.0076 M at 25 °C. [OH-] = pH = pOH =…

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Q: Would going through a dehydration reaction of 2-butanol yield a pure alkene or a mixture of alkenes?

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Q: How much methane is required to produce 55.0 g of carbon dioxide, when burned in excess oxygen?

A: Dear student , since you have posted multiple questions we are allowed to solve only first question…

Q: A sample of HI was placed in container and the following reaction was allowed to come equilibrium.…

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Q: The formula for disulfur decafluoride is S₂ F 10. a. How many grams of sulfur are present in 3.63…

A: Here, we have to find the mass of sulfur that is present in 3.63 moles of S2F10 and the number of…

Q: 1. You know that these types of compounds can be analyzed by either GC or HPLC but you are told by…

A: GC can only apply to  analyse volatile substance while HPLC can handle any soluble compound…

Q: The length of a covalent bond depends upon the size of the atoms and the bond order. For each pair…

A: As the size of the bonded atoms increases bond length also increases  As the size of the bonded…

Q: The pKa of hypochlorous acid is 7.530. A 58.0 mL solution of 0.126 M sodium hypochlorite (NaOCI) is…

A: The balanced equation for the reaction of NaOCl(aq) with HCl is: NaOCl(aq) + HCl(aq) → HOCl(aq) +…

Q: 10. Propose reasonable syntheses of the following compounds using carboxylic acid Y and any…

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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.