Which of the conversion factors is the "center piece", middle step, or "step # 2" of every stoichiometry problem? A. molar volume B. molar mass C. mole ratio D. Avogadro's Number 10 10 10

Q: A solution contains 1.33x10-2 M lead nitrate and 1.17x10-2 M nickel(II) acetate. Solid sodium…

A: “Since you have posted multiple questions, we will provide the solution  only to the first question…

Q: ADDITIVES: (per day) Sodium Chloride as Acetate as Phosphate Potassium Chloride as Acetate as…

A: a) The sodium source is sodium chloride and sodium acetate. Hence, total Na+ = 40 mEq + 60 mEq = 100…

Q: Be sure to answer all parts. Find the pH of the two equivalence points and the volume (mL) of 0.0418…

A: Titration of 17.3 mL of 0.130 M H2CO3 with 0.0418 M KOH.We have to find out the pH of the two…

Q: 5) You need to make 250.0 mL of a buffer with a pH of 4.10, in the chemical storage room you found…

A: Volume of buffer (V) = 250.0 mL = 0.250 L pH of solution = 4.10  Mass of sodium formate = 35.9 g pKa…

Q: Describe the preparation of 2.00 L of 0.108 M BaCI2? 2H2O (244.3 g/mol).

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Q: A solution contains Cr³+ and Mg2+. The addition of 1.00 L of 1.52 M NaF solution is required to…

A: The molarity of NaF is 1.52 M. The volume of the solution is 1.00 L. The total mass of the…

Q: The sun supplies energy at a rate of about 1.0 kilowatt per square meter of surface area (1 watt =…

A:

Q: Write the chemical equation for the decarboxylation of 2-methyl-propanoic acid. Which is formula of…

A: A decarboxylation reaction is a chemical reaction that involves the removal of a carboxyl group…

Q: H2A Li Be Na Mg 3B 4B 58 68 7B 88 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga ho Rb Sr Y Zr Nb Mo Tc Ru Rh…

A: Potassium is 2A group element. It belongs to Alkaline earth metals .

Q: 4) Calculate the pH of a solution that is composed of 90.0 mL of 0.345 M sodium hydroxide, NaOH, and…

A: Volume of sodium hydroxide = 90.0 mLConcentration of sodium hydroxide = 0.345 MVolume of lactic…

Q: A student runs two experiments with a constant-volume "bomb" calorimeter containing 1100. g of water…

A: The given reaction is,  2C2H2(g) + 5O2(g) --------> 4CO2(g) + 2H2O(g)  As heat is released after…

Q: .0 6 7.5 1 Fuo 7.0 m Foo 6.5 1 F-600 6.0 5.5 5.0 4.5 s 4.0 f1 (ppm) 3.5 3.0 2.5 2.0 1.5 3 1.0 0.5

A: Wittig reaction converts aldehydes/ketones into olefins. The stereochemistry of the formed double…

Q: 2) Write the chemical equation for the reaction of ethanoic acid with N-methylethanamine.

A: Given reaction is of esterification and condensation where we loss a water molecule Lone pair of…

Q: What are the principles of flame ionization detection? Was it a good choice for these analytes?

A: FLAME IONIZATION DETECTION  (FID)

Q: What mass of natural gas (CH4) must you burn to emit 263 kJ of heat? Express the mass in grams to…

A:

Q: An analytical chemist is titrating 88.2 mL of a 0.2300M solution of nitrous acid (HNO₂) with a…

A:

Q: 2. What is the purpose of the formation of the Grignard Reagent?

A: Purpose of formation of Grignard Reagent :

Q: Using the equations 2 Sr(s) + O₂ (g) → 2 SrO (s) AH° = -1184 kJ/mol CO₂ (g) → C (s) + O₂ (g) AH° =…

A: Given:

Q: Which of the following solid salts is more soluble in 1.0 M H O a. CaF2 O b. CaCl2 O C. KNO3 O d.…

A: The question is based On the concept of solubility. we need to identify the salts which are more…

Q: The mixture contains benzoic acid, 2-napthol, and naphthalene. Dissolve the mixture in the polar…

A: Atom economy is a measure of the efficiency of a chemical reaction in utilizing the atoms of the…

Q: Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO (s) +…

A:

Q: Consider the reaction H₂(g) + C₂H4(g) →C₂H6(g) Using the standard thermodynamic data in the tables…

A: The balanced chemical equation given is H2 (g) + C2H4 (g) → C2H6 (g) The pressure of H2 (g), C2H4…

Q: Calculate Kp for the reaction 2NOCI(g) reaction is 2.1 x 10-². A) 2.1 x 102B) 1.7 x 103 C) 0.70 D)…

A: The equilibrium constant in terms of concentration and terms of partial pressures of an ideal gas…

Q: Assuming that the octet rule is obeyed, write out the electron configuration for the ion formed by…

A: To solve this problem we have to write the electronics configuration of the given element .

Q: Try to come up with a reasonable step wise mechanism for the following reactions: -Br a.…

A: Grignard reagent is represented as RMgX . It is the organomagnesium reagent used as nucleophilic…

Q: Choose the reaction that illustrates AH° for Ba(NO₂)2. Ba(s) + 2 N(g) + 4 O(g) → Ba(NO2)2(S) O Ba(s)…

A: The enthalpy of formation(∆Hof) of a compound is the enthalpy change for the formation of the…

Q: Calculate the pH at 25 °C of a 0.14M solution of sodium hypochlorite (NaClO). Note that hypochlorous…

A: NaClO is a salt made from a strong base (NaOH) and a weak acid (HClO)

Q: What is the equilibrium constant for the following reaction at 25°C? HPO42– (aq) + H2 O() ⇄ H2 PO4–…

A: We will calculate the equilibrium constant for the following reaction at 25°C?HPO42– (aq) + H2 O(l)…

Q: What must be done to a glucose molecule, in the process of forming cellulose, to form a glycosidic…

A: Every alternate glucose molecule in cellulose is reversed for Beta 1-4 glycosidic bonds. In contrast…

Q: How many unique carbons will correspond the the C NMR spectrum

A: We have to see here the number of unique carbon atoms that means we have to see the total number of…

Q: Balance the following equations. (Use the lowest possible whole-number coefficients. These may be…

A: (a) ClO3− (aq) + As (s) + H+ (aq) + H2O (l) ⇌ HClO (aq) + H3AsO3 (aq) + H+ (aq) + H2O (l) (b) MnO4−…

Q: 7. Find the AHrxn for the reaction: 3C(s) + 4H₂(g) → C3H8(g) Use these reactions with known AH's:…

A: Hess's law states that the heat of the reaction is fixed and it is independent of the path of the…

Q: fter 41.0 min, 18.0% of a compound has decomposed. What is the half-life of this reaction assuming…

A:

Q: CH3 CH₂CH₂CH₂CH₂CH₂ CH3 CH3C- CH3 group group group Retry Entire Group 7 more group attempts…

A: An alkyl is a functional group of an organic chemical that contains only carbon and hydrogen atoms .…

Q: Pepsin is the principal digestive enzyme of gastric juice. A 1.90 g sample of pepsin is dissolved in…

A:

Q: Write the complete electron configuration for the potassium atom. Using the noble gas abbreviation…

A: Potassium atom (K)

Q: A reaction between ammonia and oxygen is the first step in the prepa- ration of nitric acid (HNO3)…

A:

Q: If 52.0 g of AgNO₃ react with 28.6 g of H₂SO₄ according to this UNBALANCED equation below, how many…

A:

Q: Which of the following is NOT a unit of concentration?     mM     Moles/Liter     Molar…

A: Molarity is defined as the moles of the solute present in 1 litre of solution.

Q: For the decomposition of hydrogen peroxide to water and oxygen, H₂O2(g) → H₂O(g) +¹1/202(g) AH =…

A: The reaction given is, => H2O2 (g) ------> H2O (g) + O2 (g)  Given : ΔH° = -106 KJ  And ΔS° =…

Q: How many elimination products can form in the following reaction? ж оооо 3 КОСН3 CH3OH

A:

Q: Solution used to remove the white, hard to remove, substance that sometimes appears on sinks and…

A: Scale is the accumulation of minerals over time on a surface which leaves white or gray deposits.

Q: Draw a polymer chain segment of a copolymer formed when the two monomers given below are polymerized…

A: Copolymer:- Polymer which is derived from two or more types of monomer.

Q: (a) 2-methyl-2-pentanol Draw the structure of the alkene that was used to prepare the alcohol in…

A: A question based on reactions of alkenes. Name of an alcohol product is given that is to be matched…

Q: H₂C HBr in OH Br 1-bromo-1-methylcyclohexane major product 1-methylcyclohexyl acetate. minor product

A: SN1 reaction involves the stable carbocation intermediate. It prefer stable carbocation.

Q: Suppose you measure out 0.0132 moles of ammonium sulfate on the balance. If the weigh boat…

A:

Q: Answer the questions below about the highlighted atom in this Lewis structure: H :0: | || <-C-C-O-H…

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Q: Select the single best answer. The equilibrium constant, K, for the formation of nitrosyl chloride…

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Q: What is the pH of a solution prepared by mixing 35 mL of 0.089 M Ba(OH)2 and 47 mL of 0.37 M KOH?…

A: For Ba(OH)2 solution, Concentration of Ba(OH)2 solution = 0.089 M = 0.089 mol/L Volume of Ba(OH)2…

Q: (b) 1,2-hexanediol Draw the structure of the alkene that was used to prepare the alcohol in highest…

A: Diols are prepared from the oxidation of alkenes by the oxidizing agents like KMnO4 and OsO4.

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".