In chemistry, the pH of a solution is a measure of the acidity or alkalinity of a solution.  Water has a pH pH of 7 and, in general, acids have a pH less than 7 and alkaline solutions have a pH greater than 7.  Find the pH of a solution with a hydronium ion concentration of 6.7×10−9 moles/liter

Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…

A: Given,  Concentration of left galvanic cell =1.50 M  Concentration of right galvanic cell = 75 mM

Q: What is the concentration of Mg  ion in a solution that contains 75.0 micro grams of the ion in 500…

A: we have to calculate the concentration of Mg ion in the solution

Q: A certain metal M forms a soluble nitrate salt M(NO3)3. Suppose the left half cell of a galvanic…

A: A question based on electrochemical cell. A concentration cell with different concentrated M(NO3)3…

Q: The solubility of CaCO3 in water is 15mg/L. Which of the following mass of CaCO3 will form a 20 L…

A: Given, Solubility of CaCO3 in water = 15 mg/L Volume of the solution = 20 L mass of CaCO3 = ?

Q: A hydrochloric acid solution has Na2CO3 (Molar Mass = 106) titer of 0.00940 g/ml. Calculate the…

A: Answer : as per the data titer is  0.00940 g/ ml mole  = mass /  molar mass mole of Na2CO3 = 0.00940…

Q: A fixed sample of gas exerts a pressure of 598 Torr at 334 K. What will the pressure be (in atm) if…

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Q: D-Talose is a C2 epimer of D-galactose. Using the Fischer projection structure, draw the product of…

A: D-Talose is a C2 epimer of D-galactose. Using the Fischer projection structure. 1.Reaction with…

Q: It is observed that Ni, with an atomic mass of 65.9291 u, decays by emission. Identify the nucleus…

A: When the number of neutrons in the nucleus exceeds the number of protons, beta minus particle (β-)…

Q: In Fischer projections, the horizontal bonds represent groups projecting forward (on wedges) and the…

A: The Fischer Projection consists of both horizontal and vertical lines, where the horizontal lines…

Q: For the following combustion reaction CH₃COCH₃(l) + 4O₂(g) → 3CO₂(g) + 3H₂O(g) ∆H = -1.79 × 10³ kJ…

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Q: 7:43 ← Question 35 of 35 O Draw the enolate anion and the ester that would be needed to make this…

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Q: 1. Draw condensed structure formulas for the following compounds. cyclohexene cyclohexane toluene

A: condensed structural formula, every carbon atom is represented individually, and the following…

Q: How many moles of carbon tetrachloride can be produced when 4.0 moles of chlorine gas react…

A: Given data: The moles of chlorine gas reacted=4.0 mol. To find: The moles of carbon tetrachloride…

Q: Identify these elements based on their locations in the periodic table. Give the symbol, not the…

A: We can solve the given question and can find the elements by clearly observing the groups and…

Q: If a solution has a pH of 5, what is the [OH-] of that solution?

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Q: Define the covalent bonding of atoms. With the aid of diagrams, show the covalent bonding of…

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

Q: Answer the following based on "like dissolves like." Will C5H12 mix with C6H6? [Select] Will NH3 mix…

A: Like compound dissolve like means, polar dissolve in polar compounds. Non-polar compounds dissolves…

Q: Using the rate constant from the previous step and the initial concentration of NO of 0.750 M at…

A: Part d) Given: Initial concentration of NO =0.750 M To determine: Concentration of NO at time t=10…

Q: Calculate the amount of heat needed to melt 22.2 g of solid octane (CgH₁g) and bring it to a…

A: Given: Mass of solid octane (m) = 22.2 g Final temperature = 69.4oC Known: Heat of fusion of octane…

Q: A 8.33 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: 34. a. b. C. d. e. Calculate the standard emf (E°rxn value) for the reaction shown below using the…

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Q: 16. Match the pictures in each question with the descriptions of solubility

A: Blue positive speheres = cation  Yellow negative spheres = anion  All the cations and anions are…

Q: If the rate  of the  disappearance of H2 is 1.50 M/s what will be the rate of formation of ammonia ?…

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Q: A tire pressure gauge reads 33.0 pounds per square inch How many kPa is this? Remember that multiple…

A: Pressure gauge reading = 33.0 psi (pounds per square inch)

Q: Please provide the product for this reaction.

A: The epoxide ring opening takes place with the Grignard reagent. The nucleophile of the Grignard…

Q: Find the temperature at which K = 42.0 for the reaction H₂(g) + I2(g) 2HI(g). [Given: at 25°C, for…

A: We will first calculate ∆S° and ∆H° , then calculate temperature.

Q: A proton is accelerated to 47.3 MeV per particle. What is this energy in kJ/mol?

A: Given : acceleration = 47.3 MeV

Q: 8 To prevent spoilage, food can be irradiated with gamma rays from Coblat-60 isotopes. The half-life…

A: Given that, The half-life of cobalt-60 is t1/2 = 5.3 years. The initial amount of cobalt-60 is a0 =…

Q: Imagine a newly appointed chemist in the Walgreens you work at has to prepare 200ml of  a 0.05M…

A: The given are, The Volume of the KCl solution is = 200 ml = 0.2 L The molarity of the KCl solution =…

Q: The specific heat of substance C is 0.93 J/(g K) and that of substance D is 1.8 J/(g K). You are…

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Q: You make a solution using 12.35 g of a solute and 342.15 g of water as your solvent. What is the…

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Q: Classify each chemical reaction: reaction HI (aq) + NaOH(aq) → Nal (aq) + H₂O(1) Na₂CO₂ (s) →…

A: In a Rxn , When two or more substances combine to form a new substance then this type of reaction is…

Q: 24. Below, draw the Lewis dot structure of CO32- and additional one resonance structure; be sure to…

A: Carbonate ion CO3 2- is trigonal planar molecule with 120 degree bond angle and SP2 hybridization.

Q: A common rule of thumb is that raising the temperature 10 degrees (e.g., from 220.0 C to 230.0 C)…

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Q: Calculate the energy required to heat 1.90 kg of water from 35.1 °C to 49.1 °C. Assume the specific…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…

Q: 24. A water sample contaminated with MgCO3 (MM = 84 g/mol) has hardness value of 840 PPM What is the…

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Q: Calculate the volume in liters of 40 moles of toluene. 0.87g/ml densi

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Q: Br Br 1. NaNH2, A 2. H3O+ Select to Draw

A: This is dehydrohalogenation reaction. NaNH2 is strong base

Q: An element has three stable isotopes with masses of 27.977 amu, 28.976 amu, and 29.973 amu. The…

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Q: A sample of hydrogen gas is placed in a solid steel chamber (rigid walls) with a volume of 4.25 L.…

A: Given -> Initial volume (V1) = 4.25 L  Initial temperature (T1) = 25.0°C = 25.0 + 273 = 298 K…

Q: 1-3 4. Which of the following resonance structures is most stable (favored)? Note: formal charges…

A: Structure I and II are resonance structures of the compound SOCl2 .

Q: What mass of zinc (in grams) is deposited at the cathode when a current of 9.4 amperes passes…

A: According to the first law of Faraday, the mass of a metal deposited on the cathode during…

Q: Explain water in the environment

A: Water is central to sustainable development and essential for socio-economic development, healthy…

Q: When an aldose is oxidized, the aldehyde functional group (-CHO) is converted into a Multiple Choice…

A: Ans. Correct option is -COOH

Q: In the reaction below give the mol to mol ratio between the underlined species. Heat CaCO, (s) He…

A: In the given reaction calcium carbonate decompose into calcium oxide and carbon dioxide in the…

Q: Determine the oxidation number of the chromium in an undetermined salt solution if electrolysis of a…

A: In the given problem, first we need to find out number of moles of electrons involved in the…

Q: sample of gas has a pressure of 99.7 psi. What is this pressure atm? (recall that 4.7 psi = 1 atm)…

A: Psi = pound per square inch.                              14.7 psi = 1 atm

Q: Hydrogen peroxide decays into water and oxygen  H2O2(aq)  --->  H2O(l)  +  1/2 O2(g) If we begin…

A: The rate constant for the decomposition of hydrogen peroxide to hydrogen gas and oxygen gas is given…

Q: a b. C. d. 27. e. The kinetics of the reaction, 4 HBr(g) + O2(g) → 2 H₂O(g) + 2 Br2(g), was studied…

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Q: Given the following reaction: NaOH   +   HCO2H   --->   H2O   +   HCO2-   +   Na+ If you had equal…

A: We are provided a chemical reaction of a strong base sodium hydroxide with a weak acid acetic acid.…

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".