How many sodium ions are present in a 1.73 L solution of 0.638 mM Na2SO4? Report your answer using scientific notation (1.23e4).

Q: Which statement is true regarding the modern quantum mechanical model of the atom? 1.)Its solutions…

A: Quantum mechanics is a the study at microscopic level. (Do not follows Newton's law) Classical…

Q: C(s) + O₂(g) → CO₂(g) AHrxn=-393.5 kJ/mol H₂(g) + 1/2O₂(g) → H₂O(1) AHxn = -285.8 kJ/mol CH4(g) + 2…

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Q: trogen monoxide and hydrogen react to form nitrogen and water, like this: 2 NO(g) + 2H₂(g) N₂(g) +…

A: Kp is equilibrium constant of reaction and It is used to express the relationship between product…

Q: Use the values found in Thermodynamic Properties to determine AS°, AH° and AGO at 298 K for the…

A: We are given ∆S° = 180.4 J/Kmol  = 0.1804 kJ/Kmol ∆H° = –905.4 kJ/mol and, ∆G° = – 959.4 kJ/mol at…

Q: How many milliliters of a 5.90 MM NaOHNaOH solution are needed to provide 0.325 molmol of NaOHNaOH

A: Given -> Molarity of NaOH = 5.90 M  Mole of NaOH = 0.325 mole

Q: What is the density of argon gas (Ar) at 2.01 bar and 25.3 °C? Express your answer in g/L.

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Q: What would you expect the observed colour of a solution to be, Whose maximum wavelength of…

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Q: Suppose 1.84 g of lead (II) acetate is dissolved in 300. mL of a 31.0 m M aqueous solution of…

A: First we would calculate moles of lead acetate using its mass and molar mass.  Then using mole ratio…

Q: Any anion which is the conjugate base of a weak acid is itself basic. O True False

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Q: 6.) Calculate the concentration (N) of arsenic acid (H3A504) in a solution if 25mL of that solution…

A: Given For arsenic acid solution: Concentration of arsenic acid solution = ? Volume of the arsenic…

Q: MnO₂ + CrO3 → Mn + CrO4 CONTENT SHOULD BE THESE OXIDIZED REDUCED BASIC SOLUTION CHECKING

A: This is a redox reaction means oxidation and reduction occur simultaneously.

Q: What is the chemical formula for the structure that is formed after citric acid donates its protons?…

A: Citric acid is tricarboxylic acid that means it has three carboxyl functional groups. Acid has…

Q: Write an acceptable IUPAC name for the compound below. Include 'cis' and trans' as part of the name…

A: Since, Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more…

Q: What are the major substitution products formed in the following reaction? H3C CH3CH₂OH heat Major…

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

Q: - Determining the volume of base needed to titrate a given mass... A chemistry student weighs out…

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Q: find Ag+ and molar solubility please

A: We need to find the concentration of Ag+ and the molar solubility of Ag2CO3 (s).

Q: 2.) How many mi ut HNO3 concentrate are needed to prepare 250 ml of solution, the percent by volume…

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Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) SO2 + O2 → SO3 CONTENT SHOULD BE THESE…

A: This is redox reaction where reduction and oxidation occur simultaneously.

Q: The reaction A(g) ──> 2B(g) has an equilibrium constant Kc = 1.0 at a given temperature. If a…

A: Chemical equation :  A(g) ──> 2B (g)  Kc = 1.0

Q: 50. The angle iron shown to the right is made of steel with a density of 7.78 g/cm³. What is the…

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Q: The pH of an aqueous solution of NaC₂H3O2 is (Hint: Split the compound apart into separate ions,…

A: The given compound: NaC2H3O2  The compound is a salt . When we dissolve the salt into aqueous…

Q: 6. Patients suffering from chronic lung disease often rely on portable tanks of compressed O₂. The…

A: Here we have to use ideal gas equation and van der Waals gas equation.

Q: o For the cell shown, the measured cell potential, Ecell, is -0.3575 V at 25 °C. Pt(s) | H₂(g,0.793…

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Q: Using Freundlich Relation. If 100 ml of 0.5 M HA (MM = 60 g) mixed with 0.9 g charcool after…

A: Freundluich equation is an empirical relationship between the quantity of a solute adsorbed onto the…

Q: Draw the conformation around relevant energy diagram and newman for the below isomer with rotation…

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Q: calculate the pI of the peptide

A: We are given a pentapeptide (A peptide with 5 amino acids).  First, we have to identify the amino…

Q: Consider a situation in which acid rain has heavily polluted a lake to a level of pH 4. An…

A: The value of pH expresses how much concentrated the acid solution is.

Q: ter the solubility expression for Mg3(PO4)2(s). sp || [Mg²+ ]³[PO¾¯ ]²

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Q: Divide both of your results from the preceding two steps by the lower mole value to determine the…

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Q: 4. magnesium + silver acetate → Molecular Reaction: ution Oxidation half reaction:

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Q: how did it became a amino and show solutions

A: Amines also called "amino" functional groups are organic compounds having either a primary amine…

Q: To harvest blood culture, you add 100ul 10ug/ml colcemid to 10 ml blood culture.     What is the…

A: To calculate final concentration of colcemid in blood culture, we would use dilution law given as :…

Q: What volume (in mL) of 0.450 M HCI is required to react completely with 1.50 g of sodium hydrogen…

A: Given, NaHCO3(aq) + HCl(aq) → NaCl(aq) + CO2(g) + H2O(l) mass of NaHCO3 = 1.50 g Molarity of HCl…

Q: Use Charles's law to complete the table. (Assume pressure and number of moles of gas to be…

A: Complete the first row of the table. Express the volume in litres to three significant figures.

Q: please underline the answer A student sets up the following equation to convert a measurement. (The?…

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Q: Assign R and S to all of the asymmetric centers in the following molecules.

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Q: 1% 77- 701 60 50 40 30 20 10 -04 4000 3306.430m-1 3500 2020.44cm-1 3000 2556.70cm-1 2500 cm-1…

A: IR spectra provides the information of possible functional groups of unknown compound based on their…

Q: alled the a position. Predi halene with CH3 CH₂ CC 8 2 a positio

A: Organic reactions are those in which organic reactant react to form organic products. The major…

Q: The figure shows a reaction between methane gas (natural gas, CH4) and oxygen to produce carbon…

A: We are given the ball-joint diagram of reaction of methane with oxygen to form water and carbon…

Q: Gram for gram, fats in food have much more chemical energy than sugar.  One component of fat is…

A: Given: The mass of stearic acid burned = 1.02 g The heat capacity of the calorimeter = 9.43 kJ/oC…

Q: Fisher structure for O-ribofuranose

A: We have given two organic compounds and we have to give fisher projection for both of these organic…

Q: classmate for the following reaction, 3.87 gm of Carbon (graphite) 14.4 gon of Oxygen gos. Carbon (…

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Q: chlorous acid hydrocyanic acid lactic acid nitrous acid < HCIO, Order these acids from weakest to…

A: Given the values of Ka along with the acids:  We will determine the answers by the value of Ka as :…

Q: -C-OCHCH₂ CH₂

A: Functional group: A functional group is a group of atoms in a molecule with distinctive chemical…

Q: Calculate the mass of precipitate formed when 35.0 mL of a 0.155 M NaBr solution is added to 25.5 mL…

A: Given, For NaBr solution Concentration of NaBr solution = 0.155 M = 0.155 mol/L Volume of NaBr…

Q: Write a balanced equation to show the reaction of aqueous aluminum acetate with aqueous ammonium…

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Q: You are designing a process with acetonitrile as the solvent. The process conditions are T = 81 °C…

A: T= 81 °C = 354 K P = 560 mmHg Using the Antoine equation, determine if the acetonitrile will boil.

Q: A 5.0 ft person weighs 172 lb. Express this person's height in meters and weight in kilograms. (1…

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Q: How many gram Ba(OH)2 will be needed to  make 200 ml 8% Ba(OH)2?

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Q: Question 3. 6.8 mL of 2.5 M CH3COOH (acetic acid, commonly known as vinegar) was added to make a 3L…

A: we need to determine the acetate ion concentration in mg/L, ppb, and M. Given that 6.8 mL of 2.5 M…