Seawater can be approximated by a three percent mass/volume solution of NaCl in water. Determine the molarity and osmolarity of a 3.0% m/V NaCl solution.

Q: Determine the ΔH for the reaction: IF5(g) → IF3(g) + F2(g) using the data below.             IF(g) ...

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Q: INTERPRETING PHASE DIAGRAMS OF WATER AND CARBON DIOXIDE 218 Liquid B Liquid Solid Solid 5.2 Gas Gas ...

A: A question based on phase diagram that is to be accomplished.

Q: Consider the reaction: 2NH3(g) + 3N20(g)4N2(g) + 3H20(g) Using standard thermodynamic data at 298K, ...

A: 2NH3(g) + 3N2O(g) ----> 4N2(g) +3H2O(g) Number of moles of NH3= 1.86 moles  

Q: Calculate the molal concentration of a solution of 44.9 g of naphthalene, C10H8, in 175 g of benzene...

A: Please find your solution below : Molality is a measure of concentration which is defined as the num...

Q: How do you solve the hydrogenic wave functions for HF? I am most unsure of what angle to use for cos...

A: The wave function for hydrogen atom or hydrogen like atom can be represented by ψ(r, θ, φ)=R(r)Θ(θ)ϕ...

Q: 3. For each acid, name the anion bonded to hydrogen, then name the acid. Anion Name Acid Name (а) НB...

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Q: The following syntheses have flaws in them. What is wrong with each? (a) .CH3 1. Cl2, FeCl3 .CO2H 2....

A: 1) Methyl group is a moderate electron donating group and it directs the incoming electrophile ortho...

Q: Please identify the asymmetric carborn in the following molecules and mark them with an X. There may...

A: Asymmetric carbon centre is the carbon center with sp3 hybridised and having four different valencie...

Q: In the figure here, a ball is thrown up onto a roof, landing 4.90 s later at height h = 18.0 m above...

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Q: Calculate the work, in joules, done by a gas as it expands at constant temperature from a volume of ...

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Q: Sodium nitrite (NaNO2) reacted with 2-iodooctane to give a mixture of two constitutionally isomeric ...

A: Given that, 2-iodooctane reacts with sodium nitrite (NaNO2) to give a mixture of two constitutionall...

Q: What is the systematic name of the ff. organic compounds: STRUCTURE B1 CH3-CH-CEC-CH2-CH-CH3 CH3-CH2...

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Q: NaOH is a strong base. HF is a weak acid. Based on these observations, one would expect the pH of a ...

A: A base releases OH- ions and an acid releases H+ ions . Both H+ and OH- ions neutralise each other t...

Q: Calculate the work, in joules, done by a gas as it expands at constant temperature from a volume of ...

A: During the expansion of a gas at constant temperature the work done by the system is given by: w = -...

Q: What is the volume (liters) of 23.5 g of I2 at STP?

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Q: ים it HO. H. CHS CH3 DH QH 나. OH CH3

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Q: If we locate an electron to within 20 pm, then what is the uncertainty in its speed?

A: As per Heisenberg's uncertainty principle, it is not possible to estimate the exact position or velo...

Q: 12 The molar heat of combustion, A H;, of sucrose is -5643.4 kJ mol 1, If 0.250 moles of sucrose is ...

A: Given :  12.  ∆Hc° of sucrose = -5643.4 KJ mol-1  Moles of sucrose = 0.250 moles  Temperature = 16°C...

Q: Gaseous ethane (CH,CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) ...

A: Ethane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical r...

Q: Differentiate the carbonate buffer and phosphate buffer systems in term of pH and pKa

A: A buffer is a solution which resist change in pH and obtained when a weak acid and the salt of its c...

Q: Calculate the number of nitrogen atoms in a 110.0 g sample of dinitrogen tetroxide (N,O,). Be sure y...

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Q: For items 11 to 15 Predict the direction of the reaction that will be favored by the system below wh...

A: Answer is as follows

Q: Lewis structure name of highlighted group H H н— о С — С — н H H H : 0— С — н | H :0-H H :0: H -C. N...

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Q: 1. What is the molality of a solution labeled "8.6% glucose (C6H12O6) by weight?" (Note: If the ques...

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Q: A virus has a mass of 9.0 × 10 -12 mg and an oil tanker has a mass of 3.0 x 10' kg. Use this informa...

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Q: Calculate the work, in joules, done by a gas as it expands at constant temperature from a volume of ...

A: Initial Volume = 1L =Vi Final volume = 1 = Vf External pressure = Pext = 4atm 1atm = 101325Pa 1Pa = ...

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

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Q: Part A To 10Lof a 032 M solution of HCIO, is added 0.20 mol of NaCIO Caloulate he HCIO, at equibrium...

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Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used t...

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Q: f) d) HC HC CH3 CH3 CH HC

A: IUPAC name of given compounds are as follows

Q: e volume of the balloon?

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Q: thermometer. A 55.1 g sample of polystyrene is put into a calorimeter (see sketch at right) that con...

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Q: Which condition favors the forward direction of a reversible reaction? A. Q = K B. Q K D. Q = 0

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Q: 7. The reaction for lime (CaO) production from limestone (CaCO3) is as follows CACO3(s) + heat 2 CaO...

A: Endothermic reaction can be defined as the reaction which involves absorption of heat. Given reactio...

Q: The chemical structure of lactic acid (C,H,O, is shown below. Highlight each atom that is in a hydro...

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Q: 2NH3(g) + 202(g)-N20(g) + 3H20(1) Using standard thermodynamic data at 298K, calculate the free ener...

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Q: 1. Find my mistakes and fix the problem! In solving the following equilibrium problem, I made 4 mist...

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Q: Plot the data above on the graph on below.

A: This is a multiple questions. According to guidelines in multiple questions we can solve only the fi...

Q: 1. How many grams of KBr are present in 5.0x10 mL of a 5.80 M solution? [molar mass of K =39 g, mola...

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Q: Calculate the pH of an 0.025 M solution of HF. HF is a weak acid Ka = 0.00071

A: The PH of weak acids can be calculated as follows

Q: Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels. The heat of com...

A: Chemical balanced equation C3H6 + 92O2 (g) →3CO2 (g) + 3 H2O (l) Heat of combustion of C3H6 = 499.8 ...

Q: b) Pyrrole and indole both react with the reagents shown below to give compounds E and F respectivel...

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Q: Ammonia (NH3) chemically reacts with oxygen gas (02) to produce nitric oxide (NO) and water (H,0). W...

A: The balanced chemical equation for the reaction of Ammonia ( NH3 ) and Oxygen gas ( O2 ) is,     4 N...

Q: 1. State the reasons for reading the absorbance of unknown against reagent water blank or against th...

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

Q: Use the systematic treatment to get the concentrations of all the species in a solution of: a.) 0.35...

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Q: Ive the following differential equations: а. dx2 - 4y = 0 y(0) = 2 (at x = 0) = 4 b. dx2 5 + 6y = 0 ...

A: Energy of proton = 100eV  Energy of electron = 100eV

Q: 5. What is the equilibrium constant expression for the reaction below? C(s) + CO2(g) + 2C12(g) 2 2CO...

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Q: WHAT IS THE SIGNIFICANCE OF THE RATION OF STRENGTHS OF ACIDS AND BASES? what is the purpose of dryi...

A: To know about the extent to which any acid or base ionized in water when dissolved is the important ...

Q: c) Calculate the theoretical density of the Zno. Hint: calculate the volume of unit cell from consid...

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Q: What is the number of moles in Serotonin if the mass in grams is 21.29

A: Given, mass of serotonin= 21.29 g  molar mass of serotonin =176.215 g mol-1  moles of serotonin = ?