calculate the mass percent of methanol in a solution containing 2g. of methanol with 240g of water.

Q: What volume of 2.036 mol L-1 solution of LIOH is required to make 7.80 L of a solution with a pH =…

A: Given :-  Initial concentration of LiOH solution = 2.036 mol.L-1  pH of final solution = 12.80…

Q: A generic salt, AB, has a molar mass of 319 g/mol and a solubility of 8.20 g/L at 25 °C. AB(s)…

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Q: A solution contains 0.0140 M Pb2+(aq) and 0.0140 M Sr2+(aq). If you add SO2−4(aq), what will be the…

A: Ion that has lower value KSP , will precipitate first as its ionic product will overcome the KSP…

Q: What is the absolute configuration of the chloro-substituted carbon?

A: RS nomenclature: The RS nomenclature is an important nomenclature system for denoting the…

Q: d. Magnesium metal and iron (II) nitrate solution react to form magnesium nitrate solution and iron…

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Q: Write the half-reactions as they occur at each electrode and the net cell reaction for this…

A: Given that, a cell reaction is Sn(s)|Sn2+(aq)‖Ag+(aq)|Ag(s). We have to write the half-cell…

Q: The pH of 300 mL solution made of 0.58 M acetic acid and 0.60 M potassium acetate is (K - 1.8 x 105)…

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Q: At the equivalence point? O all of the weak acid, 2,2-dimethylpropanoic acid, is converted to the…

A: 2,2-dimethylpropanoic acid is a weak organic acid. It is colourless, the odiferous organic compound…

Q: Consider a galvanic cell in which Al3+ is reduced to elemental aluminum and magnesium metal is…

A: As we know, in electrochemical cell,  Oxidation takes place at anode and reduction takes place at…

Q: (1) The observed half life for this reaction when the starting concentration is 0.415 M is s and…

A:

Q: Consider the endothermic decomposition reaction of chlorine monofluoride at 1116.8 K. 2 CIF(g) =…

A: 16a. Given, 2ClF(g) ⇌ Cl2(g) + F2(g) Temperature (T) = 1116.8 K Equilibrium constant (K) =6.22 ×…

Q: CEN + ? MgBr (1). LIAIH MgBr b). MgBr c). ) d). LIAKO-t-Bu)3 e) DIBAH

A:

Q: How much heat is required to warm 2.07 kg of sand from 32.6 to 48.9 °C. The specific heat of sand is…

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Q: 3. Using the Wittig reaction, propose a synthesis for 2-methyl-1-phenyl-1-propene.

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Q: How much 5.80M NAOH must be added to 430.0 mL of a buffer that is 0.0215 M acetic acid and 0.0270M…

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Q: For the oxidation–reduction reaction equation   2Na+S⟶Na2S indicate how many electrons are…

A: Oxidation - Reduction reaction is called as redox reaction.  Oxidation - loss of electron  Reduction…

Q: KMNO4 NazCr20, [1] NACN p. d. HO, f. H2SO4, H2O Br (2] H2O, ¯OH

A: The reactions given are,

Q: When Au comes into contact with Ag, it creates a solid solution that is called a substitutional…

A: Given: mass of Au = 10 % mass of Ag = 90 % Pure Au has a density of 19.32 g/cm3  pure Ag has a…

Q: Question 10 W Sulfur oxides and nitrogen oxides are pollutants that are produced when fossil fuels…

A: From the equations, nature of carbonate ion can be confirmed as shown in the following step.

Q: Iodine-131 captures an electron and emits 3 positrons in one of its decay processes.  What is the…

A:

Q: Some Radioactive Isotopes Useful in Medical Imaging Mode of Decay Isotope Half-life Use in Medical…

A: Given: Initial mass of isotope given = 60.3 mg. And time passed = 391.5 hours.

Q: What is the mass % of the solute if the concentration is 0.1432 M of a AGNO3 solution? O 2.433% O…

A: The mass percentage of the solute is the ratio of mass of solute to that of mass of solvent, whole…

Q: What is the binding energy in kJ/mol nucleons for lanthanum-138? |k]/mol nucleons 57 H+ 81;n La The…

A: The reaction given is, =>

Q: Write a balanced nuclear equation for the following: The nuclide lead-214 undergoes beta emission. +

A: Given :- nuclide that undergoes beta emission = lead-214  To write :- balanced nuclear equation

Q: Vhat would the strongesSt a. CHCI3 b. KF in water c. CF4 d. CH3NH2 hoices of answers:(type disp for…

A: The strongest intermolecular attractive forces: a. CHCl3 - dd

Q: For a certain chemical reaction, the standard Gibbs free energy of reaction is – 130. kJ. Calculate…

A: Given: Equilibrium constant, K = 2.6 × 1024  And ΔG0 = -130 KJ = -130000 J.

Q: 4. CH3CH2 CH2CH2CH2CH3 C=C H CH2CH3 CH2CH3 H3C CH3-CH-CEC-CH2-CH-CH3 CH3-CH2 CH2-CH3 5.

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Q: able to calculate energy change for a reaction when bond strengths are given              (ΔG =…

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Q: When the compounds analyzed by Robrob were passed on to the next test, another scientist, Kikoko,…

A: Given: Concentration of 20 % (w/w) solid active compound (M1) = ? Volume of 20 % (w/w) solid active…

Q: 1) Mno, + NO,→ Mn2+ + NO,- 2) Mno, + VO2+ → Mn2+ + V(OH),* 3) l2 + H,S → - + Sg 3+

A: 1) MnO4- + NO2- ----> Mn2+ + NO3-    The half reactions are -  MnO4- ----> Mn2+  (reduction…

Q: Write a balanced nuclear equation for the following: The nuclide phosphorus-28 undergoes positron…

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Q: PQ-28. How are these molecules related? H. OH HO Br CH3 Br constitutional (D) isomers (A) identical…

A: Detail description is given below

Q: For a certain chemical reaction, the equilibrium constant K = 5.1 × 10 ° at 10.0 °C. Calculate the…

A: Given temperature is 283 Kelvin

Q: 21. NH: HO,C

A: The substituent on benzene ring directs the incoming electrophile to ortho, meta, para position.…

Q: A neutral solution of water at a particular temperature has a concentration of OH⁻ of 8.0 × 10⁻⁷ M.…

A:

Q: What amount of heat (in kJ) is required to convert 19.3 g of an unknown liquid (MM = 67.44 g/mol) at…

A: Here , heat is used in three steps , 1)  in rising of temperature of liquid till boiling point. 2)…

Q: Example 8: An aqueous solution is 0.907 M Pb(NO3),. Determine the molality of lead (II) nitrate,…

A:

Q: What amount of heat, in kJ, is required to convert 1.60 g of water at 67.0 °C to 1.60 g of steam at…

A: Given: Mass of water = 1.60 g. Initial temperature of water = 67.0 oC And the final temperature of…

Q: A 48.3 g sample of a metal is heated to 97.4 °C and then placed in a calorimeter containing 114.5 g…

A: Given: Mass of water = 114.5 g. Initial temperature of water = 21.6 oC Final temperature of system =…

Q: Consider the following half reactions in the attached image and their corresponding standard…

A: Given:

Q: How long would it take for N2O5 to decompose 40%?

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Q: Match set A (common active ingredients of insect repellants) to set B (known properties). Then,…

A: Set A Set B Set C Citriodiol b. Lemon eucalyptus oil

Q: Fill in the nuclide symbol for the missing particle in the following nuclear equation. 218 At -je+At

A: Given :-       ? → -1eo + 85At218  To determine :- nuclide symbol of missing species

Q: What pressure is exerted by 25.0 g of neon gas at temperature of 25 °C if the original temperature…

A: Given-> Weight of Ne = 25.0 gm T2 = 25°C = 25 + 273 = 298 K T1 = 50.0°C = 50.0 + 273 = 323 K P1 =…

Q: Part A Consider the following reaction: 2 Co(g) + 2 NO(g) - 2 CO2(g) + N2(g) Calculte the standard…

A: Calculate the standard enthpy change of the given reaction by using table given above--->

Q: 1. What are the differences between natural and synthetic dyes?

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Q: Choose five items from the given scientific terms about dyes below. Then, provide definitions of…

A: In UV spectroscopy in terms of wavelength  , there are some categories of shifts, which are known as…

Q: 8. What are the temperature and pressure conditions of Standard Temperature and Pressure (STP)? a.…

A: STP: Standard temperature and pressure are standard sets of conditions for experimental measurements…

Q: nat volume, in milliliters, w

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

Q: nductemearterie delasgtsecunca e reacoone CH,CI Br HNO, AICI, FeBr, H,SO, NO ON NO NO, 2.

A: