Ethylene glycol (C₂H₆O₂) is used as an additive to the water in your automobile to lower its freezing point. A solution of ethylene glycol in water has a freezing point of -8.80°C. What is the mole fraction of ethylene glycol in this solution? (Kf for water is 1.86°C･kg/mol). Please use the correct significant figures. Thank you!

Q: oxidation reaction cannot happen without a reduction reaction.  True or False?

A: The oxidation reaction can not occur without reduction if one substance losses electron then some su...

Q: ST5B.3 - The equilibrium constant K (or Kp) for the reaction 1A(g) + 1B(g) --> 5C(g) is 43.4 at 628 ...

A: Given, 1A(g) + 1B(g) ➝ 5C(g) KP = 43.4  Temperature (T) = 628 K KC = ? Note: universal gas constant ...

Q: 14-29. Calculate E^o, Delta G^o, and K for the following reactions.(a) 4Co^3+2H2O-->4Co^2+O2(g)+4H+

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Q: 9.63 Reactions of hydrocarbons are often studied in the petro- leum industry. One example is 2 C;Hg(...

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Q: A set of samples from an abandoned industrial site detected a suspected groundwater contaminant at a...

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Q: - Draw the structures of 5 structural and geometric isomers of dienes with formula C5H8.

A: We have to draw the structural & geometrical isomer  of a diene having Molecular formula C5H8

Q: 2014 male luler Yomul nach paoden Hnanle , A= 271 (s) Comprunds ond Y yhoore he Compound X has 8- 2-...

A: This Question is based upon NMR Spectroscopy.

Q: Consider a three-level laser system. The wavelength for an absorption from level A to level C is 477...

A: We will draw diagram and then using it calculate required wavelength.

Q: 7. Calculate the number of grams of CO2 that are produced by heating 116.4 grams of magnesium carbon...

A: 60.72 gram of CO2 is produced from 116.4 gram of MgCO3.

Q: e. -2257 kJ 4. Calculate AGrxn at 298 Ku 3 Oz(g) → 2 03(g P(O2) = 0.41 atm, a. +341 kJ b. +17.8 kJ c...

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Q: .32 The material typically used to heat metal radiators is water. If a boiler generates water at 79....

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Q: Vanadyl trichloride (VOCl3) is a liquid that is used as a catalyst in the manufacturing of batteries...

A: Given data : Mass of VOCl3 = 21.34 g Molar mass of VOCl3 = 173.3 g/mol melting point: -77°C  boiling...

Q: For the rearrangement of cyclopropane to propene at 500 °C (CH2)3 CH3CH=CH2 the following data have ...

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Q: A metal radiator is made from 26.0 kg of iron. The specific heat of iron is 0.449 J g-1 °C-!. How mu...

A: Given :  Mass of iron = 26.0 kg  Specific heat = 0.449 J.g-1.°C-1  Initial temperature = 25.0°C  Fin...

Q: a. Find the pH of a solution that is 0.550M in formic acid and 0.400 M in sodium formate K. (formic ...

A:   Above solution acts as acidic buffer  It's pH can be calculate by  pH = pKa + log (salt/acid)  Giv...

Q: An aqueous solution contains 0.132 mol L-1 of HCl and 0.717 mol L-1 of acetylsalicylic acid (Ka = 3....

A:                          Acetylsalicylic acid is a weak acid and HCl is a strong acid.              ...

Q: A closed system initially containing 1.000 x 10-3 M H2 and 2.000 x 10-3 M I2 at 448 °C can reach equ...

A: Chemical equilibrium is defined as stage at which both reactant and product are in equilibrium.

Q: Assuming ideal solution behavior, what is the molar mass of a protein if a solution of 0.02 g of the...

A: given :-  mass of protein = 0.02 g  volume = 25.0 mL  osmotic pressure = 0.56 torr  temperature = 25...

Q: how aas work?

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

Q: the pOH

A:

Q: The porosity of the PAGE gel is determined by the ratio of acrylamide and the amount of. (TEMED, bis...

A: We have to tell the porosity of the PAGE gel is determined by the ratio of acrylamide and the amount...

Q: - Identify the purpose of each test in the space provided. a) Benedict’s test b) Seliwanoff's test c...

A: Since you have posted more than one question, we will solve only first question for you. If you want...

Q: 13. Given the following thermochemical equation: Mge) + Clag MgCl, + 642 kJ (5) What is the AH for t...

A: Given- Mg + Cl2-> MgCl2 +642 kJ

Q: (b) 2 Na(s) + 2 H20(1) → 2 NaOH(aq) + H2(g) As° J/K rxn As° × 10 J/K (enter your answer in scientifi...

A: Given data :- 2Na(s)    +     2H2O(l)     →   2NaOH(aq)    +    H2(g) ∆S for Na = 51.05 J/mol.K ∆S f...

Q: What would happen to the cells if a hypertonic solution was injected directly to the bloodstream? ex...

A: Solution is of three types:-  Hypertonic  Hypotonic  Isotonic

Q: does the substituent F __ have an electron withdrawing-effect, or a electron-donating effect?

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Q: What is Av, for each reaction? A(g) + B(g) --> C(s) +1 A(g) --> B(g) -2 A(g) + B(s) --> 2C(g) +2 2A(...

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Q: Consider the schematic reaction    K A --> P a) If the reaction is one-half order with respect to ...

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Q: Using the following data obtained at 25°C. • Ksp for Cr(OH)3 is 6.3 x10-31 • Kf for [Cr(OH)4]- is 8....

A: Given Data : Ksp for Cr(OH)3 is 6.3 x10-31 Kf for [Cr(OH)4]- is 8.0 x1029

Q: Determine: 2 Fe203(s) + 3 C(s) → 3 CO2(g) + 4 Fe(s) Given Enthalpy (K/mol) 3 -833.8 O2(g) Fe203(s) 2...

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Q: Question 77 An 59.74 g sample of aluminum is placed on a Not complete 56.53 g sample of copper initi...

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Q: CH3 HCI .CH3 H3C (b) H3C. HBr H3C. CH3 Br (с) HBr Br or (d) HCI

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Q: When a 18.1 mL' sample of a 0.361 M aqueous nitrous acid solution is titrated with a 0.418 M aqueous...

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Q: CEN: +yoH t H N.

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Q: Use the Standard Enthalpies of Formation given to solve for the AHf for C2H6. 2 C2H6 (g) + 7 O2(g) →...

A: 2C2H6(g) +7O2(g) --> 4CO2(g) + 6H2O(g)  

Q: The heater used in a 4.33 m x 3.60 m x 2.86 m dorm room uses the combustion of natural gas (primaril...

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Q: A water solution contains 10 mM HCO3 and 0.2 mg/L CO,2-. We also know the solution pH is 8.5. Please...

A: Solution                          Give that  PH = 8.5 Alkalinity It is the ability of substances pre...

Q: If a buffer solution is 0.410 M in a weak acid (K, = 5.9 x 10-6) and 0.210 M in its conjugate base, ...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: A solution considered to be slightly volatile and soluble in water has a boiling point of 200.0°C. N...

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Q: Consider the reaction. 2 Pb(s) + 0,(g) 2 PbO(s) An excess of oxygen reacts with 451.4 g of lead, for...

A: %yield = ( Actual yield÷ Theortical yield)×100%

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Q: Template Assisted Crystallization (TAC) is a a commercial softening alternative. Which of the follow...

A: Template assisted crystallization is a commercial softening alternative which involves use of atmosp...

Q: Identify each of the following as an oxidation or a reduction: a. O2(g) + 4 e 202 (aq) b. Ag(s) → Ag...

A: gain of electron = reduction  lose of electrons =  oxidation  

Q: Choose the correct concentrations of 48 mg/L CO2 and 27 mg/L Mg²* in mg/L as CACO3 O 155 and 89 mg/L...

A: Given data : CO2 = 48 mg/L Mg2+ = 27 mg/L

Q: Predict the product and balance  redox reaction The presence of sulfuric acid , an excess KMnO4 wil...

A: Answer: In acidic medium, KMnO4 act as a strong oxidizing reagent where it itself gets reduced and o...

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A:

Q: What is the rate at which Br(aq) disappears in the reaction below if the rate of disappearance of Br...

A: Rate of disappearance of BrO3^- = 0.047 M/s = -∆[BrO3^-]/∆t     

Q: Draw the structures of 5 structural and geometric isomers of dienes with formula C5H8.

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.