An unknown liquid has a freezing point of 25.5oC, however, it absorbs H2O (as impurity) on exposure to humid air. If the freezing point of a 125g sample of the liquid is 24.59 oC, how many grams of H2O are present in the sample? Kf values of the liquid and water are 4.68 oC/m and 1.86 oC/m respectively.

Q: Express your answe MPa The vaporization of water is one factor that contributes to the raising of…

A: Water is a fundamental component of all living things and is needed for both cooking and baking. In…

Q: 6. Determine the structure of a compound with molecular formula CsH₁2O that gives the following…

A:

Q: I do not understand why this configuration would be in the excited state? Is it becasue one of the…

A:

Q: Balanced Chemical Equation NaOH + HA-> NaA + H2O Details Volume (mL) of original unkown acid (HA)…

A: The balanced titration equation is: NaOH + HA → NaA + H2O

Q: WRITE THE STRUCTURAL FORMULA OF THE FOLLOWING: (NOT SKELETAL FORMULA)   3,6- Dimethyldecane

A:

Q: Molecular iodine, 1₂(g), dissociates into iodine atoms at 625 K with a first-order rate constant of…

A: a) Given, Molecular iodine (I2) dissociates into iodine atoms at 625 K. First order reaction, Rate…

Q: 5.2 Design a system for electrolytically forming Ag/AgCl electrodes. Give the chemical reactions…

A:

Q: Question: Arrange the following in order of their mass: atom, electron, molecule, proton. Please…

A: An atom is composed of a nucleus that contains protons and neutrons. A molecule is formed when two…

Q: A 340 L sample of seawater contains 8.90 g of gold(III) chloride. What is the concentration of…

A: we have to calculate the concentration of gold(III) chloride in ppm

Q: 3. Formulate the potential product(s), starting material or reagents of each of the following…

A: We have to write the regents , starting material or reactants in the given reaction sequence.

Q: A rigid vessel is filled to one-half its volume with liquid methane at its normal boiling point (111…

A:

Q: H O 2 E10 NH₁

A: In this reaction, dihdropyridine derivative obtained from beta keto ester, aldehyde and ammonia. If…

Q: The polymerization of vinyl chloride (1.6x10³M) is carried out using hydrogen Peroxide (0.4x106 M),…

A: Introduction to Polymerisation The process of creating polymers is called polymerization. Following…

Q: Name the water purified the above separating techinque

A: Water Purification The process of purifying water involves taking out unwanted chemicals, biological…

Q: A scientist isolates a sample of gas that occupies a volume of 678.1 mL at 104.3 kPa and 39.27 °C.…

A: Inert gas equation: -  PV=nRT (104.3*0.01atm)*(0.678 L) = n * 0.0821*(39.27 +273.15) n = 0.0275…

Q: 21 Which best describes a gas? A. Molecules and atoms are in a fixed position. Their movement is…

A:

Q: If insoluble impurities, e.g., dust, tissue, filter paper, etc., were mixed with the sample, how…

A: Insoluble impurities  The term "insoluble impurities" refers to contaminants that settle or float on…

Q: a: Sketch within a cubic unit cell the following crystallographic directions: [121], [201], [2 1 3),…

A: The crystallographic direction within a cubic unit call can draw by converting the Miller indices…

Q: The conversion of nitrogen to ammonia, an essential process in the nitrogen cycle, occurs only in…

A: Given, the reaction involved in the titration: The volume of the Mo3+ sample = 30 mL The volume of…

Q: Name each compound according to the IUPAC system:

A: IUPAC nomenclature rules for alkanes: • Identify the longest continuous carbon chain. • Identify the…

Q: Platinum has a density of 21.45 g/cm³ 25 °C. On the other hand, water at this temperature has a…

A: Given - Density of platinum at 25°C = 21.45 g/cm3            Density of water at 25°C = 0.99997 g/ml…

Q: Chemistry Table 1 Standard Enthalpies and Entropies Substance Standard enthalpy of formation…

A: Spontaneity of a reaction can be determine from the value of ∆G of reaction.

Q: WRITE THE CHEMICAL FORMULA OF THE FOLLOWING COMPOUNDS •Dihydrogen monoxide •Carbon monoxide

A: Given,⚫ Dihydrogen monoxide⚫ Carbon monoxideRequired,                    The chemical formula of…

Q: Based on the nanomaterials and analytical methods, propose methods on mitigation of COVID-19 spread

A: COVID - 19 It is the broadest classification of RNA virus. It is frequently challenging to determine…

Q: QI The Pvc polymer were obtained in the thermal initiation (0.01 M) of Vinyl chloride (8.3 M) at…

A: Free radicle polymerization occurs in three steps:1) Initiation:  I   → 2R.                     R. +…

Q: How much heat (in kilojoules!) is released when 2.0 grams of water cools from 110 to 55? (your…

A: Specific heat: It is the amount of heat released when 1 gram of a substance cooled by 1 degree…

Q: ) Calculate the mass of sodium carbonate required to completely neutralize the spill. -) Determine…

A:

Q: a) 30 wt.% Ge alloy is slowly cooled from 600°C at what temperature does the first solid phase is…

A:

Q: Question 54 of 66 Provide the correct IUPAC name for the skeletal (line- bond) structure shown here.…

A:

Q: What substance is obtained when the following separation method has been applied? Magnetic…

A: Separation is a method in which a mixture containing two or more components is separated into the…

Q: 15.3 mL of 0.1 M hydrochloric acid is used to titrate a 25 mL alkaline sample to achieve…

A: Given: Volume of acid = 15.3 mL Concentration of acid = 0.1 M Volume of alkaline sample = 25 mL

Q: Calculate the moles of ammonia present in a 7.040 g sample of ammonia, which has a molar mass of…

A: Given, mass of ammonia = 7.040g  Molar mass of ammonia = 17.030gmol-1  Moles of ammonia = ?  Note :…

Q: Give the names of the polymers in the IUPAC system CH2CH(OCO-CH3) (O-ph-OCO-(CH2);CO)

A:

Q: A patient was given 2,486mL of fluid; how many quarts of fluid was given to the patient? 2.635 mL 3…

A:

Q: The ionization constant of acetic acid (0.05 M) is 1.74x105. Answer 2 and 3 questions: (2) Calculate…

A: Given , Concentration of acetic acid (CH3COOH ) = 0.05 M Ionisation constant =1.74×10-5

Q: explain the basis of ionic bonding

A: Chemical bonds can be either ionic or covalent based on whether the electrons are completely…

Q: The CO₂ molecule has__________ rotational modes. 4 2 6 3 5

A: A question based on molecules that is to be accomplished.

Q: 2. A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor…

A:

Q: 2. Formulate the potential product(s), starting material or reagents of each of the following…

A:

Q: What is the pressure (in atm) at the critical point for this substance? a) 31.1 Ob) 73.0 Oc) 5.11…

A: Critical point : Critical point of a pure substance is defined as a point at which liquid and gas…

Q: A 77% excess air at 20 °C mixing with gas fuel containing of 66 mole percentage CH. and C₂H6. Air…

A:

Q: At a certain temperature thS TCO 2C1,0, (g)-2C1₂ (g)+50, (g) Suppose a vessel contains Cl₂O, at a…

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction…

Q: O Toluene, C>Ha(9), is an important organic solvent and can be produced as represented by the…

A: Since, Equilibrium constant or Kc is the ratio of the equilibrium concentrations of product over…

Q: An aqueous antifreeze solution is 37.4% ethylene glycol (C₂H5O₂) by mass. The density of the…

A:

Q: oft انسار Eto Nat

A: Michael addition reaction: alpha , beta unsaturated esters undergo addition reaction when treated…

Q: A sample containing 12c, 160, and an unknown isotope is analyzed in a mass spectrometer. As in the…

A:

Q: Give the names of the polymers in the IUPAC system CH2CH(OCO-CH3) (O-ph-OCO-(CH2)-CO) 4

A:

Q: Supposing there’s no conductivity apparatus available, can you still distinguish between a strong…

A: What is a conductivity apparatus? It is described how to measure the relative conductivity of…

Q: THE ANSWER TO THE CALCULATION BELOW WITH THE CORRECT NUMBER OF SIGNIFICANT FIGURES IS 300.42 -…

A: Significant figures : Significant figures of a number in positional notation are digits in the…

Q: need help refreshing my brain on this question. Identify the polarities (by using partial charge…

A: Polarity means separation of chages on the basis of electronegativity. Polar molecules must contain…

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.