In this experiment the mass of NaCl was measured indirectly only. Desgin an experiment procedure that would allow the mass of NaCl to be measured directly.

Q: A tank, containing 1520 liters of liquid, has a brine solution entering at a constant rate of 3…

A: Solutions- The concentration within the tank is monitored and found to be c(t) = e(-t/800)/80  kg/L.…

Q: Blueberry high-fiber muffins contain 55 % dietary fiber by mass. If a package with a net weight of…

A: The percentage of dietary fiber in muffins is = 55 % The weight of six muffins is = 14 oz Mass of…

Q: Draw resonance structures for a peptide bond between Tyr and Pro.

A:

Q: Calculate the molar solubility of AgBr in a 0.25M solution of NH3(aq) (Ksp (AgBr) = 7.7 x 10-13; K₁…

A: The equilibrium that exists between the undissolved solid AgBr and the dissolved ions is given…

Q: 8. You are asked to make 100 ml of solution containing the following: Component 1 mM Tris (stock…

A: To calculate the dilution factor, required to prepare  (i) 100 mL of 1mM tris solution from 1 M tris…

Q: 5) The latent heat of fusion of water at 0 °C is 6.025 kJ mol and the molar heat capacities P.m) of…

A: The latent heat of fusion of water at 0οC = 6.025KJmol-1 Cpm Water = 57.3 JK-1mol-1 Cpm Ice = 73.7…

Q: 710. 10. The formula of rust may be represented most simply as Fe(OH)3. The balanced equation when…

A: The answer for this problem is provided below in great details within the attached figure.

Q: can someone show me how to do the resonance structure for this compound?

A: Resonance structure: If the Lewis structure of a molecule or ion cannot explain by a single…

Q: 1) HB(C5H11)2 2) H₂O₂, NaOH, H₂O 1 1) NaNH, 2) H3CH₂CBr 2

A: The first step is hydroboration reaction where we form an enol which tautomerizes to form a ketone.…

Q: The bond angle for the C-O-H bonds in the following molecule would be expected to be approximately:…

A: Given, The bond angle for the C-O-H bones in the following molecule would be expected to be…

Q: 2. When mixing two types of atoms, say A and B, will atoms always diffuse from regions of higher…

A: Diffusion plays an important role in various biological and chemical processes.  Diffusion occurs…

Q: Draw a resonance structure for the compound below.

A: we have to draw the resonance structure for the given molecule

Q: :0: CH3O- CH3OH

A: This is a epoxide ring opening reaction.

Q: 116.In a conductivity cell of a cell constant 0.003 cm³¹ concentration of 0.01 M solution of acetic…

A: The degree of dissociation of a weak electrolyte at a given concentration can be calculated by…

Q: I don't think that the answer of this question is right! Cause it says Kc=Kp which means that…

A:

Q: Given: + _NO +___H₂O ___NH3 + ___O2 -- --> ___NO How many moles of ammonia (NH3) are required to…

A: The moles of ammonia(NH3) required = 2.89 mol

Q: niza(10) How many mm Hg is 143 kPa? A) 539 B) 1073 C) 1.41 2/3 D) 19065 E) 19.1 F) 3233

A: In question we have to change the pressure given in kilopascal to mm Hg.

Q: (4) Which of the following represent the observed van't hoff factor for same concentration of KF and…

A: Given , Compounds KF and Ca2F

Q: Use the following data to calculate the enthalpy of solution of potassium chloride, KCl; AfH…

A: According to the question, For KCl, ∆fH°s = -436.7 kJ/mol∆fH°aq,1m = -419.5 kJ/mol Find the Enthalpy…

Q: b What is the initial rate of the reaction in Experiment 4? Initial rate= mol/(L.s)

A:

Q: Calculate the rate of heating for each of the thermometers from the beginning to the end of the…

A: Solutions- We have to calculate the rate of change of temperature with time.

Q: What action determines the pressure of a gas? expanding of the container reactions in the container…

A: Expanding the Container means volume of the container increases so it does not determined the…

Q: For the compound below, locate the pattern we just learned (lone pair next to a π bond) and draw the…

A: Resonance structure of a molecule is a possibility to find a molecule also in that structural form.…

Q: please draw the molecular orbital diagrams B₂2+ B₂²-

A:

Q: The molarity of Li" of a solution that contains 8.85 x 10- M of Li,CO, (73.9 ginel) a) 1.77-10-³ b)…

A: Given that The molarity of Li2CO3 solution= 8.85 x 10-4 M

Q: I need help filing in this table and calculating pH and buffer capacity solve this question…

A: To find out the pH of the given buffer solution and their buffer capacity.  A buffer solution is a…

Q: Y Part B An intramuscular medication is given at 5.00 mg/kg of body weight. What is the dose for a…

A: Part BGiven,Weight of patient = 190 lbDose of intramuscular medication = 5.00 mg/kg Required,…

Q: The pil of a solution that is 0.7 M formic acid and 0.2 M sodium formate: (Ka for formic acid-1.8 -…

A: Given, Concentration of formic acid = [Formic acid] = 0.7 M Concentration of sodium formate =…

Q: Ethyl chloride, CH3 CH₂ Cl, used to produce tetraethyllead gasoline additive, decomposes, when…

A: Answer: In the problem first order dehydrohalogenation reaction of ethyl chloride is taking place…

Q: Section 13.3 IUPAC Nomenclature for Alkenes and Cycloalkenes Practice Exercise Assign IUPAC names to…

A: IUPAC nomenclature is used for naming the organic compound as recommended by international union of…

Q: Discuss a basic laboratory technique and its importance.

A: Lab techniques are defined as the processes and practices that are recommended for equipment use in…

Q: ements accurately describes the products of the two reaction pathways shown? A -B dinate the…

A: We have been given an energy diagram.In this diagram, two reaction pathways are shown.We have been…

Q: (14) Three containers filled with 1 kg of each: water, ice, and water vapor at the same temperature…

A: This question is related to thermodynamics. The internal energy of a system is the sum total of…

Q: To use the Beer-Lambert law to quantify the concentration of a compound in solution, the molar…

A: The Beer-Lambert law states that the absorbance of a solution is directly proportional to the…

Q: 87. The ratio of the rate of effusion of Nitrogen (N₂) molecule and a carbon dioxide (CO₂) molecule…

A:

Q: For the compound below, locate the pattern we just learned (lone pair next to a π bond) and draw the…

A: Whenever for a molecule we can write two or more Lewis structure which differ in the position of…

Q: Which of the following compounds is the most soluble in water?

A: Alcohols are soluble in water because of the presence the hydroxyl group which form hydrogen bonds…

Q: What's structure for a compound that meets the following description: C4HgO with IR absorption at…

A:

Q: Write a reasonable mechanism for the reaction shown. H₂SO4 H2O ОН ОН

A:

Q: 6. A mixture of 2.0 g of Xenon (Xe) gas and 3.0g of Argon (Ar) gas has a total pressure of 40.5 atm.…

A: According to the question, The mass of the Xe gas is given by = 2.0 g The mass of the Ar gas is…

Q: 6. What product(s) would you expect to obtain from the following reactions? (a) L NO₂ (c) CH3 H₂/Pd…

A: "Since you have asked multiple-subparts questions, we will solve the first-three subpart question…

Q: 2-Ethoxy-2,3-dimethylbutane reacts with concentrated aqueous HI to form two initial organic products…

A:

Q: Atom numbers: H:1, 0:8 M₂ilg/mol, M₂: 12 g/mol, Mo : 16 g/mat 1. calculate the combustion enthalpy…

A: Well, we have to first balance the combustion reaction as it will give us the idea of how to…

Q: How many grams are present in 87.58 moles of X? (Assume that the molar mass of X is 9.59 grams per…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Given: ____Sn +_____HF --> _SnF₂ + ___H₂ How many moles of tin II fluoride will be produced from…

A: Given, _ Sn + _HF ---> _SnF2 + _H2 moles of hydrofluoric acid (HF) = 3.50 moles moles of tin II…

Q: 4. Identify the following pairs of compounds by describing them as enantiomers, diastereoisom…

A: The answer for this problem is provided below in great details within the attached figures.

Q: What is produced during the replacement reaction of Ba(NO3)2 and Na2SO4?

A:

Q: Compound X is developed on a TLC plate using a 3:1 heptane:acetone eluent mixture. The same compound…

A:

Q: Which of the following is a buffer solution? Select all that apply. 0.40 M HIO with 0.0045 Nalo…

A: Acidic Buffer Solution is solution which consists of a mixture containing a weak acid and the…

Q: 107.A 0.1 molal solution of a monobasic acid HX is 10% ionized in water. The freezing point of the…

A: If an acid is 10% ionized, this means, α = 0.1

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.