When cobalt(II)chloride dihydrate is dissolved in water or ethanol what species are present in both cases throughout the solutions in some amount (however in rather different proportions for the water versus the ethanol) ?

Q: Cesium (Cs) is element 55 on the pe 3.95x1023 atoms of Cs. Calculate th mol Cs

A: Given that, Atoms of CS= 3.95 ×1023 atoms  Then,  

Q: 1. Define Avogadro's number? explain w/ applications 2. What is a mole? 3. How are Avogadro's numb...

A:

Q: Draw Molecule Based On The IUPAC Name And Name Functional Groups: 5-methylhept-3-ynoic acid

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Q: Given the data below, plot the titration curve of the unknown amino acid. Determine the isoelectric ...

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Q: O Write the hydrolysis reaction(s) for the salt, CsBrO, and determine if the solution is acidic, bas...

A: Solution is given below in next step

Q: A solution is labeled 0.0404 M Sr(OH), Complete and balance the dissociation of Sr(OH), into ions in...

A: pH of solution is defined as negative logarithm of hydrogen ions.

Q: The Gibbs Free Energy, Enthalpy, and Entropy are state functions; hence, path-dependent.  True  Fa...

A: State functions are those functions which depends on initial and final state of the substance. 

Q: draw expanded structure and bond line drawing for each CHCCH-C(O)CНз CH2CI(CH2)½CH(CH3)2 (CH3)2CHCHC...

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Q: A flask containing 1059 g of water is heated and a temperature increase from 32.4 °C to 67.6 °C. How...

A: The mass of one mole of water is = 18 g The initial temperature of the water is = 32.4oC The final t...

Q: A 0.512 g sample of CaCO3 is dissolved in 12 M HCl and the mixture is diluted to 250 mL. A small amo...

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Q: When a SBIA021 student measured the pH of 1.0M HCI, the student obtained a pH meter and failed to ne...

A: pH meter is an instrument used in lab to measure the pH of any solution. There are a set of directio...

Q: The following reaction is at equilibrium at a pressure of 1 atm, in a closed container: C2H2(g) + 2H...

A: We have to predict the effect of increase in volume.  

Q: What is the mass in grams of Pblz (s) formed if 2.23 g of potassium iodide is reacted with excess le...

A: Given that, Mass of KI = 2.23 g  Molar mass of KI= 166 g mol-1 Molar mass of PbI2 = 461.01 g mol-1  ...

Q: Calculate the mass (in grams) of each of the follov species: (Enter your answer to four significant ...

A: Molar mass is equal to sum of atomic mass of all atom in molecules

Q: Arterial embalming may  a. arrest the cause of putrefaction b. increase the possibility of putrefa...

A: Answer is a option .

Q: MnO4-(aq) + 5Fe2+(aq) + 8H+(aq) ---> Mn2+(aq) + 5Fe3+(aq) + 4H2O (l) a.Fe|Fe2+(aq), Fe3+(aq)||MnO4-...

A: Here we have to make write correct cell notation of the following redox chemical reaction . For this...

Q: 1. Select: Plant Food A v NPK ratio: 11-35-15 Trial 1 Trial 2 2. Mass of sample(g): 2.0g 2.0g 3. Mas...

A:

Q: What is the molecular weight of Ca3(PO4)2? amu

A: Determine molecular weight of the given compound---

Q: tm. Use the virial

A: Here, P= 1 atm= 1.013x105pa, n=0.5, R= 8.314, T= 100oC,373 K,  

Q: 12. Three concentration-time graphs for chemical reactions are shown below: Graph 1 Graph 2 Graph 3 ...

A: The concentration-time graph shows the decrease in the concentration of the reactant with time.

Q: Consider the reaction A+2B⇌CA+2B⇌C whose rate at 25 ∘C∘C was measured using three different sets o...

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Q: A 0.01 m solution of a weak electrolyte ionizes into 4 ions freezes at -0.062C. What is the apparent...

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor a...

Q: 2.) A researcher determined the enthalpy changed associated with the reaction: 2H,S(g) + SO2 > H20(g...

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Q: 4. Write the Molecular, Complete lonic and Net lonic equations for following reaction. Ammonium brom...

A: (4)  Given that - Ammonium bromide and lead (II) nitrate react to form lead (II) bromide and ammoniu...

Q: Example of Soil Colloids and importance in the improvement of Agricultural Practice?

A: Soil colloids are the most active portions of the soil because of their large surface area and it de...

Q: Please explain why this is non aromatic with 5 pi electrons Me, B.

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Q: 1. Why is it essential to compare the cosmetic ingredients and properties of the different brands of...

A: 1. Everyone has different type of skins someone can have oily skin, dry skin or any other type. So, ...

Q: Cleanliness should always start at home and with one's self. This activity will help you practice id...

A: Here, we will discuss about cosmetic products present at home and cosmetic product form.Let's make a...

Q: Calculate the concentration equilibrium constant, K'sp for La(IO3)3 in a saturated solution of La(IO...

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Q: the attraction forces that allow water to function as a universal solvent are? a. van der waals forc...

A: The characteristics of van der Waals forces are,  Weak intermolecular forces Depend on the distance...

Q: Cosmetics are composed of different ingredients that function and maintain marketable quality. ensur...

A: Cosmetics are composed of different ingredients that ensure function and maintain marketable quality...

Q: What is the Kohlrausch plot of a weak acid? 1 2 O 2

A: Kohlrausch's law is used to calculate molar conductance of weak acid by graphical methods.  It has t...

Q: Rates of a Reaction 0.10 0.08 0.05 0.03 0.00 10 20 30 40 t (min) - A C Concentration (M)

A: Here from concentration versus time graph plot curve ,we can determine the concentration of reaction...

Q: Balance cach redox reaction in BASIC SOLUTION 1. Cr (OH)a + I0 →I + CrO4 2- - 2- 2- 2. Cra 07 + SO, ...

A: Given equations are : 1. Cr(OH)3 + IO3- -----------> I- + CrO42-  2. Cr2O72- + SO32- -----------&...

Q: Which of the following ions are always spectator ions in double displacement reactions? Select an an...

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Q: Calculate the mass percent of H in B4H9CI. %

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Q: Question 31 Consider the reaction below. Given the equilibrium concentration of each species, what i...

A: Equilibrium constant can be defined as the ratio of concentration of products to concentration of re...

Q: What happens to the atomic number when the reactant nucleus becomes the product nucieus? What happen...

A: The atomic number and mass number remains the same during chemical reaction that is when reactant nu...

Q: the infrared region, there is an absorption line of hydrogen that appears at 1094 nm. Determine the ...

A: Ans. This transition is part of The Paschen Series of lines which occurs in the infra-red region of ...

Q: A sample of 1.00 mol of perfect gas molecules with Cp = 7/2 R is put through the following cycle: (a...

A: Given 1.00 mol of a perfect gas having Cp = 7/2 R  Pressure =1.00 atm  Q, W, dU, and dH for each ste...

Q: What is the characteristic that distinguishes metals from one another?

A: The characteristics that distinguishes metals from one another is  malleability, ductility, Electric...

Q: Is 4-bromo-4-ethylhept-1-ene capable of hydrogen bonding? if no explain why?

A: Hydrogen bonding : is the strongest intermolecular force formed by the attractive force between a hy...

Q: аcetone, KOн A B.

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Q: H.Ws: 1- What is the influence of adding buffers on the chemical solutions? Give an example of oil a...

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Q: Experiment: UV-Vis Spectrophotometry and Beer’s Law Absorption of Light of Dyes in Beverages   5 ...

A: this is an example of dilution law here we are required to find the concentration of yellow dye in t...

Q: Which alkyl halide could react faster with NASH in DMSO (dimethyl sulfoxide)? QUESTION 19 ¿Cuál halu...

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Q: 6. What phase change will occur if the temperature is lowered from 80°C to -5°C at 1 atm? 7. You hav...

A: Answer is below

Q: Does an electromagnetic spectrophotometer using photoelectron spectroscopy exist? Explain why or why...

A: A spectrophotometer is an instrument which measures the absorption of light at each wavelength of li...

Q: Calculate the amount of heat released during the combustion of: a.) 0.30 mol of C3H6O (acetone) b.)...

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Q: How many grams of Cu(OH)2 will precipitate when excess Ba(OH)2 solution is added to 45.0 mL of 0.778...

A: Given reaction:-  CuCl2(aq) + Ba(OH)2(aq) -----> Cu(OH)2(s) + BaCl2(aq) Molarity of CuCl2 = 0.778...

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.