What is the molarity of Na+ in a solution that contains 75.9 ppm of Na2CO3? (MM=105.99 g/mol)   7.16x10^-4 M   3.32x10^-4 M   1.43x10^-3 M   6.64x10^-4 M

Q: How many atoms are in 25.6 g tin? O 1.30 x 1023 atoms O 3.01 x 1024 atoms O 3.01 x 1023 atoms O 6.02...

A: Moles of tin are, Moles = mass ÷ molar mass Moles = 25.6 g ÷ 118.71 g/mol Moles = 0.22 mol  

Q: Given the chemical equation: 2H₂ + O₂ → 2H₂O, how many moles of H₂O is produced to balance the equat...

A: When hydrogen (H2) gas burns in oxygen (O2)  water(H2O) is produced. 

Q: What is the atom ratio between C and H in C2H5OH? O 1/5 O 2/1 O 2/6 O 2/5

A: Given, C2H5OH      Required,                   The atom ratio between C & H in C2H5OH.

Q: Chitosan is a linear polysaccharide that is derived from the shells of crustaceans. The monomer of c...

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Q: 1. NaCN, HCN (а) 2. HСІ, Н20, Нeat

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Q: Determine the type (I = ionic, M = molecular/covalent, binary acid = BA, oxyacid = OA) and name or g...

A: Covalent compound can be defined as the compound which is formed from the covalent bond, Covalent bo...

Q: If Giorno Giovanna measured the mass of a product in order to calculate the amount of analyte presen...

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Q: Show the steps necessary, in order, to make each of the following compounds. Start with benzene, and...

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Q: 2. The Lewis structure of acetonitrile is shown below. Sketch the bonding picture of this molecule u...

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Q: Give the following information for the encircled element in the molecules as shown below 9) OH OH a)...

A: The Circled atom is a carbon atom.  And carbon have four valancy electrons. 

Q: 4. Water is less dense as a solid than as a liquid. A. Why can solid ice float on liquid water? B. W...

A: Answer A- When water freezes into its stable form, the molecules can form extra strong hydrogen bond...

Q: In analytical chemistry, what is a standard method? Include any sources you used to answer this ques...

A: Solution:  Definition of Standard method- In analytical chemistry for quantitative analysis,  standa...

Q: Single Bonds Multiple Bonds H-H 432 N-H 391 149 c=C 614 H-F 565 N-N 160 |-CI 208 C=C 839 H-CI 175 49...

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Q: 1. How many MOLES of xenon trioxide are present in 4.05 grams of this compound ? moles. 2. How many ...

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Q: e IUPAC name

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Q: Pure water freezes at 0oC. What is the freezing/melting point of an aqueous solution containing 37.4...

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Q: A certain reaction has an equilibrium constant of 10.1 at 25oC. A ⇄ B Determine its ΔG, in kJ/mol,...

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Q: Oxygen oxidizing Sulfide [ Choose ] Superoxide [ Choose ]

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: Using the equation below, calculate the flux of molecules to the surface at a base pressure of 5 x 1...

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Q: The following mechanism has been proposed for the gas phase reaction of H2 with ICl: H2 (g) + ICl(g...

A: The following mechanism has been proposed for the gas phase reaction of H2 with ICl:   H2 (g) + ICl(...

Q: Given the table of bond dissociation energies above (in kJ/mol), estimate the energy change for the ...

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Q: subscripts must be conserved. When one coefficient is doubled, the rest of the coefficients in the b...

A: Balanced chemical equation is that equation in which number of atoms on right hand side and left han...

Q: Give the following information for the encircled element in the molecules as shown below 4) |CH3CHCC...

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Q: A 0.3606-g of a weak monoprotic was dissolved in water and then titrated with 0.1040 N KOH solution....

A:     Given - weak monoprotic           = 0.3606-g titrated with solutions   = 0.1040 N KOH  Total Vol...

Q: Suppose the initial energy of a system (internal, kinetic, potential) is E the final energy is E, an...

A: First Law of Thermodynamics states that energy can be transformed from one form into another with th...

Q: A certain reaction has an equilibrium constant of 10.1 at 25°C What is its AG° in kJ/mol?

A: Using formula: ∆G°= -RTlnKeqm  Where, R--> gas constant(8.314JK-1mol-1)              T--> temp...

Q: Lewis dot

A: Lewis structure is the diagrammatic representation of the total number of valence electrons in an io...

Q: At a certain temperature the rate of this reaction is first order in NH, with a rate constant of 5.3...

A: Order of reaction = 1 Rate Constant, k = 5.31 s-1  

Q: If the wine is 15 %, how many milliliters  of ethanol, C2H5OH are present in a bottle containing 500...

A: Given,  Volume of the wine = 500 mL  Volume percent of ethanol in wine = 15%  Find the volume of the...

Q: How many signals would you expected in the 'H NMR of the following molecules? Br. (a) (b) (c)

A: Number of signal is equal to number of different type of hydrogen atom present in molecules

Q: Current Attempt in Progress 2.050 g of an unknown sample contains H, S, and O. If the compound conta...

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Q: Which of the following expressions is the correct equilibrium-constant expression for the reaction b...

A: The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical eq...

Q: Relationships between the Dipole Moment and the Boiling Point for Organic Compounds of Similar Molar...

A: Please find your solution below : Dipole moment is the calculation of net polarity of of a molecule....

Q: Exercise 2 Consider the three sp? hybridized orbitals, 1 25 + V3 1 2s - V3 2pz +2px 1 43 = V3 1 2Px ...

A: We have the following wave functions that we will be using during our calculations: ψ1=ψ1*=132s+232p...

Q: Calculate the mass of 1.92 x 1018 atoms of Mg. O 1.08 x 10 10 g O 2.16 x 10 1º g O 8.96 x 10 5 g O 7...

A: Given  Number of atom of Mg  = 1.92 × 1018  Mass = ?

Q: PLEASE HELP DRAW THE FREE RADICAL SUBSTITUTION  OF CYCLOHEXANE WHICH INOLVES THE 3 STEPS WHICH ARE i...

A: Free radical halogenation at cyclohexane give chlorocyclohexane as a product. Now chlorine can attac...

Q: Why do molecules exist independently?

A: Given question is : Why do molecules exist independently = ?

Q: Identify the conjugate acid of the compound shown in the box below. Provide a curved arrow mechanism...

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Q: 1. How many MOLECULES of nitrogen monoxide are present in 3.82 moles of this compound ? molecules. 2...

A:  no of molecules = mole× No

Q: What mass of a concentrated solution of nitric acid (68.0% HNO3 by ,ass) is needed to prepare 300.0g...

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Q: 3. In a pi bond, A. electron density lies along the internuclear axis. B. electron density lies abov...

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Q: 1. Determine the following values for a 0.020 m (NH4)CrO4 solution. a. Ionic strength, I (in molalit...

A: Given that : The activity explains the effective concentration of a substance in a given solution. G...

Q: Give the IUPAC name for the compounds shown below

A: g) 5-methyl-2-oxacyclohexanone   

Q: 5) The IUPAC name for the following compound is --- *

A: Rule of IUPAC- 1) Choose the longest chain as parent chain. 2) Numbering start from those side where...

Q: . Draw and label the molecular orbital (MO) diagram for CO–. Determine the MO ground state electron ...

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Q: 1. The [H30"], in M, of 10.00 mL of 0.100 M NaOH after adding 10.00 mL of indicator solution. To ent...

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Q: How many atoms are in 25.6 g tin? O 3.01 x 1023 atoms O 3.01x 1024 atoms O 6.02 x 1024 atoms O 1.30 ...

A: Given data:  Mass of tin = 25.6 g Standard data:  The molar mass of tin = 118.71 g/mol

Q: What is the atom ratio between C and H in C2H5OH? O 2/6 O 2/1 O 1/5 O 2/5

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Q: Two students, each made four measurements of the mass of an object. Their results are shown in the t...

A: Accuracy : this represent the result how closely to standard Value. Precision : This represent the r...

Q: Current Attempt in Progress A 2.05 g sample of an unknown compound contains H, S, and O. If the comp...

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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.