In the lead content analysis of a wastewater sample, 50.00 mL of the original sample was taken and diluted with 150.00 mL deionized water. The diluted sample was found to have a lead content of 17.8 ppb. What is the lead content (in ppb) of the original wastewater sample?

Q: (a) Draw molecular orbital energy level diagram of CN molecule. Give its bond order.

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Q: Compound A (CH,,0)

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Q: Calcium carbonate decomposes to form calcium oxide and carbon dioxide, like this: CACO3(s) CaO(s)+CO...

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Q: For each of the following compounds, give the correct R/S notation for all stereocenters. ÇH(CH)2 H ...

A: R ans S nomenclature system is important nomenclature system to denoting enatiomsrs. This approach l...

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

A: 1) Br2 this molecule is non-polar as the dipole moment of the molecule is zero.

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Q: Seawater was spiked with phosphate to achieve a quantifiable range of phosphate concentrations by sp...

A: A question based on tools in analytical chemistry that is to be accomplished.

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Q: Need the mechanical properties of the polymers

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Q: itrogen (N, gas and hydrogen (H, gas react to form ammonia (NH, gas. Suppose you have 5.0 mol of N, ...

A: N2(g) + 3H2(g) ----> 2NH3(g) Number of moles of N2 = 5 moles Number of moles of H2 = 2 moles  

Q: Determine the Kb for cocaine (a base). To do this, construct an ICE table to determine concentration...

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Q: Give ONE (1) example each for natural and synthetic polymers.

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Q: Calculate the value of the equilibrium constant, Ke , for the reaction Q(g)+X(g) = 2 M(g)+N(g) given...

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Q: The Pauli Exclusion Principle tells us that no two electrons in an atom can have the same four quant...

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Q: (Q103) Consider the formation of phosphorus pentachloride from phosphorus trichloride and chlorine g...

A:          PCl3(g) + Cl2(g) -----> PCl5(g) I :    0.450 M   0.450 M    0.100 M

Q: 4. During the process of freezing, what do you know about changes in the temperature and entropy of ...

A: Given statement is :  During the process of freezing, what do you know about changes in the temperat...

Q: What is a carbenoid? Discuss and illustrate.

A: carbenoid is a reactive intermediate that shares reaction characteristics with a carbene.

Q: Iron and water react to form iron(III) oxide and hydrogen, like this: 2 Fe(s)+3 H,O(g)→Fe,03(s)+3 H,...

A: for a given reaction, 2 Fe(s) + 3 H2O(g) → Fe2O3 (s)+ 3 H2(g) volume of reaction vessel = 3.9 L  

Q: NO, (aq) +0,(g) NO, (ag) +0,(g) The following data were collected for this reaction at 298 K. Calcul...

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Q: .Types of volumetric analysis are Three. Four. Five.

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Q: (a) Discuss the stepwise mechanism for the hydrogenation of alkenes using Willkinson's catalyst by t...

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Q: Considering three identical flasks filled with different gasses. Flask A: CO at 760 torr and 0º C. F...

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Q: 2. Using the Roman Numerals provided, rank the following compounds in order of increasing boiling po...

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Q: What are the differences in the mechanism of corrosion protection by galvanizing and chrome plating ...

A: The main difference between galvanisation and chrome plating is used metal. I.e. zn or CR.

Q: N2(8) + 2H2(g)- given the following thermochemical equations: N2H4(). N2H4) + O2lg) 2H20() + N2(g) A...

A: we have to calculate the enthalpy change for the reaction, N2(g) + 2H2(g) → N2H4(l)

Q: O L-xylose O D-xylose O D-erythrose O L-erythrose O D-ribose O L-ribose O D-threose O Lthreose

A: It is monosaccharide. 

Q: 44. Select the answer choice that correct identifies if the bonds formed would be nonpolar covalent,...

A: 1) Ionic bonds : bonds that are formed by complete transfer of electrons.Generally formed between a ...

Q: Acetylene (CH.) gas is often used in welding torches because of the very high heat produced when it ...

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Q: (b) Calculate the CFSE in following complexes: 1) Ni(NH3)j* (ii) [Fe(CN)s}*

A: Given,  Calculate the CFSE in the following complexes :  (i). [Ni(NH3)4]2+  (ii). [Fe(CN)6]3-   

Q: Assuming ideal gas behavior, calculate the mass of H2 (in g) present in the reaction mixture at equi...

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Q: .required components in an electrochemical corrosion cell . Two. Four. O Three. O

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Q: Draw the major organic product(s) the following reactions: No mechanisms are required, just the fin...

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Q: Use the Ref Match the orbital drawing on the left to the type on the right. Clear All Submit Answer ...

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Q: What is freezing point depression? Cite your sources

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Q: MOLAR MASS MASS (9) FORMULA NUMBER OF MOLES (g/mol) 2. CHNOS 0.4249

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Q: If the pKa of a weak acid HA is 3.84, what is the pkb of its conjugate base A-

A: Given Data :  pKa = 3.84  To Find : pKb    

Q: Which of the following substances are likely to be soluble in water? a. Ag2O b. Ba(NO3)2​​​c. Fe2O3 ...

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Q: What is the pH of a buffer made of 1.4E-1 M CH3COOH(aq) and 4.6E-1 M NaCH3COO(aq)? Ka for CH3COOH = ...

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Q: Solve the following problems and show complete solutions. The final answers must be reported in prop...

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Q: O THERMOCHEMISTRY 0/5 Using specific heat capacity to find temperature change A chemical reaction ta...

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Q: Describe the organoleptic characteristics of an activated charcoal

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Q: Types of corrosion are. Nine. Eight. Seven.

A: Types of corrosion are given below.

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.