Choice 141 - 0-12 snucoon 564 + 10-1 jinucieon 137 - 10-2 sinucleon 548 - 10- Jinucieon

Q: In mining, roasting is the oxidation of metal sulfides to produce metal oxides and sulfur dioxide, a…

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Q: 5. Of the following ions, the one with the least amount of electrons will be: A) S2- B) S C) S2+…

A: Given ions: S2- S S2+ S6+ S4+ We have to find the ion that has the least amount of electrons.

Q: 7. Which of the following contain polar covalent bonds? a. ammonia, NH3 C. ozone, O3 b. chlorine,…

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance.

Q: Determine the total number of sigma (ơ) bonds and the total number of pi bonds in the compound…

A: Determine the total number of sigma (ơ) bonds and the total number of pi bonds in the compound…

Q: Sources of Error Determine the relationship between the observed/apparent value (EX) VERSUS that of…

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Q: 4.A(aq) + 3B(aq) = C(aq) + 8D(aq) AG355K =? The reaction above was run at 388K and allowed to come…

A: The reaction given is, => And the equilibrium concentration of species at 388 K are,

Q: Write the balanced NET ionic equation for the reaction when aqueous BaCl, and aqueous (NH,),SO̟ are…

A: • Aqueous barium chloride on reaction with aqueous ammonium sulphate gives aqueous ammonium chloride…

Q: Calculate the H3O+ concentration from each pH: (a) 2.42;    (b) 13.39.

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Q: The density of dry air at 25 °C and 1 atm pressure is 1.184 mg/ml. What will be the density if the…

A: Relative humidity of air is given by: ϕ=PH2OP*H2O where, PH2O and P*H2O are the vapor pressure of…

Q: Saved A city's water supply is contaminated with a toxin at a concentration of 0.63 mg/L. For the…

A: Given-> Initial concentration of toxin = 0.63 mg/L Final concentration of toxin=1.5 ×…

Q: When the following equation is balanced properly under basic conditions, what are the coefficients…

A: The reaction given is, => N2O + S → NO2- + S2-

Q: In the laboratory, a general chemistry student measured the pH of a 0.544 M aqueous solution of…

A: We have to calculate the acid dissociation constant.

Q: K=2 K= At equilibrium? At equilibrium? O yes O yes no O no K K At equilibrium? At equilibrium? O yes…

A: The equilibrium constant is defined as the ratio of the concentration of the product to that of…

Q: Sodium carbonate (MM = 105.988 g/mol) is a primary standard base that reacts with hydrochloric acid.…

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Q: Epinephrine contains the __ group that is absent in norepinephrine. The donor of this group is…

A: The structure of epinephrine and norepinephrine is as follow:

Q: Find the molality of a solution made by adding 9g of NaOC| to 4000g of water, (MW: Na=23, CI=35)

A:

Q: A completely made up compound of fluoride, XCl2, is found to have a molar solubility of 8.31 x…

A: Given :  Concentration of AlCl3 = 2.43 M  Molar solubility of XCl2 = 8.31 x 10-23 mol/L

Q: Consider the following chemical reaction at equilibrium Co(g)+ H2O (g) co2(g)+H2(g)Of H2 is removed…

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Q: Name these coordination compounds. formula MoBs,(H,0).] Br

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Q: An ingredient of Tiger Balm salve is composed of C, H and O.  A 0.1005 g sample of the ingredient is…

A: Given :  Weight of sample = 0.1005 g  Weight of CO2 produced = 0.2829 g  Weight of H2O produced =…

Q: Calculate the pH of each of the following solutions (b) a solution that is 0.115 M in NaCIO and…

A: Given: pH of the given solution has to be calculated. (b) a solution that is 0.115 M in NaCIO and…

Q: The concentration of hydrogen peroxide decreases from O. 1 mol/L to 0.05 mol/L in 900 s at 240C on…

A: a ) Half life is defined as the time required to reduce the concentration of a substance to half .…

Q: CH3 N2 ÇH3 CH3 `CH3 HO3S N,N-dimethylaniline methyl orange

A: The reaction given is,

Q: Under which circumnstances is it appropriate to apply the pre-equilibrium approximation

A: It is asked in the question where to apply pre-equlibrium approximation.

Q: CHM220 Page 3 он m. CH3 n. HC

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Q: on dissolving into their respective solvents (water in all cases, ex Vis absorption is monitored…

A: We know that UV-Vis spectroscopy is a useful technique for the structure elucidation of a compound.…

Q: The US Department of Health recommends adding sodium fluoride to municipal drinking water to reduce…

A: Given : Solubility of NaF = 1.5×10-3 g L-1 Molar mass of NaF = 42 g mol-1  Molarity of NaF = ?

Q: ОН Br Br

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Q: A (3.6500 g) of impure ammonium aluminium sulfate (NH4AI(SO4)2)) was treated with ammonia (NH3(aq))…

A: Given: Mass of sample = 3.6500 g. Mass of Al2O3 formed = 0.4935 g.

Q: EIO OEt Predict the major product of the following reaction sequence. 1) NaOEt 2) -Br ? EtO OEt 3)…

A: Note : Diethyl malonate reaction with sodium ethoxide and alkyl halide results C-alkylation at…

Q: Fig. 1 shows the possible effect of pH on recovery and impurity removal at the selection of a…

A: The Y-axis of the graph represents the percent recovery of the impurity, and the X-axis of the graph…

Q: Calculate the heat energy released when 19.0 g of liquid mercury at 25.00 °C is converted to solid…

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Q: Suppose for a synthesis of hydrogen fluoride from hydrogen and fluorine, 3.000 moles of H2 and 6.000…

A: The equilibrium reaction given is,  => H2 (g) + F2 (g) ↔ 2 HF (g)                          Kc =…

Q: In a closed vessel, 6.40 grams of carbon monoxide reacted with 17.35 grams of 02 1. What is the…

A: Given: Mass of CO taken = 6.40 g. And mass of O2 taken = 17.35 g. Molar mass of CO is 28 g/mol and…

Q: what is the condensed formula for 2-methyl-2-hexene

A: Given :-  IUPAC name of compound = 2-methyl-2-hexene  To write :- its condensed formula

Q: [4] Write down an expression for the average potential energy of a harmonic ocillator in the first…

A: This is how we can calculate

Q: II. Balance each redox reaction in acid solution using the half reaction method. 5. H2O2 + Cr207 2-…

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Q: An 80.0 g sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was…

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Q: Identify the reagents needed to achieve the following transformation. If any of the steps aren't…

A: We have to carry out the given transformation.

Q: What is the molarity of 0.3882 g of KCl (MM=74.55 g/mol) in 0.5000L solution? (No solution No…

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Q: Balance the reaction below; determine the sum of the coefficients; this is in an acidic solution!…

A: The reaction given is, => BrO3- + Cd ↔ Br2 + Cd2+

Q: _t volume of the 1.76 M H2O2

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Q: of strong bases. From the following solutions choose the one(s) that have the largest buffer…

A: The solutions given are  I. 1.50 M HF and 0.10 M NaF II. 0.10 M HF and 1.50 M NaF III. 1.50 M HF and…

Q: Radioactive decay is measured in terms of "half-life", which is the number of years required for…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: pr the balanced equation shown below, how many moles of SOs will react with .7727 moles of CaHsS? he…

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Q: -Mannose + NABH,

A: What the reaction when mannose react with NaBH4 ----

Q: help with mechanism plz NH3 -он 2 CI 'N' S. H. NaOH Он

A: The reaction given is,

Q: Which of the following substances are strong electrolytes? HClO3, HC2H3OO, NH3, HNO3, KCl, C6H12O6.…

A: The substances given are HClO3, HC2H3OO, NH3, HNO3, KCl and C6H12O6.

Q: Substance AH: Substance AH kJ mole mole |-189 216 206 |-177 |-229 IF B G D 61 Please calculate the…

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Q: 000 1 K-3 K=2 At equilibrium? At equilibrium? no yes O yes no K= 4 K= 11 At equilibrium? At…

A: At equilibrium Q = K....