C2H5OH= (-234.8) O2= (0) CO2= (-393.5) H2O= (-285.8)

Q: AHjattice ΔΗ, II

A:

Q: What is the process:  a. Converts 214Bi to 214Po               b. Converts 40K into 40Ar

A: There are three common types of decay. 1) alpha decay  2) beta decay 3) gamma decay

Q: Which of the equations is NOT CORRECT? A B D y2 - gR w? - GM R2 %3D y2 -GM y² _ GM w? -

A: D is not correct

Q: Why does Cv≠ Cp?

A: Heat capacity is defined as the quantity of heat required to raise the temperature of the system by…

Q: What is the coefficient the should be placed in front of iron (II) oxide (Fe203)?* LizO+ FeCb LİCI +…

A: We have given the incomplete reaction which is         Li2O +     FeCl3  →       LiCl +     Fe2O3…

Q: (b) Provide the missing components from the following : Me NH MeOH H2N H. r.t. POCI3 DCM, 40 °C Et…

A:

Q: 6. CH, + 02 -> CO, + H,0 - 7. Al + CUCI, -> Cu + AICI, Pb(NO,), + KCI -> KNO, Fe(OH)+LIGI ZnSO, + H,…

A: 1). The combustion of methane or octane is exothermic; it releases energy. CH4 + 2 O2 → CO2 + 2 H2O…

Q: A lead compound would be most promising if it had: A.KM = 4.7 × 10^5 M. B.K(I) = 1.5 × 10^-8 M.…

A: The Lead Compound would be most promising if the K(I) value is the least among all given values . As…

Q: nd 107.0 kPa? * D 47.3 g/mol DNone of these is correct.

A: Note : As per guidelines allowed to answer  first one  Ideal gas equation : It is the hypothetical…

Q: How many grams of Ba(103)2 (487 g/mol) can be dissolved in 300 mL of water at 25°C. (Ksp of Ba(103)2…

A: The salt Ba(IO 3) 2 dissociates as :  Ba(IO 3) 2 --> Ba 2+ + 2 I O3 - Thus, Solubility product of…

Q: Calculate the Ksp for Ca(OH)2 for each trial

A: The dissociation of calcium hydroxide is as follows. CaOH2s⇔Ca2+aq+2OH-aq That means concentration…

Q: When you do DeltaT, why don't you calculate Tf-Ti for both substances but instead calculate Ti-Tf…

A:

Q: Thallium is a very toxic element. Ion Tl+ is prone to form strong compounds with sulfur- containing…

A:

Q: Assume that student reacts 1.55 mL of 2-methylcyclohexanol (d=0.93 g/mL) with 0.50 mL of 85 %…

A: To express the efficiency of a reaction ,you can calculate the percent yield .     % yield = actual…

Q: Al3 IЕО%3-1.66 V + Зе --> Al Tit2 + 2e -> Ti E° =-1.63 V

A: According to the given SRP values  "Ti " metal has more reduction potential , hence it acts "Ti…

Q: r in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4 (253.33 g/mol). Calculate the…

A: According to the question, Cr in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4…

Q: stoichimetric

A: According to the question, we need to determine the stoichiometric ratio of Fe3O4 in Fe2O3.  Let the…

Q: Cr in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4 (253.33 g/mol). Calculate…

A:

Q: Vanadic ion, V3+, forms green salts and is a good reducingagent, being itself changed in neutral…

A: Oxidation state of V in V(OH)4+ is +5 and Oxidation state of V in V2(SO4)3 is +3. Given…

Q: Calculate AH for the following chemical reaction. 2Mg(s) + O₂(g) → 2MgO(s)

A:

Q: A 0. 4054 g solid organic sample containing covalently bound bromide and no other halogens was…

A: Given that : The mass of the solid organic sample = 0.4054 g The mass of AgBr produced = 37.8 mg The…

Q: A 0.7336-g sample of an alloy that contains copper and zinc is dissolved in 8 M HCl and diluted to…

A: Given information: Mass of alloy = 0.7336 g Volume of the solution = 100 mL Mass of the sample…

Q: 1. A student synthesized 3.214g of Ni(NH3),Cl2 from 4.023g of NiCl2 6H₂O. He dissolved 0.81g of…

A: To find out the concentration of Ni2+ and the mass percent of nickel in the product.

Q: Using the provided data table, calculate ΔrxnH for the following reactions: a) 2O3(g) ⇌ 3O2(g) b)…

A: The ΔHrxn for the given reaction can be calculated as follows: ∆Hrxn=∆Hf (products)-∆Hf (products)

Q: Barium sulfate is a contrast agent for X-ray scans that are most often associated with the…

A: Answer:- This question is answered by using the simple concept of calculation of molar solubility…

Q: 4. A sample containing a mixture of gm / mole (NaCI 58.44) and NaySO with a weight of 0.9532 gm…

A:

Q: If the plant poduces 1.6*10- kg(1600 metric ton) of Cl2 daily, estimate the quanties of H2 produced…

A: Given: Mass of Cl2 = 1600 metric ton = 1600 ×103 Kg = 1600×106 g Molar mass of Cl2 = 70.906 g/mol…

Q: Calculate AS,º for NH3(g). AS:º = i JK-1

A: To calculate ∆S°f for NH3 (g) , we would first write a reaction for formation of NH3 (g) . Then…

Q: The reaction of NbCl4(THF)2 with pyridine in the presence of a reducing agent gives NbClx(py)y which…

A: Solution Molecular Formula of Pyridine is. Molecular weight of Pyridine is 79.0999. Atomic weight of…

Q: How many grams of Ba(103)2 (487 g/mol) can be dissolved in 400 ml of water at 25°C. (Ksp of Ba(103)2…

A:

Q: A516.7 mg sample containing a mixture of K2SO, and (NH4)2S0, was dissolved in water and treated with…

A: The mass of the mixture [K2SO4+(NH4)2SO4] = 516.7 mg The reaction can be given as follows:…

Q: A 0.4755-g sample containing (NH4)2C2O4 and inert compounds was dissolved in water and made alkaline…

A: Interpretation: The percentage of N and (NH4)2C2O4 in the sample are to be determined. Given: Sample…

Q: Some people have an allergic reaction to the food preservative sulfite (SO32−). Sulfite in wine was…

A: Given the excess I3-(aq) is back titrated with S2O32-(aq) according to the below-balanced equation:…

Q: the mass of Ag2CO3 will be formed? Discuss your results. 2AgNO3(aq) +N22CO3(aq) → Ag2CO3() +…

A: A)Use stoichiometry calculation to get the answer. B) normality= molarity×nfactor

Q: What is the enthalpy of reaction (in kJ/mol rxn) for CaCO3(s) → CaO(s) + CO2(e) if Ca(s) + Cgraphite…

A:

Q: What is the coefficient the should be placed in front of iron (II) chloride (FeC13)?* Liz0 + FeCb…

A: We are given the unbalanced chemical reaction. _ Li2O+_ FeCl3→_ LiCl+_Fe2O3

Q: How many grams of potassium citrate (C6H5K3O7 * H2O - mw 324) should be used in preparing 500 mL of…

A: Moles of solute per unit volume is known as Molarity

Q: 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. 10.00 mL of solution…

A: Dilution factor is defined as the ratio of stock volume to the total volume. 5ml (stock)…

Q: • Determination of Mass Percent of Ammonium Chloride • Mass of evaporating dish and original sample…

A: The percent of a substance in a sample of mixture  is calculated using formula : Percent = ( mass of…

Q: Chemistry Explain why manganese which has an average minimum exploitable grade of 35% has a higher…

A: The concentration factor is defined as the ratio of average concentration of an element in a mineral…

Q: Calculate CFSE of K2[Fe(NCS)5]

A: It is given that a complex K2[Fe(NCS)5] needs to be calculated, To calculate the oxidation state of…

Q: For the following reaction, calculate the value of Q. 4A + 2B - 3C [A] = 0.85 [B] = 0.24 [C] = 0.54

A: The amount of reactants and products ,relative to each other in a chemical reaction is called…

Q: Calculate the final molarity of H2O2H2O2 if 5.1 mL5.1 mL of a 3.0% w/w H2O23.0% w/w H2O2 solution,…

A: H203 solution is3.0 5 so 100 g of h202 solution contain 3 g calculate volume of 100 g solution…

Q: A 10.0 g sample of KCgH5O4 (A)(MW = 204.23 g A) was titrated with 50.00 mL of KOH (B) to endpoint.…

A: The balanced reaction taking place is given as, => Given: Mass of KC8H5O4 taken = 10.0 g. The…

Q: What would be the observation following mixing BaCl2 and Pb(NO3)2?

A: Mixing of BaCl2 and Pb(NO3)2  Pb(NO3)2(aq) + BaCl2(aq)  -> PbCl2 (s) + Ba(NO3)2 (aq)

Q: Sulfate (SO2) is typically determined by dissolving in H₂O followed by precipitation as BaSO4 via…

A:

Q: ASSume an excesS of of Zn? t Iz fac) +Zn Iz faa) 2.

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Calculate the standard enthalpy of formation of CaCO3 at 298K in kJ/mol from the following data: CaO…

A: The standard enthalpy of formation of a compound means the enthalpy of the compound for its…