Calculate the amount of heat required to heat a 3.7 kg gold bar from 25°C to 70°C. The specific heat capacity of gold is 0.128 J/ gC

Q: 0. Given the reaction, Ca(s) + C(s) + 3/2 O₂(g) --> CaCO3(s) A cH= -1205.8 kJ/mol, how much heat is…

A: Ca(s)  +  C(s)  + 3/2O2 (g)   ------>  CaCO3(s)      delta H  = -1205.8 kJ/mol

Q: 2.4 One method of removing phosphate from wastewater effluents is to pre- cipitate it with aluminum…

A: To calculate the amount of alum (Al2(SO4)3) required to treat wastewater containing 30 mg/L of…

Q: b Draw the additional resonance structure(s) of the structure below? H₂C- :0: • Include all valence…

A: Resonance structure is the Lewis structure drawn by delocalizing the electron in another possible…

Q: How many significant figures are there in the answer to the following problem? (3.335 x 5.400) +…

A: Given,( 3.335 x 5.400 ) + 0.940 = ?

Q: Natural boron has a density of 0.128 x 1024 [at / cm³ ] and Cross section 5₂ = 764 [barns] and 0₂ =…

A: We have found out the microscopic cross section for absorption, for scattering and for total cross…

Q: What is the number of molecules in a 2.89 mol sample of NH, NO,? number of molecules:

A: The formula to calculate the number of molecules from moles is :=> number of molecules = moles x…

Q: Gaseous butane CH3CH22CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2…

A: The percent yield is the way used to represent the reactant’s amount that is transformed into…

Q: What is the m and n value for the wavelength 1282 nm?

A: Provided, the wavelength we can calculate the electron transition in the hydrogen atom by using…

Q: How many moles of ClF3 (g) will remain AFTER the reaction of 0.3000 moles of ClF3 (g) and 0.4000…

A: ClF3 (g) + 2H2O (l) → 3HF(g) + HCl(g) + O2 (g)Given:moles of ClF3 (g) = 0.3000 moles moles of H2O…

Q: Problem: Perform a conformational analysis 2-iodo-2-methylbutane, looking down the C2—C3 bond. Pay…

A: A question based on stereochemistry. For 2-iodo-2-methylbutane, conformational analysis is to be…

Q: D Question 7 Using a spreadsheet software (Excel, for example), plot the following data points and…

A: The concentration vs absorbance graph is used to determine the solution's concentration using…

Q: How many moles of Zn(NO3)2 are there in 560. g of this compound? Note: Molar mass of Zn(NO3)2 is…

A: Mass of 1 mole = molar mass

Q: BCC iron has a lattice parameter of 0.2866 nm. Carbon with a radius of 0.071 nm fills all the…

A: Point defects are localized disruptions within a crystal's otherwise perfect atomic or ionic…

Q: Name these aromatic compounds properly. N02 a) b) OH

A: Benzene ring is taken as parent.The ring is numbered so that the substituent gets lowest possible…

Q: g) Ph CO₂H OsO4 NMO

A: alkene compound containing C=C react with OsO4 / NMO to for diol product. Here cis diol formation…

Q: 11. As AG' increases, the barrier amplitude a. increases, increases b. increases, decreases c.…

A: In the context of chemical reactions, the activation energy (often represented as ΔG', where G'…

Q: In Mexico the cost of avocados are 48 pesos per kg. What is the cost in cents of an avocado that…

A: Question 1: Cost of Avocados in Different CurrenciesIn this question, we'll convert the cost of…

Q: Br2, H2O ОН Br

A:

Q: Which of the reactions shown below are correct? LOCH 3 Oii 0 CH3NH₂ H₂NNH₂ H+ OCH3 CH3NH₂ CH3NH OCH3…

A: Baisc about electrophile and nucleophile

Q: 42) For the following reaction, identify the Lewis acid. CI Fe-Cl CI | + A) I B) II C) III D) Both I…

A: Lewis acid: Substance which can accept electrons is called a Lewis acid.Lewis base: Substance which…

Q: Write the balanced nuclear equation for the beta emission of iodine-131 and identify the product…

A: Reaction of beta emission of iodine -131 :

Q: Choose the correct structure for 2,6-diethyl-5-methyldecane: je ste dom OD ов OA Oc

A:

Q: For a BCC crystalline structure, determine the ratio of the planar density in the (101) plane to…

A: Assume that length of the edge of the unit  cell is "a".

Q: 81S S- -CH₂ LiAlH4 ?

A: The reduction of (methylsulfinyl)benzene using lithium aluminum hydride (LiAlH4) results in the…

Q: А) How many present? HNMD and C NMN бедповале

A: NMR spectroscopy deals with the nature and behaviour of the NMR active nucleus in external magnetic…

Q: Use A Hº formation values neutralization for the 1₂ SO 4 caq) + 2NaOH cqg) -> 2H₂0 (x) + Naz Songs]…

A:

Q: Imagine two containers. Container "A" holds N2 gas with a mass of 72.9 g and is 3.7 times the volume…

A:

Q: Using Newman projections draw the most stable and least stable conformers of 3-methylhexane, viewed…

A: Newman projection:Its assumes that the viewer is looking along the longitudinal axis of a particular…

Q: What is the minimum mass of oxygen, in grams needed to burn 28 g of C6H14O?

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: Assuming two molecules of FeCl3 are produced in the balanced reaction equation below, how many iron…

A: 2Fe + 3Cl2 ⟶ 2FeCl3Number of FeCl3 molecule produced = 2 moleculesNumber of iron (Fe) atoms involved…

Q: Identify the orbital.

A: The atomic orbitals can be defined as the mathematical wave functions that represent the wave nature…

Q: Where did 4.667 x 10^-7 come from?

A: The value 4.667 x 10-7 comes from substituting the value for Ka3 and equilibrium concentrations…

Q: Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation:…

A:

Q: a Draw a structure for the product of the acid-base reaction below. :0: + BF3

A: Given is acid-base reaction. reactants are tetrahedrofuran and boron trifluoride.

Q: Classify the transformation as a reduction, oxidation, or neither. H₂C. This reaction is: O a…

A: Oxidation: In this transformation, the product will have added oxygen atom.Reduction: In this…

Q: The speed of an electron is 5.5 × 105 ± 3.5 × 10³ m/s, the uncertainty in its position (in m) is at…

A: According to Heisenberg's uncertainty principle, “it is impossible to calculate the position and…

Q: Examine each pair of molecules. Classify the pair as constitutional isomers, diastereomers,…

A:

Q: A 3.61 gram sample of an unknown gas is found to occupy a volume of 2.49 L at a pressure of 434 mmHg…

A: Answer:Here:

Q: Construct the CH3Br molecule in MolView and select the most accurate value of the H-C-H bond angle…

A: Given question related to determining the bond angle in CH3Br molecule.

Q: Part B Br Spell out the full name of the compound. Br Part C CH₂ CH3 CH₂-CH3 Spell out the full name…

A: Give numbers to the benzene ring in such a way that the substituents get the lowest possible…

Q: Choose the correct reagent(s) for the following reaction. O A. 1.H20/Hg(OAC)2 2. NaBH4 OB. H20/H2S04…

A: In the first reaction,the required reagent is BH3/THF and H2O2/NaOH . This reaction is Known as…

Q: In each row check off the boxes that apply to the highlighted reactant. reaction Fe³*(aq) + 6 H₂O(1)…

A: Answer:When a specie loses H+ ion in its solution then it is called as Bronsted-Lowry acid and the…

Q: Calcium is a major component of human bones. In the absence of Calcium which of the following…

A:

Q: For the given molecule, identify the hybridization for atoms labeled (a, b) and indicate the…

A: The hybridization is defined as the mixing of two types of orbitals which gives a new orbital known…

Q: Calculate the number of atoms in 65.0g of Cu

A: Given, mass of Cu = 65.0 g,molar mass of copper(Cu) = 63.546 g/mol => moles of Cu = mass of Cu /…

Q: Predict the product for the following reaction. O Na, CH3OH NH3

A: The given example is catalytic type of birch reduction reaction.

Q: 2. Draw (and rank!) all potential diagrams to represent the three most stable C2-C3 conformers of…

A: Given molecule:We have to draw and rank the three most stable C2-C3 conformers of the molecule given…

Q: What type(s) of intermolecular forces are expected between PF₂Cl3 molecules? Choose all that apply…

A: we will explore the intermolecular forces expected between molecules of PF₂Cl₃, a chemical…

Q: Write the chemical equation using full structures for the reaction hydrolysis reaction of ethyl…

A: Given reaction is hydrolysis of ethyl butyrate.Ethyl butyrate is an ester.The hydrolysis reaction is…

Q: Calculate the K₂ value for the following acids. (Enter your answer to three significant figures.) a)…

A: Given,            a) Formic acid ( pKa=3.75 )            b)  Ethanol ( pKa = 16.00 )           a)…