What number of molecules (or formula units) are present in 2.93 g of each of the following compounds? N a. molecules N b. molecules c. (NH,), Cr,0, formula units

Q: Cellulose contains linkages that be digested by animals. --> 4 glycosidic ; can a1--> 6 glycosidic; ...

A: In cellulose, glucose monomers are linked in unbranched chains by Beta 1-4 glycosidic linkages hence...

Q: Part A What volume (in mL) of a 0.150 M HNO3 solution will completely react with 35.7 mL of a 0.108 ...

A: The correct answer is given below

Q: CH3 HCI CH3 H3C (b) H3C. HBr H3C. CH3 Br (с) HBr or (d) HCI

A: Given 

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Q: Part A A compound of X and Y is X by mass. The atomic mass of element X is the atomic mass of elemen...

A: To determine the empirical formula , we need to determine mole ratio between X and Y. For this we wo...

Q: Calculate the standard enthalpy change for the reaction at 25 °C. Standard enthalpy of formation val...

A:

Q: The percent by mass of nitrogen for a compound is found to be 63.7%. Which of the following could be...

A: Given -> Percent by mass of nitrogen = 63.7%  

Q: (a) Pure iron has a change in crystal structure from BCC to FCC when heating up above 912°C. If the ...

A: A unit cell is a most basic and least volume consuming repeating structure of any solid.  BCC- Body ...

Q: Hexamethylenediamine (C6H16N2) is one of the starting materials for the production of nylon. It can ...

A:

Q: A 600.0 mg sample consisting of only CaC2O4and Mg C2O4is heated at 500oC converting the two salts to...

A: Answer: This question is based on the stoichiometric calculation where ratio of the mass of a reacta...

Q: • The molar absorption coefficient e at 590 nm for In is 2.85 x 10 M cm • The length of the cuvette ...

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts fo...

Q: The acid dissociation constant K, of acetic acid (HCH,Co,) is 1.8 x 10. D. Calculate the pH of a 0.5...

A:

Q: A 5.70-g chunk of potassium is dropped into 1.00 kg water at 24.2°C. What is the final temperature o...

A:

Q: Given the following data 2 CIF(g)+ O2 (g) Cl, O(g) + F,0(g) 2 CIF3 (9) + 202 (g) → Cl, O(9) + 3F,0(g...

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a che...

Q: In 1993 the Minnesota Department of Health set a health risk limit for ethyl ether in groundwater of...

A:

Q: Which of the following reactions require a metal catalyst?   a CH3CH=CH2 to CH3CH2CH3   b CH3CH=CH...

A:

Q: Question 1 This following is the reaction for the synthesis of ammonia: N2 + 3 H2 + 2 NH3 At a certa...

A:

Q: A solution is made by dissolving 25.1 g of barium acetate, Ba(CH3CO0)2, in enough water to make exac...

A:

Q: . A solution may contain any of the three group I cations. A white precipitate is formed upon he add...

A: Analysis of group I cations .

Q: This question has multiple parts. Work all the parts to get the mnost points. a Calculate AH for the...

A:

Q: Write the molecular equation for the neutralization of NaOH(ag) solution by aqueous perchloric acid....

A: Given - Reaction between NaOH(aq) and Perchloric acid.  

Q: Free Energy (kcal/mol) 25 20 15 10 Reaction progress Use the reaction energy diagram above to answer...

A: The energy diagram given is,  

Q: Calculate the alpha values for the diprotic acid, oxalic acid, for every 0.5 pH units from pH - 0.0 ...

A: To plot the distribution curve for the diprotic acid (Oxalic acid) for every 0.5 pH units from pH 0 ...

Q: For answers to calculations, use the correct number of significant figures. The percentage of sodium...

A: To calculate mass % of NaHCO3 in given mass of sample , we would need to calculate mass of NaHCO3 in...

Q: Maleic acid is an organic compound composed of 41.39% C, 3.47% H, and the rest oxygen. If 0.212 mole...

A: Given,  Maleic acid has 41.39 % C, 3.4 % H and the rest  oxygen i.e. 55.21% O  Number of moles of Ma...

Q: Create a sample word porblem about

A:

Q: Question 3 What is the reaction order for the decomposition of p-toluenesulfinic acid? 3 CH3C6H4SO2H...

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical reacti...

Q: Which element has the following configuration? 1s 2s? 2p° 3s? 3p® 3d? 4s? 1s 2s 2p° 3s? 3p° 3d10 4s²...

A: 5.  Given :-  Electron configuration :  a) 1s22s2263s23p63d74s2  b) 1s22s2263s23p63d104s24p64d15s2  ...

Q: 3.) For each process, determine the sign of AS for the system: (a) decomposition of CaCO3(s) to give...

A: To solve this problem we have to determine the sign of ∆S  for the given system .

Q: Calculate the molar mass of Al2 O3. Molar mass = = g/mol Calculate the molar mass of Al(NO3)3. Molar...

A: given :-  molecular formula :  Al2O3  Al(NO3)3  To be calculated :-  molar mass of given compounds

Q: 6. An aqueous solution A is prepared by dissolving 0.1 mol potassium chloride and 0,1 mol sodium nit...

A: The given solutions A and B are prepared by dissolving different strong electrolytes in the water. S...

Q: 500

A: What are the molar concentrations of acetic acid (CH3COOH) and sodium acetate (CH3COONa) in an aqueo...

Q: If one mole of the following compounds were each placed into separate beakers containing the same am...

A: Concentration of Cl- after dissociation ; NaCl ⇌ Na+ + Cl-  CrCl3 ⇌Cr3+ + 3Cl- PbCl2 ⇌Pb2+ + 2Cl- KC...

Q: What is the formula mass of Mg(NO3)2? Express your answer to four significant figures and include th...

A:

Q: Reaction product (BH3 + Propene) is

A: The reactants given are BH3 and propene.  

Q: Using a first to last order structure, explain why and write the order in which K, Au', Pb", Al", Cu...

A: The solution of the question is given below: 

Q: A chemist makes 550. mL of copper(II) fluoride (CuF,) working solution by adding distilled water to ...

A:

Q: Which of the following compounds would you expect to show ultraviolet absorptions in the 200 to 400 ...

A:   a) Due to lack of conjugation, we need to talk only simple alkene. For simple alkene its value nea...

Q: The Kjeldahl method was used to determine the nitrogen content of a soil sample. 25 g soil sample wa...

A: Solution: We know Kjeldahl method is used to determine the nitrogen content of the any sample. Overa...

Q: ANION ELIMINATION TEST OBSERVATIONS ADDED REAGENT(S) OBSERVATIONS Ba(NO3)2 NVR HNO3, Fe(NO3)3 Blood ...

A:

Q: Question 4 459 C of charge is passed through a solution of AICI3(aq). Determine the number of moles ...

A: Given , Total charge passes, Q = 459 C. Faraday's constant, F = 96485 C/mol e

Q: 9.) Use Hess's law to calculate AG°rxn using the following information. NO(g) + 0(g) → NO2(g) 2 03(g...

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Q: b What is the net ionic equation for the reaction of solid barium carbonate and hydrogen bromide in ...

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Q: [Raturances It has been determined that the body can generate 5500 k) of energy during one fiour of ...

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Q: Which of the following compounds would produce the highest concentration of I ions when 0.10 mol of ...

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Q: Find the subspace of values that balances the chemical equation in which glucose ferments to form al...

A: The values of x are

Q: The proton resonance of the OH group is found at δ 5.80 for phenol and at δ 10.67 for 2-nitrophenol,...

A: Given    OH (δ value) 5.80 10.67

Q: Σ *00 FL II O CHEMICAL REACTIONS Identifying the limiting reactant in a drawing of a mixture The dra...

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Q: How many different monosubstituted products are possible when ethylcyclopentane reacts with one equi...

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Q: The solubility of rubidium nitrate in water is 150 g/L at 20 degree C. A solution is prepared at 20 ...

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.