Aspirin, C9H8O4, is a common pain reliever and is also often given in low doses daily for prevention of heart attacks. How many grams of aspirin are present in a sample that contains 0.0745 moles?

Q: Describe the preparation of the following reagents. 1. 250 mL of a solution that is 0.0376 N Mgl2 fr...

A: (1)  Given that -  Volume of MgI2 = 250 mL  Normality of MgI2 = 0.0376 N  Then -  Normality = Weight...

Q: 34. CН4

A: This question belong to redox reaction, we have this question with followed all rule of calculation ...

Q: Write the balanced molecular, ionic and net ionic equation when Calcium Nitrate is mixed with Alumin...

A: Given reactants are :  Ca(NO3)2 and AlPO4  Write the balanced molecular equation = ?  Write the bala...

Q: How many neutrons are in in Neon 22? 6Ne This is an isotope of Neon, normally Neon has an atomic mas...

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the n...

Q: 1. The [H30"], in M, of 10.00 mL of 0.100 M NaOH after adding 10.00 mL of indicator solution. To ent...

A:

Q: Consider the species HC4H406-, C4H4062-, derivatives of tartaric acid. Each ion can act as base in w...

A:

Q: Internal pressure is roughly equal to zero at high temperatures.

A: Internet pressure is used to measure the internet energy of the system. 

Q: A 9.37 g sample of an unknown element was determined to be 0.0714 moles. What is the identity of the...

A:

Q: What is the following compound's systematic name?

A:

Q: How many chiral carbon atoms are here in the Cholesterol molecule? What is the configuration, R or S...

A: A chiral carbon atom have 4 different group attachment.

Q: 1.) Arrange ice, liquid water, or water vapor according to their decreasing strength of intermolecul...

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

Q: Visited .Tow many MOLES of sulfur dichloride are present in 1.69 grams of this compound ? moles. 2. ...

A:

Q: How many bananas are in 0.10 moles of bananas?

A:

Q: You are part of a group of pharmaceutical chemists who are currently characterizing potential lead c...

A:

Q: If Giorno Giovanna measured the mass of a product in order to calculate the amount of analyte presen...

A:

Q: The magnesium spectrum has a line at 266.8 nm. Which of these statement/s about this radiation is/ar...

A:

Q: Lewis diagram

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any spe...

Q: TRial 1 Trial 2 Trial 3   0.1 N HCl 0.1 N NaOH 0.1 N HCl 0.1 N NaOH 0.1 N HCl 0.1 N NaOH Fi...

A: Given that, the tritation of 0.1 N of HCl by 0.1 N of NaOH. The data table is shown below   Trial...

Q: Consider a 1D particle in a box confined between z = 0 and z = 3. The Hamiltonian for the particle i...

A:

Q: A chemist adds 1.90L of a 0.106 M potassium dichromate K2Cr2O7 solution to a reaction flask. Calc...

A: We have to predict the millimoles of chemical added.  

Q: The pressure that vapors apply on the surface of the liquid at equilibrium is called

A: On the surface of a liquid some of the liquid vapours are present.

Q: Consider a free radical polymerization without chain transfer proceeding by head to tail addition on...

A: Initiators of Radical Chain Polymerization In a perfect world, the initiators ought to be moderately...

Q: Two students, each made four measurements of the mass of an object. Their results are shown in the t...

A: Accuracy : this represent the result how closely to standard Value. Precision : This represent the r...

Q: Complete the table below for calculating the molar mass of the ionic compound copper(II) fluoride. N...

A: Molar mass of ionic compound is sum of molar mass of atoms in one formula unit. 

Q: skeletal structure

A:

Q: molecules

A:

Q: Determine the magnitude and direction of the electric field at a point 0.5 m to the left of a point ...

A:

Q: Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide a...

A:

Q: Acetylene, C2H2, is a gas used in welding. The heat evolved for the combustion of acetylene is –33.7...

A:

Q: Calculate the degree of unsaturation. Assign the relevant peaks in the IR spectrum. Assign the peaks...

A: Answer attached below

Q: B) In the steam di-tillation experiment, a mixture of toluene and water *boils at 85 C. Calculate th...

A:

Q: 16.106 The atmospheric sulfur dioxide (SO,) concentration over a certain region is 0.12 ppm by volum...

A:

Q: Look at the table below: Substance pH Apple Juice 3.37 Apricots, pureed 3.83 Cherries, California 4....

A: pH is defined as negative logarithm of hydrogen ion concentration.

Q: Calculate. 5. What is the pCa of a 50ppm Ca(NO3)2

A:

Q: 29. . Allotropes differ in which of the following properties: A. Electronegativity B. Crystal Stru...

A: According to Bartleby guideline more than one question only one question is attempt 

Q: Consider this reaction: 2C1,0, (g) → 2C1, (g) +50, (g) At a certain temperature it obeys this rate l...

A: here given rate constant (K)=0.383 s-1 general unit of rate constant is (k)=(mol.l-1)1-n S-1   where...

Q: Each row of the table below describes an aqueous solution at about 25°C. Complete the table. That i...

A:

Q: To enter exponential values, use the format 1.0e-5. Solution 1.10 M Acetic acid (mL)| 0.900 M Sodium...

A:

Q: Classify each of the following reactions: A. C2H4 (g) + 302 (g)→2CO2(g)+ 2H2O(g) B. 2H9O(s)→2H|(1) +...

A:

Q: Give the following information for the encircled element in the molecules as shown below 5) |CH3CH2C...

A: a) Nitrogen has 5 valence electrons b) Lewis dot structure of the given is in the handwritten : c) T...

Q: Describe the preparation of the following reagents. 1. 250 mL of a solution that is 0.0376 N Mgl2 fr...

A:

Q: The formula for a Ciprofloxacin otic drop is given in the literature as follows: Cirpofloxacin 1 g P...

A: So, Ciprofloxacin is required = 20 g.

Q: What is the mass of 4.63 x 1012 atoms of Fe? O 8.96 x 10-10 g O 4.29 x 10-10 g O 2.73x 10-10g O 1.62...

A:

Q: The rate of a certain reaction is given by the following rate law: rate =k[NO][0,] Use this informat...

A: Given, The rate law expression for a certain reaction is rate = k[NO]2[O2] From the above expression...

Q: PLEASE HELP DRAW AND WRITE THE REACTION, EQUATIONS AND MECHANISMS FOR THE REACTION OF CYCLOHEXENE WI...

A: Alkene reacts with Br2 in presence of water to give halohydrin. 

Q: C;H100 MW 86 te

A:

Q: er certain conditions the rate of this reaction is zero order in ammonia with a rate constant of 0.0...

A: Rate Constant ,k = 0.0015M/s

Q: Q2. Determine the following for the cobaltocene a. Total number of microstates possible. b. All the ...

A:

Q: Torulene (γ-carotene) made by pea aphids is the only carotenoid known to be synthesized by an organi...

A: Given : molecular formula = C40H54 No.of ring = 1  Triple bond = 0 No. of double bond = ?

Q: What is the mass, in grams, of 1.20 mol of iron (III) sulfate? Express your answer using three signi...

A: Given,  Moles of Iron(III) sulfate = 1.20 mol  Molar mass of Iron(III) sulfate = 399.88 g/mol  

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.