42 Determine the molar mass for the following compounds: a. ethylene, a ripening hormone, C₂H4 b. citric acid, the sour taste found in citrus fruits, C6H₂O7 c. sodium bicarbonate, baking soda, NaHCO3

Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 4.75 g O 63.55 amu O 63.55 g O 7.47 x…

A:

Q: For each of the following compounds, select the correct formula. calcium nitride:  magnesium…

A: Step 1: Step 2:

Q: What is the molecular formula of a compound with the empirical formula NBH4 and a formula mass of…

A: The empirical formula represents the smallest possible whole-number ratio of atoms present in a…

Q: Find the molecular formula of a substance that is 48.20% iron, 10.37% carbon, 41.43% oxygen, and has…

A:

Q: The compound discussed in the above question has a molar mass of around 130 g/mol. What is the…

A: Given :- molar mass of unknown compound = 130 g/mol  To identify :- molecular formula of the…

Q: An experiment requires that enough C,H1206 be used to yield 11.7 g of oxygen. How much C,H1206 must…

A: Given : mass of oxygen, O2 to be yielded = 11.7 g Molar mass of O2 = 32 g/mol Since mass = moles X…

Q: Complete the table below for calculating the molecular weight of the compound dinitrogen monoxide,…

A: molecular weight: Sum of the atomic masses of atoms in a molecule  Formula weight : Sum of the…

Q: Assume that a certain element (let's call it X) has two (and only two) isotopes: 35x (35.0 a.m.u.)…

A: Given data :

Q: Nitric oxide (NO) is produced in internal combustion engines. When NO comes into contact with air,…

A: Law of multiple proportions means the ratio of element X combined with Y in different molecules is…

Q: A compound is made up of 81.71% carbon and 18.28% hydrogen. Determine the empirical formula. O CH O…

A: This question belong to some basic concept of chemistry that is mole concept. We have solved this…

Q: How many hydrogen atoms are in each of the following:   Part A: C2H5OH Express your answer as an…

A: Atom is the smallest unit of a substance. Atoms combine to form a molecule which is a stable entity.…

Q: Answer the following questions based on information contained in the statements you wrote for…

A: so 1mole of CO2 has 2mole of Oxygen atom

Q: A compound, A,S3, contains three S atoms per formula unit and is 43.71% sulfur. What is the atomic…

A: The compound with element A and sulfur is given by the chemical formula - A2S3 There are three 3 S…

Q: How many grams of Ar are there in 4.28 moles of Ar? How many grams of Xe are there in a sample of…

A: (1) Atomic mass of argon gas is = 39.948 u While given moles of argon = 4.28 moles Then, by…

Q: For p'd' electron configuration, deduce the term symbols and determine the number of microstates.

A: Calculation of number of microstates and term symbols.

Q: Succinic acid (below) is an important metabolite in biological energy production. Give the molecular…

A: Simple structure of succinic acid is:

Q: 7. How many atoms of Oxygen are in 5.02 x 10' molecules of caffeine (CHNO.)?

A: Caffeine is an organic compound having molecular formula C8H10N4O2 The tea contains caffeine in it.

Q: which of the following formulas - NO, N2O, NO2, N2O4,  and N2O5 - represent the empirical formula…

A: The empirical formula is the simplest whole number ratio of atoms in a compound, while the molecular…

Q: What is the empirical formula?

A:

Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 747 x 102 amu O 747 x 1029 O 475 g O…

A:

Q: What is the molecular formula of a compound that contains only carbon and hydrogen, is 85.6% carbon,…

A: Given, Compound contains only carbon and hydrogen. Mass percent of carbon = 85.6%. Molar mass of…

Q: 6. On a cold day in Chicago, Zendaya grabbed a hot chocolate to drink. The hot chocolate has 3.062 x…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: Ammonium carbonate has the chemical formula (NH4)2CO3 How many atoms of N, H, C,and O are present in…

A: To solve this problem we have to calculate the number of atoms of each element present in formula…

Q: Sucrose plays a key role in the cake; it helps good incorporation of the air, so creating a more…

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Q: 8. Vanilla ice cream is made with vanillin (C8H8O3), which grams of vanillin in a scoop of vanilla…

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Q: What is the molecular formula of a compound with an empirical formula NO2 which has a molecular mass…

A: We have to find the molecular formula of a compound with an empirical formula NO2 which has a…

Q: F. How many oxygen molecules are in 2.40 g of O2(g)? A: 4.52 x 1022

A: Given : Mass of O2 = 2.40 g

Q: Find the total number of carbon atoms in 32.89 grams of C7H1402

A: Total no. Of carbon atom find below

Q: An allotrope of elemental sulfur is the cyclic molecule S6 . Calculate the number of molecules and…

A: The number of molecules and moles are related to each other by the given relationship as; 1 mole =…

Q: Polyisobutylene is a synthetic elastomer, or rubber. The corresponding monomer is isobutylene, which…

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Q: Of the bonds found in OH CH,—CH—CHCH,-0CH OH CH3 which is the most polar? OC-F O C-H OC-O OO-H

A: 1) we have to select the most polar bond 2) we have to find total number of carbon atoms in the…

Q: Determine the empirical formula of each compound: C2H6, NO2, C6H12O6, C2H4O

A: In empirical formula the ratio of atoms in the compound should be lowest. Since in C2H6 the lowest…

Q: hat is the mass of 4.50 x 1022 Cu atoms? Multiple Choice 747 x 102 g 4.75 g

A: Molar mass Cu is 63.546

Q: The formula for sulfur dioxide is SO2. How many grams of sulfur are present in 1.31 moles of sulfur…

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Q: The recommended daily allowance of the niacin (vitamin B3) is 16 mg per day for man. The molecular…

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Q: How many moles are there in 45.0 g of LiHCO3? (Li= 6.941 g/mol, H= 1.01 g/mol, C= 12.00 g/mol, O=…

A: We have to predict the moles.

Q: how many atoms are in 2Al2(SO4)3?

A: Given that,Compound = Number of atoms = ?

Q: Vitamin B is a covalent compound with the molecular formula C8H11NO3. The recommended daily dietry…

A:

Q: 6. Verify the law of conservation of mass by using relative atomic masses for the following chemical…

A: Given reaction is : BaCl2 + H2SO4 ----------> BaSO4 + 2HCl  Verification of law of conservation…

Q: 6. Determine the empirical formula of C3H . O C3H8 C6H6 O CO.5H2 O CH2.5

A: The molecular formula of a compound tells the number of atoms involved in the formation of a…

Q: 2. How many MOLES of dinitrogen tetroxide are present in 9.71×10² molecules of this compound ?…

A: The given compound = dinitrogen tetroxide = N2O4 Given number of molecules of N2O4 = 9.71×1022

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.