1. a) Calculate the molar mass of each of the following: (i) N,O, (ii) C,H,OH (iii) MgSO,.7H,O (iv) Ca(C,H,O,), b) Calculate each of the following quantities: ' (i) Total number of ions in 38.1g of SRF2 (ii) Mass (kg) of 3.58 mol of CuCl,.2H,0 (iii) Mass (mg) of 2.88310^22 formula units of Bi(NO,).5H,0

Q: What coefficients would you need to balance the following equation, just put the coefficients in the…

A: • The given unbalanced chemical equation is,            Mg + HCl → MgCl2 + H2

Q: 3. How many grams of oxygen are used in the combustion of 1.9 moles of CH,?

A: Combustion reaction is the reaction between organic compound with Oxygen in the presence of heat to…

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A:

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Q: A dark brown binary compound contains oxygen and ametal. It is 13.38% oxygen by mass. Heating it…

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Q: 2- Calculate the empirical fomula of the compound composed of 38.67 % C, 16.22 % H, and 45.11 %N by…

A: To calculate the empirical formula we have to calculate the number of mole of each elements in the…

Q: In 1987 the first substance to act as a superconductor at a temperature above that of liquid…

A: Mass percent can be calculated using following formula.

Q: 3. In a chemical atomic mass determination, the tin content of 3.7692 g of SnCl, was found to be…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

A: (a) Volume of the gas can be calculated as: Since, 1 gal = 3785.41 mL Therefore, From the Density:

Q: For this question, let's assume that both the number of moles (0.438 mol Co(No3)2 and the mass of…

A: We have to calculate number of moles and mass of solute [ Co(NO3)2 ].

Q: What is a mol of a species of molecular weight M, in terms of (a) a number of molecules?(b) a mass?

A: Given:  What is a mol of a species of molecular weight M, in terms of (a) a number of molecules?(b)…

Q: 3.152 Myoglobin stores oxygen for metabolic processesin muscle. Chemical analysis shows that it…

A: The molar mass of myoglobin has to be determined. Given data contains, Mass percent of Fe is 0.34%.

Q: 2.3 (a) How many grams are there in one amu of a material? (b) Mole, in the context of this book, is…

A: A.M.U is defined as mass of One atom.

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A: The process of formation of SO2during the process is ,4FeS2(s) +11O2(g) →2Fe2O3(s) +8 SO2(g)It is…

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A: Heamoglobin is a protien for oxygen transport . The heam group in Hb is Fe metal. Binding of oxygen…

Q: Caffeine, a stimulant in coffee and tea, a molar mass of 194.19 g/mol and a mass percentage…

A: Given,

Q: Flourine is so reactive that it forms compounds with materials inert to other treatments. When 0.278…

A: Step : 1               Calculate the empirical formula .

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A:

Q: 3.124 What mole ratio of molecular chlorine (Cl2) to molecularoxygen (O2) would result from the…

A: The mole ratio of the reaction has to be given,

Q: Is each of the following statements true or false? Correctany that are false:(a) A mole of one…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What's the percentage by mass of Cl in MgCl2 if it  is 24.6% Mg by mass?

A: Intrdouction : %age by mass of Mg = 24.6%

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A:

Q: 30. The active ingredient in some antiperspirants is aluminum chlorohy- drate, Al₂(OH), Cl. Analysis…

A: Given - mass of sample of antiperspirant= 2.000g             mass of aluminum = 0.334 g

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A: The given data: The % composition of C = 76.7% The % composition of O = 11.1 % The % composition of…

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A: The average mass of person is 160 lb. One pound is equal to 0.4535 kilograms.

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Q: A binary compound between an unknown element E and hy- drogen contains 91.27% E and 8.73% H by mass.…

A: using the molecular formula is E3H8 Given moles of E presents in compound is 3

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A: It is given that N/P/K ratio needs to be calculated and we are provided by the N/P2O5/K2O, mass…

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A: The sample contains the percentage of, C = 40.63 % H = 5.08 % O = 54•28%

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A: a. mass, in grams, of 0.105 mol sucrose (C₁₂H₂₂O₁₁) Given;

Q: (a) One molecule of the antibiotic penicillin G has a massof 5.342 * 10-21 g. What is the molar mass…

A: (a) Given information,     One molecule of the antibiotic penicillin G has a mass of 5.342 * 10-21…

Q: When 1.5173 g of an organic iron compound containingFe, C, H, and O was burned in O₂, 2.838 g of CO₂…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: If 41.2 g of molten iron(II) oxide reacts with of 20.0 g of magnesium, what is the mass of iron…

A:

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A: As per the give reaction 1 mol Ag2O reacts with 2 mol of C10H10N4SO2 to give 2 mol of AgC10H9N4SO2…

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Q: Write The Molecular Fotmula For The Following 1-Copper Sulfate 2-Phospours Pentabromide 3-Calicum…

A: Hello, since your question has multiple parts, we will solve the first question for you. If you want…

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Q: A compound M2O3 is 30.06% oxygen, where M is an unknown metal. The molar mass of M2O3 is?

A:

Q: 47. Calculate the molar mass of the following substances. a. H. b. H c. (NH,),Cr,O,

A: Atomic mass of an atom is the total number of protons present in that atom. While the sum of atomic…

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: GivenMass of hydrated salt = 34.8243gMass of anhydrous salt = 27.0351gMass of water lost = 7.7892g

Q: 9. How many kilograms of iron can be obtained from 635 pounds of an ore that is 72.0% hematite,…

A:

Q: 3. What mass of KIO, is needed to convert the copper in 0.2750 g of CuSO, 5H,0 to Cu(IO,),?

A: First, write out the chemical equation. 2KIO3 +CuSO4.5H2O  ----> K2SO4 +5H2O+Cu(IO3)2

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Q: Ammonium phosphate ((NH,), PO, is an important ingredlent in many fertilizers. It can be made by…

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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.