Chemical analysis shows that the oxygen-carryingprotein hemoglobin is 0.34 percent Fe by mass. What isthe minimum possible molar mass of hemoglobin? Theactual molar mass of hemoglobin is about 65,000 g.How would you account for the discrepancy betweenyour minimum value and the experimental value?

Q: Acompoundusedasanadditiveforgasolinetohelpengineblockshowsthefollowingpercentagecomposition:…

A: Empirical formula of a compound is expressed by the minimum number of ratio of atoms present in a…

Q: The lanthanide elements react with oxygen to give compounds of the type Ln2O3 (where Ln stands for a…

A: Empirical formula :- The simplest formula which shows only the relative number of atoms of different…

Q: (a) In the certain hydrated salt MSO3-4H20, the mass percentage of H2O is 44.71%. Identify the…

A:

Q: A tube of Thothpaste contains 0.76 g of sodium monofluorphosphate (Na2PO3F) in 100 mL. a)what mass…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: If all 6.0 x 105 g of carbon (C) is present as C106H263O130N16P, how many moles of C106H263O130N16P…

A: Given :  Mass of carbon present per square kilometre of ocean  = 6.0 x 105 gm  Molar mass of…

Q: 3.135 A certain metal M forms a bromide containing 53.79percent Br by mass. What is the chemical…

A: Let the mass of the compound be 100 g. Then the mass of the Br is 53.79. Calculate the mass of the…

Q: Achemeal analysis of compound Calan Oa upot 125o alycn y the commpand Showsh made the mass Cales 100…

A: Given that, a chemical compound has molecular formula CnH2nO2  Percentage mass of oxygen in compound…

Q: a. Complete the following chemical equation by counting the number of atoms of each element in each…

A: First we will complete the reaction and then balance it.

Q: the atomic masses of 10B and 11 B are 10.012938 and 11.009305 amu, respectfully. The average atomic…

A:

Q: A binary compound of nickel and oxygen contains 78.06% nickel by mass. Is this a stoichiometric or a…

A: Given information: A binary compound of nickel and oxygen contains 78.06% nickel by mass. Let mass…

Q: Tetracarbon dioxide is an unstable oxide of carbon with thefollowing molecular structure:What are…

A: The name of the compound given is tetracarbon dioxide. And the structure of the compound is given as…

Q: The total weight of a mixture containing CaO and BaO is 0.6411 g, and the weight of anhydrous…

A: The total weight of CaO and BaO is 0.6411 g. The total weight of anhydrous sulphate salts obtained…

Q: How many atoms of titanium are there in  0.570 mole of each of the following? ( In Ti atoms)   a.…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Dolomite is a carbonate of magnesium and calcium. Analysis shows that 7.81 g of dolomite contains…

A: The given data contains, mass of dolomite = 7.81 g. mass of calcium = 1.70 g

Q: The density of solid Cr is 7.15 g/cm3. How many atoms are present per cubic centemeter of Cr?

A: Mass = Volume x density Number of moles = Mass/molar mass Number of molecules = 6.0224 x 1023 x…

Q: Imagine you mix 16.05 g of methane (CH4) gas and 96.00 g ofoxygen (O2) gas and then ignite the…

A: First order reaction is a reaction that proceeds at a rate that depends linearly on only one…

Q: (a) In the certain hydrated salt MSO3-4H20, the mass percentage of H20 is 44.71%. Identify the…

A:

Q: B. How many moles of manganomanganic oxide will react with 5.33 x 1025 atoms of aluminum?

A: The balanced Chemical equation given - 3Mn3O4 + 8Al -----> 4Al2O3 + 9Mn   One mole of aluminum =…

Q: Samples of illicit “street” drugs often contain an inactivecomponent, such as ascorbic acid (vitamin…

A: A chemical species formed from a certain atom, which cannot be divided into further small particles…

Q: In mammals, lactose (milk sugar) is metabolized to glucose (C6H12O6), the key nutrient for…

A: Given :  Calculate the mass percent of C in glucose

Q: Calculate the mass percent composi - tion of oxyaen in AizCS04)s, in Šignificant figures.

A:

Q: The molar mass of caffeine is 194.19 g. Is the molecularformula of caffeine C4H5N2O or C8H10N4O2?

A: Caffeine is a natural stimulant most commonly found in tea, coffee and cacao plants. It works by…

Q: 1. The number of ammonia (NH3) molecules present in 4.85 grams of NH3 is: 2.…

A:

Q: When iridium-192 is used to treat cancer, a small cylindrical piece of 192Ir, a 0.6 mm in diameter…

A: Given,

Q: h for dellivery from the supplier? Assume that the atomic mass of Ca is 47.0 u.

A:

Q: The effectiveness of a nitrogen fertilizer is determinedmainly by its mass % N. Rank the following…

A: 1. potassium nitrate Molar mass of KNO3 = 39.10 + 14.01 + (3×16) = 101.11 Mass of nitrogen = 14.01…

Q: react.on eceuS when 12,0 grans of Silver iterle CAgNO)ed with 5.35 grams nf sedium chiæde (Na C)in…

A: The law of conservation of mass states that mass can neither be created, nor it can be destroyed. It…

Q: How many grams of K2C2O4, potassium oxalate, would containe 182 grams of pure potassium?

A: The molar mass of potassium oxalate can be calculated as:

Q: Iculate the percent composition by mass of the following compounds that are important starting…

A: We have to determine the mass percent of each element in the given compound.

Q: Please answer questions 4a, 4b, and 4c. The questions are provided in the attached image. Thank you.

A: (a) The equation of dehydration of the given hydrated salt is given below.

Q: Calculate the Molar mass of the following: 1. C14H29NO4S ( Penicillin – an antibiotic)     2.…

A: The molar mass or molecular weight of any compound is the sum of the mass of each element present in…

Q: Calculate (to the nearest 0.1 u) the formula mass of these compounds. (a) acetaminophen, C8H9NO2…

A: Formula mass is the sum of all the atomic masses present in that compound. Atomic masses: C = 12 u N…

Q: A 100 mg sample of Epsomite (MgSO4·7H2O) was heated in a crucible. After cooling to room…

A: It is given that:Mass of Epsomite (MgSO4.7H2O) = 100 mgMass of anhydrous salt (MgSO4) = 49 mg

Q: The molecular formula of allicin, the compound responsiblefor the characteristic smell of garlic, is…

A: The molecular formula of allicin is C6H10OS2. The molar mass of allicin is calculated as,

Q: Calculate the mass percent of H in C,HgO.

A: Since, molar mass of carbon = 12.0107 g/mol Molar mass of hydrogen = 1.0079 g/mol Molar mass of…

Q: Calculate the mass of sodium aurothiomalate (CH.AuNaO4S) that contains 100 g of go

A: we are given 100 gram of gold in C4H4AuNaO4S  we need to find the mass of C4H4AuNaO4S

Q: Calculate the molar mass of each of the following:(a) the anesthetic halothane, C2HBrClF3(b) the…

A: molar mass of a substance is the mass of the substance in1 mole .

Q: What is the mass percentage of O in C3H,O,?

A: The mass percentage of an element is a one of the way to express the amount of element in the…

Q: Calculate the mass percent of 0 in ClO,F.

A: Given compound is ClO3F  Molar mass of Cl = 35.5 g/mol  Molar mass of O = 16 g/mol  Molar mass of F…

Q: The percent by mass of nitrogen for a compound is found to be 30.5%. Which of the following could be…

A: Percentage by mass of element in a compound  = Mass of element  × 100 / Mass of compound

Q: Why can't the empirical formula for diphenyl ether be simplified any futhur?   Shouldn't it be…

A: No it won't be C6H5O

Q: Can the relative amounts of the components of a mixture vary?Can the relative amounts of the…

A: The compound consists of chemically bounded components. While forming a bond there is a fixed ratio…

Q: Calculate the percentage by mass of the indicated element inthe following compounds: (a) carbon in…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: The koala dines exclusively on eucalyptus leaves. Its digestivesystem detoxifies the eucalyptus oil,…

A: Empirical formula- The formula of compound which represent simplest whole number ratio of elements…

Q: The percent by mass of nitrogen for a compound is found to be 30.5%, Which of the following could be…

A:

Q: galena a mineral of lead is a compound of the metal with sulfer. Analysis shows that a 17.74 g…

A:

Q: An engineer has filed for a patent for a brand new allot to be used in golf club heads. The…

A:

Q: Calculate (to the nearest 0.1u) the formula mass of these compounds: glucose, C6H12O6 sucrose,…

A: The formula mass of any compound is given as the sum of the atomic masses of the constituent atoms…

Q: 1. A sample containing only CaCO3 (100.0869) and MgCO3 (84.3139) was ignited and carbonates…

A: Molar mass of CaCO3 = 100.0869 g/mol Molar mass of MgCO3 = 84.3139 g/mol Molar mass of CaO = 56.0774…

Q: Calculate the number of moles in 6.85x1015 atoms of 3H.

A: It is known that one mole of a substance contains 6.022 × 1023 particles (atoms, molecules or…

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.