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: 1.736 g of iron ore is dissolved with acid and precipitated as Fe2O3X.H2O. After the precipitate is…

A: The percentage of the Iron in the sample of iron ore can be calculated as:

Q: A student is given a 1.8686 g of an unknown copper compound. Following isolation by displacement by…

A: Given: Mass of Cu = 0.3685 g Mass of compound = 1.8686 g

Q: What is the mass percentage of C in caffeine, C18H10N4O2

A: The mass percentage is calculated by the formula, mass%=mass of elementmass of compound×100

Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg*²). The solution is…

A: Given: Mass of sample = 5.276 g The solution is diluted = 500 mL three 100 mL of solution titrated…

Q: Barium metel was quantitatively precipitaded from 1.52g sample of BaCl2+2H2O. The mass of the barium…

A: Mass percentage = (mass of solute / mass of solution) x 100%

Q: Fluorides of the noble gas xenon can be formed by reaction with fluorine under high temperature and…

A: Details

Q: 1. As(III) can be determined gravimetrically as As2S3. The weight of As2S3 obtained from a 0.5000 g…

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

Q: In the reaction, Cu + 2 AgN03 Cu(NO3), + 2 Ag, the oxidizing agent is OCu Ag O Ag+ OCu2+

A: Oxidizing agent : A chemical species is known as oxidising agent that oxidize other substances and…

Q: A sample of feldspar (feldspars are the most abundant mineral group on Earth) was analysed that…

A: From a sample of feldspar weighing 1.0600 g, a mixture of chlorides of sodium and potassium was…

Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

A:

Q: A local water retention pond was found to have elevated mass concentration of mercury of 14 ng per…

A: Given data: Concentration of mercury = 14 ng/L Volume of water in swimming pool = 1250 m3   Known…

Q: Enter your answer in the provided box. What is the maximum mass of P,I, that can be prepared from…

A: Using mole- mole analysis and mole- mass analysis we have solved this problem.

Q: A student is given a 1.3002 g of an unknown copper compound. Following isolation by displacement by…

A:

Q: Is C6H12O6+ 9O2→ 6CO2+ 6H2O balanced?

A: A balanced chemical equation is that in which all the reactants and products are written with their…

Q: Calculate the mass of tetraborane (B4H₁0) that contains a billion (1.0 x 10°) hydrogen atoms. Be…

A: Given,number of atoms of H = 1.0 x 109 atoms.

Q: 3. Derive the empirical formula for the red solid based on the following composition: Ni, 20.315%;…

A: As per our guidelines, we are supposed to answer only one question. Kindly, repost other question as…

Q: 6) 0.025 MOL OF AN IONIC COMPOUND AlaSp CONTAINS o.05 MOL CATIONS AND 4.5x1022 anions. Given: molar…

A:

Q: Complete and balance the following equations: (a) NaOCH3(8) + H2O(I) (b) CuO(s) + HNO;(aq) (c)…

A: The complete balanced chemical equation for the given reactions are:

Q: In the molecule C6H12O6 are there will be 12 moles of hydrogen per mole of glucose?

A: The molecular formula of glucose = C6H12O6 It is obvious as seems from the molecular…

Q: A mixture containing only BaO and CaO weighs 2.500 g. The oxides are converted to the corresponding…

A:

Q: barium chloride hydrate Mass percentage of H2O in hydrate (%):

A: Mass percentage of H2O  in barium chloride hydrate ( BaCl2.H2O)

Q: The calcium from a sample of limestone weighing 699mg was precipitated as CaC2O4 and ignited to CaO…

A: The ignition of calcium oxalate can be described as follows: CaC2O4  →  CaCO3  + COCaCO3   →  CaO  +…

Q: Determine the formula weights of each of the following compounds: (a) H2S; (b) NiCO3; (c)…

A: For calculating the formula weight, add the molecular mass of all atoms with the no of atoms present…

Q: Starting with the following equation, Fe2O3(s) + C(s) --> Fe(l) + CO2(g) calculate the mass in…

A:

Q: Measurements of the exhaust gases of a hydrogen-fueled engine indicate a composition of 71.0% N2,…

A:

Q: Nitrogen (N), phosphorus (P), and potassium (K) are themain nutrients in plant fertilizers. By…

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

Q: An alloy consists of 240.03 grams of copper and 0.839 kilograms of gold. If the atomic weights of Cu…

A: First calculate the mole of both metal in alloy than for mole percentage of copper  take ratio of…

Q: Strong acid. how it behaves as a strong base. D(i) which of the oxides is amphoteric? ii) Write…

A: Amphoteric oxide is that oxide that react with both acids and base and form salt and water.  3d) i)…

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: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg"). The solution is…

A: Given that -  Mass of sample of alloy, Al-Mg = 5.276 g  Mass of alumina, Al2O3 = 1.444 g  Molar mass…

Q: What is the mass percentage of S in hydrochlorothiazide, C₇H₈ClN₃O₄S₂? Provide an answer to two…

A: The percent mass of S in given compound is determined by using following expression. %S=Molar mass…

Q: It was found that 0.10 g of nitrogen combine with oxygen to produce 0.328 g of the oxide. Determine…

A: In question Following information given -Mass of nitrogen Oxide = 0.328 gMass of nitrogen combined =…

Q: What is the mass percentage of Na in NaNO₃?

A:

Q: (a) What is the mass, in grams, of 4.62  1023 molecules of aspirin, C9H8O4?

A:

Q: Determine the percentage composition of ammonium nitrate, NH 4 N0 3 [ans: b 35.00 % n, 5.05 % h,…

A: Given , Compound : NH4NO3

Q: A student is given a 1.3308 g of an unknown copper compound. Following isolation by displacement by…

A: Given,      Mass of the unknown Copper Compound =1.3308 g      Mass of Copper (Cu) Metal recovered…

Q: If the magnesium strip weighed 0.51 g, what would the theoretical yield (in grams) of H2 gas be?…

A: Given :- mass of Mg strip = 0.51 g  To calculate :- theoretical yield of H2 gas (in grams)

Q: What is the mass percentage of C in codeine, C18H21NO3?

A:

Q: Write the chemical formula for iron(III) chloride hexahydrate

A: Write the chemical formula of the given ---

Q: compound with the molecular formula, AB204. Mass % of oxygen in in the compound is around 45% .…

A: We can solve for x and Q. Let's start with finding the value of x. Once we have x, we can determine…

Q: How do I calculate the number of molecules in 6.00 ml of acetic anhydride, C4H6O3, if the density of…

A: Given : Volume of acetic anhydride = 6 mL Density of acetic anhydride =1.08 g/cm^3 ( 1 mL = 1 cm^3 )…

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.