Answered: The molar mass of iron is : M(Fe)=56…

The molar mass of iron is : M(Fe)=56 g.mol^ -1 a) Calculate the number of atoms present in 0.28g of iron. b) What mass of iron corresponds to 0.18 mol of iron ?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter4: Calculations Used In Analytical Chemistry

Section: Chapter Questions

Problem 4.13QAP

See similar textbooks

Related questions

Q: A three-step process for producing molten iron metal from Fe2O3 is: 3Fe2O3 + CO → 2Fe3O4 + CO2…

A: Since CO is present in excess, Fe2O3 is the limiting reagent in the first step. Given mass of Fe2O3…

Q: A three-step process for producing molten iron metal from Fe2O3 is: 3Fe2O3 + CO → 2Fe3O4 + CO2…

A: Given,The three-step process for producing molten iron metal from Fe2O3 is:3 Fe2O3 + CO → 2 Fe3O4 +…

Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: Given; density of water at 4.00Co=0.967 g/mL present volume of water we have=499.8 mL moles of water…

Q: Find the coefficients necessary to balance the following chemical equation: x,Cr,O¯ + »Fe*+ xH* xCr*…

A: The unbalanced redox reaction given is, x1 Cr2O72- + x2 Fe2+ + x3 H+ → x4 Cr3+ + x5 Fe3+ + x6 H2O…

Q: The fuel tank of an automobile contains 62.0 kg of gasoline. If the gasoline reacts completely with…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: Aspirin can be prepared from salicylic acid (C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

Q: What gravimetric factor is required to calculate the weight of sulfur trioxide, SO3 (MM = 80.064…

A: We have to tell What gravimetric factor is required to calculate the weight of sulfur trioxide

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

Q: Aspirin can be prepared from salicylic acid ( C7H6O3), which has a molar mass of 138.12 g/mol, and…

Q: 1. The first thing you've been tasked to do is to create the antacid through chemical reaction and…

Q: molar weight

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

Q: Be sure to answer all parts. Fermentation is a complex chemical process of wine making in which…

Q: A 12.3 g sample of a compound known to consist of only carbon and hydrogen was found to be 14.40 %…

A: Mass of sample = 12.3 g Hydrogen percent by mass = 14.40 % Mass % = Mass of solutemass of…

Q: Ibuprofen, the anti-inflammatory drug in Advil, has the formula C13H18O2 What is the empirical…

A: Ibuprofen is an anti-inflammatory drug

Q: 32.854 cm³ of solid magnesium reacts with 7.42760 x 1023 carbon dioxide gas molecules, to make solid…

A: Volume of Mg = 32.854 cm3 Number of molecules of CO2 = 7.42760 × 1023 molecule

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO2 and H2O. When…

Q: The empirical formula of a compound is X5Y7Q by mass and the molecular formula weighs 162.1 g/mol.

A: Let us the consider the actual molecular formula as (X5Y7Q)n. Then,n x ( 12.01*5 + 16*7 + 14.01) =…

Q: A. Mass of crucible: 12.214 g B. Mass of crucible and hydrate: 13.250 g C. Mass of crucible and…

A: Given, Salt : CuSO4

Q: Please answer questions 3a and 3b. Questions are provided in the attached image. Thank you.

A: Gravimetric analysis is a quantitative method through we can accurately determine the amount of…

Q: WHY IS IT THAT IN MOST CASES, THE AMOUNTS OF REACTANTS AND PRODUCTS ARE INDICATED IN GRAMS INSTEAD…

A: In the field of chemistry, the reactions are carried out by using certain reactants to produce the…

Q: A compound is 54.53% carbon, 9.15% hydrogen, and 36.32% oxygen by mass. What is its empirical…

A: This question belongs to Mole concept. we have used formula Mass % of an element = Mass of that…

Q: Consider the chemical reaction aC,H6 + 6CO2 + CH2O → ¿C2H;OH, where a, b, c, and d are unknown…

A: To balance the Chemical Reaction.,

Q: 3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation how many grams of water can be made…

Q: The following data was obtained in an experiment to determine the water content in sodium alum, [Na…

Q: Nitroglycerin (C3H;N3O9) is a powerful explosive. Its decomposition may be represented by 4C3H3N309…

A: a) Given,

Q: The molar mass of one empirical unit of the antidepressant rolicyprine (C7H&NO) is 122.1 g/empirical…

Q: Be sure to answer all parts. Fermentation is a complex chemical process of wine making in which…

Q: 3. A student heated an unknown hydrate, Na,SO4 XH,0, in a crucible. The water was driven off,…

A: Mass of water loss = 0.895 g mass of anhydrous salt = 0.695 g MW of anhydrous salt = 142.04 g/mol…

Q: Toluene has a density of 867 kg/m³ and its molar mass is 92.14 g/mol. If 100 mL of Toluene is…

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

Q: A sample of unknown hydrate, AC·XH2O, has a mass of 1.000 g before heating and a mass of 0.781 g…

Q: Aspirin can be prepared from salicylic acid (C7H603), which has a molar mass of 138.12 g/mol, and…

A: First of all we calculate the mass of Acetic anhydride using Following relationship - Density =…

Q: The following quantities are placed in a container: 1.5 × 1024 atoms of hydrogen, 1.0 mol of sulfur,…

A: Since we only answer up to the first 3 subparts, we will answer the first three only. Please…

Q: What is the formula (solve for x) for the original hydrated sample of copper (II) sulphate? You…

Q: In the recipe for mayonnaise, the phospholipids in the egg yolk act as emulsifiers. If you assume…

A: Given that : Weight of one egg yolk = 10 g 33% of egg yolk is fat, so, 33% of 10 g = 3.3 grams

Q: Be sure to answer all parts. Fermentation is a complex chemical process of wine making in which…

A: Intial Mass of glucose taking part in reaction =926.1 g Density of ethanol = 0.789g/ml Chemical…

Q: Methanol can be formed by the following UNBALANCED equation below. What is the mass in grams of…

A: Balanced chemical equation 2H2(g) + Co(g) = CH3OH(l)

Q: The acid–base reaction between phosphoric acid, H3PO4, and calcium hydroxide, Ca(OH)2, yields water…

A: In the balance reaction, phosphoric acid, H3PO4, a weak acid, reacts calcium hydroxide, Ca(OH)2 to…

Q: Combustion of hydrocarbons such as nonane (C,H20) produces carbon dioxide, a "greenhouse gas."…

A: When a hydrocarbon reacts with oxygen then, it will form carbon dioxide and water and liberate huge…

Q: A 55-kg woman has 0.0085 mol of hemoglobin (molar mass = 64,456 g/mol) in her blood.…

A: The moles of hemoglobin present in the blood of 55-kg is 0.0085. We know that the moles of…

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

A: Given that :- saturated carboxylic acids has the general formula CnH2n+1COOH Atomic weights:- 1) C…

Q: Table salt, NaCl(s), and sugar, C,,H„0(s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Balanced Combustion reaction of sugar: C12H22O11 + 12O2 .....> 12CO2 + 11H2O Mass of sample =…

Q: If the gasoline reacts completely with excess oxygen (from the air) to form CO2 and H2O, what is the…

A: Given :- mass of gasoline = 62.0 kg To be calculated :- Mass of CO2 Mass of H2O

Q: The molar mass of ibuprofen is 206.3 g mol-1 and a standard tablet contains 0.2 g ibuprofen. What…

A: Given that : The molar mass of ibuprofen = 206.3 g/mol The mass of ibuprofen in a tablet = 0.2 g

Q: One molecule of a compound weighs 2.93 x 10-22 g. The molar mass of this compound is:

A: 1 mole = 6.0224 × 1023 molecules Molar mass = 6.0224 × 1023 × Molecular mass

Q: Combustion of hydrocarbons such as methane (CH) produces carbon dioxide, a "greenhouse gas."…

A: A chemically balanced equation has equal number of atoms of each elements in the reactant side and…

Q: When ammonia is mixed with hydrogen chloride (HCl), the white solid ammonium chloride (NH4Cl) is…

A: Given: The mass of ammonia is 10 g. The balanced chemical reaction is, Find the limiting reagent of…

Q: Manufacturers of headache remedies routinely claim that their own brands are more potent pain…

Q: A high-performance heater that burns propane, C3H8(g), is adjusted so that 100.0 g of O2(g) enters…

A: The number of moles of oxygen (O2) present (nO) in 100.0 g of oxygen gas is calculated using…

Q: 25.If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given data Moles of substance = 0.274 mol weight of substance = 62.5 g find out the molar mass of…

Question

The molar mass of iron is : M(Fe)=56 g.mol^ -1 a) Calculate the number of atoms present in 0.28g of iron. b) What mass of iron corresponds to 0.18 mol of iron ?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1 given

VIEW

Step 2 Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Given that the molar mass of carbon tetrachloride, CCl4 , is 153 g, calculate the mass in grams of 1 molecule of CCl4 .
3.115 The average person exhales 1.0 kg of carbon dioxide in a day. Describe how you would estimate the number of CO2 molecules exhaled per breath for this average person.
3.105 Nitric acid is often sold and transported as a concentrated 16 M aqueous solution. How many gallons of such a solution would be needed to contain the roughly 2.1109 pounds of HNO3 produced annually in the United States?
Fig. 5-5 illustrates a schematic diagram of a combustion device used to analyze organic compounds. Given that a certain amount of a compound containing carbon, hydrogen, and oxygen is combusted in this device, explain how the data relating to the mass of CO2 produced and the mass of H2O produced can be manipulated to determine the empirical formula.
4.69 The pictures below show a molecular-scale view of a chemical reaction between H2 and CO to produce methanol, CH3OH. The box on the left represents the reactants at the instant of mixing, and the box on the right shows what is left once the reaction has gone to completion. Was there a limiting reactant in this reaction? If so, what was it? Write a balanced chemical equation for this reaction. As usual, your equation should use the smallest possible whole number coefficients for all substances.
The chemical formula for diethyl ether is: (CH;CH;),O Calculate the molar mass of diethyl ether. Round your answer to 2 decimal places. |g mol x10
4NH;(g) + 502(g) 4NO(g) + 6H20(g) When 8.7 moles of ammonia reacts, determine the mass of water produced. Enter g for unit.
Hemoglobin is the oxygen carrying compound found in human blood. It is found to contain 0.3335% iron by mass. It is already known that one molecule of hemoglobin contains four atoms of iron. What is the molecular mass of hemoglobin in g/mol?
Nitroglycerin (C3H;N3O9) is a powerful explosive. Its decomposition may be represented by 4C3H;N309 – 6N2 + 12CO, + 10H,0 +O2 This reaction generates a large amount of heat and gaseous products. It is the sudden formation of these gases, together with their rapid expansion, that produces the explosion. (a) What is the maximum amount of O, in grams that can be obtained from 2.00 x 10° g of nitroglycerin? (b) Calculate the percent yield in this reaction if the amount of O2 generated is found to be 6.51 g.
Cinnamic alcohol is used mainly in perfumery, particularly in soaps and cosmetics. Its molecular formula is C9H10O. (a) Calculate the percent composition by mass of C, H, and O in cinnamic alcohol. H % (b) How many molecules of cinnamic alcohol are contained in a 0.668-g sample? |× 10 molecules (Enter your answer in scientific notation)
The chemical formula for diethyl amine is: (CH;CH,),NH Calculate the molar mass of diethyl amine. Round your answer to 2 decimal places. 1 |g mol x10
In 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a national record at that time. (a) Assuming that the coal was 83% carbon and 2.5% sulfur and that combustion was complete, calculate thea number of tons of carbon dioxide and sulfur dioxide produced by the plant during the year.