Ibuprofen, the anti-inflammatory drug in Advil, has the formula C13H18O2 What is the empirical formula of ibuprofen? Express your answer as a chemical formula. What is the molar mass of ibuprofen? Express your answers to four significant figures and include the appropriate units. How many grams of C are in 0.465 g of ibuprofen? Express your answer using three significant figures and include the appropriate units. How many moles of ibuprofen are in 2.35 g of ibuprofen? Express your answer using three significant figures and include the appropriate units.

Q: How many molecules of sulfuric acid are in 5.00 g of sulfuric acid? Write your answer with the…

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Q: O CHEMICAL REACTIONS Using a chemical equation to find moles of product from moles. Ammonium…

A: Reaction of phosphoric acid with Ammonia  H3PO4(aq) + 3NH3(l) .....> (NH4)3PO4(aq)  Moles of…

Q: What is the mass, in grams, of 1.20 mol of iron (III) sulfate? Express your answer using three…

A: Given,  Moles of Iron(III) sulfate = 1.20 mol  Molar mass of Iron(III) sulfate = 399.88 g/mol

Q: Aspartame is an artificial sweetener that is 160 times sweeter than a(table sugar) when dissolved in…

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Q: Number of molecules in 2×10−6 mol CH3CH2OHCH3CH2OH. Express your answer using four significant…

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Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: Chemical reaction- It consists of reactant (starting material) and products (substances formed in…

Q: Calculate the mass in grams of each of the following. Part A.    1.88x1024 atoms of krypton, Kr.…

A:

Q: Using the average atomic masses given inside the front cover of this book,calculate the indicated…

A: Molar mass of iron(Fe) is 55.85 g/mol

Q: In the Dumas Method for the determination of the molar mass of an unknown vapor, the weight of the…

A: Given,  Weight of the flask filled with water = 378.56 g  Weight of the water = 252.68 g  Density of…

Q: The chemical formula for urea is: (NH,),CO Calculate the molar mass of urea. Round your answer to 2…

A: Molar mass of a compund is defined as a mass of a sample of a that compund divided by the amount of…

Q: Ammonium phosphate ((NH,), PO4) is an important ingredient in many solid fertilizers. It can be made…

A: Given: Moles of (NH4)3PO4 produced = 1.80 mol.

Q: Calculate the mass of NaCl formed

A: HCl + NaOH ---> H2O + NaCl Number of moles = mass/molar mass

Q: What is the maximum mass of pure silver that could be extracted from 180. g of argentite, a silver…

A: Given: Mass of Argentite (Ag2S) = 180.0 g Molar mass of Argentite (Ag2S) = 247.80 g/mol Molar mass…

Q: Green plants use light from the Sun to drive photosynthesis, a chemical reaction in which liquid…

A: Mole ratio - Is the ratio between amount in moles of any two compound involved in a chemical…

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Welcome to bartleby ! We have to calculate excess weight of HBr

Q: 1. A compound that contains only carbon, hydrogen, and oxygen is 40.54% C and 5.44% H by mass. What…

A: “Since there are multiple questions in this question and it is not mentioned that which one has to…

Q: The chemical formula for diethyl amine is: (CH,CH,),NH Calculate the molar mass of diethyl amine.…

A: To calculate the molar mass of diethylamine.

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

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Q: What is the mass of NaBr in the mixture? Express your answer using two significant figures. A…

A: Total mass .of Cl and Br is equal to 2.08-0.76=1.32g.

Q: A chemist needs 32.0 g of phenol, C6H5OH, for an experiment. How many moles of phenol is this?…

A: Given, Mass of phenol (C6H5OH) = 32.0 g Moles of phenol (C6H5OH) = ? Note: Atomic mass of Carbon (C)…

Q: Urea, chemical formula (NH,)½CO, is used for fertilizer and many other things. Calculate the number…

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Q: What is the mass, in grams, of 7.30×1020 molecules of caffeine, C8H10N4O2? Express your answer using…

A: Welcome to bartleby !

Q: A website promoting the use of alternative energy vehicles and hybrid technologies claims that, "A…

A: Since you have posted multiple questions, we will solve first one for you. To get remaining solved…

Q: grams are in 2.71 x1024 molecules of S8?

A: Given: To find the grams in 2.71×1024 molecules of S8

Q: What is the mass, in grams, of each of the following?

A: Number of moles = mass/molar mass  So, Mass = moles × molar mass

Q: Aqueous hydrochloric acid (HC1) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: Given data, mass of NaCl produced= ? , molar mass= 58.45 g mol-1  mass of HCl=0.73 g, molar mass of…

Q: How

A: moles of water = ( molecules of water ) / ( Avogadro number )  Where :  Molecules of water is 2.0 •…

Q: Determine the volume of hexane (C,H14) in liters that contains 6.53 x 1025 molecules of hexane. The…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: MgNH4PO4•6H2O loses H2O in a stepwise fashion as it is heated. Above 100 degrees celsius, the…

A: Hydrated magnesium ammonium phosphate (MgNH4PO4.6H2O) is heated over 100˚C  and converted into the…

Q: Liquid octane (CH3(CH2)6CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide…

A:

Q: Liquid hexane  CH3CH24CH3  will react with gaseous oxygen  O2  to produce gaseous carbon dioxide…

A: Given, Mass of hexane = 2.29g Molar mass of hexane = 86.18g/mol mass of oxygen = 17.0g Molar mass of…

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

A:

Q: Iron pyrite, commonly known as "fool's gold," is 46.5% Fe and 53.5% S. Part A. If the empirical…

A:

Q: What is the mass in grams of 7.73x10^24 molecules of CO2? Please express in decimal form How many…

A: Molecules of CO2 = 7.73 x 1024  Mass of CO2 = ?

Q: How many grams are in 2.85 x 10^23 molecules of CO2?

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Q: Ammonia NH3 chemically reacts with oxygen gas O2 to produce nitric oxide NO and water H2O. What mass…

A: Ammonia NH3 chemically reacts with oxygen gas O2 to produce nitric oxide NO and water H2O. The…

Q: When answering this problem, report the answer with the appropriate number of significant figures.…

A: Given: Volume of acetic anhydride = 4.85 mL Density of acetic anhydride = 1.081 g/mL Molar mass of…

Q: Seoyeon needs to determine the formula of an unknown hydrate (AB-XH2O). Given the following data:…

A: Given: Hydrated salt AB.xH2O

Q: CHEMICAL REACTIONS Calculating and using the molar mass of diatomic elements A chemist measures the…

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Q: what mass of anhydrous magnesium sulfate will remain?

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Q: A student uses a variety of techniques to separate four different compounds from 2.03 g of a…

A: Initial mass of the mixture was = 2.03 g     Mass of naphthalene recovered = 0.430 Mass of NaCl…

Q: What is the volume (in mL) of isopropanol that contains 7.23 × 1022 molecules of isopropanol? The…

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Q: The great French chemist Antoine Lavoisier discovered the law of conservation of mass in part by…

A: Answer: Ideal gas equation is shown below: PV=nRT Here: P=pressure of the gasV=volume of the…

Q: Convert to Moles  2.03X1022 atoms of lithium, Li 1.75 X1025 Formula Units of Sodium Chloride, NaCl…

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Q: I am having a bit of trouble with significant figures and rounding. In a question such as the one…

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Q: Benzene, C6H6, is an important solvent and intermediate chemical in many chemical reactions. It is…

A: According to the mole concept, one mole of any substance related as - (1) 1 mole of the Substance =…

Q: Mass (in grams) of 1.00×10−2 molof CdS. Express the mass in grams to three significant digits.…

A: The mass in grams is calculated for CdS as shown,

Q: A chemist needs 32.0 g of phenol, C6H5OH, for an experiment. How many moles of phenol is this?…

A: Number of mols =Weight in g molecular weight in g/mol Molecular weight is the sum of the atomic…

Q: Avogadro’s number is so large that the only way to visualize it is through analogies. For example,…

A: Given : Entire volume of US = 6.9 X 109 Km3  And volume of one orange = 1.4 X 10-14 Km3  Since the…

Q: Ammonium phosphate ((NH4),PO4) is an important ingredient in many fertilizers. It can be made by…

A: 1- First calculate the moles of Phosphoric acid : Molar mass of Phosphoric acid = 98gmol-1  Moles =…

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.