A student calculated the number of moles of carbon dioxide present in a 100.0 g sample of a gaseous mixture. If the studer determined that there is 0.30 mole of carbon dioxide present in the sample, what is the percent composition of carbon dioxide in the sample?

Q: Determine the number of oxygen atoms present in25.0 g of carbon dioxide.

A: From given data  Mass of carbon dioxide (CO2) = 25 g  Also,  Molar mass of carbon dioxide = 44…

Q: What is the number of moles of hydrogen gas in the sample

A: The number of moles of hydrogen gas can be calculated by the ideal gas equation which is given by…

Q: An average sample of coal contains 3.0% sulfur by mass. Calculate the moles of sulfur present in…

A: Given : Mass of coal = 2.4 X 103 Kg  And mass % of sulfur = 3.0 % Since 1 Kg = 1000 g Hence mass of…

Q: A mixture is made up of 4 molecules of CH3CH2  CH2OH and 5 formula units of Pb3(PO4)4 * 6H2O. Why…

A: A molecule is composed of two or more elements that are covalently bonded.It is the smallest…

Q: Calculate the number of (a)nitrogen molecules (N2 molecules) (b)nitrogen atoms(N atoms) in 0.111g of…

A: Since 0.111 g of nitrogen gas will have moles = mass/molar mass molar mass of N2 = 28 g/mol Hence…

Q: 1.51x1022 atoms of iron, Fe.

A: 1 mol contains atoms or molecules equal to the Avagadro's number.  Avagadro's number = 6.022 × 1023…

Q: Mg(s) + 2 HCl(aq) −−−→ MgCl2aq) + H2(g)   given that the mass of magnesium is 0.030 g, find the…

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Q: How many molecules are in one drop of water if 1.00 g of water contains 3.34 × 10 ²² molecules?…

A: 1 gm is equal to 1 mL. Given 1mL=20 drops.

Q: inside the front cover of this book to calculate the mass in grams of each of the following samples.…

A: Note : As per our guidelines we are supposed to answer only first 3 subparts of first question.

Q: Calculate the number of (a) nitrogen molecules (N2 molecules) and (b) nitrogen atoms (N atoms) in…

A: From given data  Mass of N2= 0.111g  Also molar mass of N2= 28 molar mass of N = 14  Formula used…

Q: What mass of ammonia gas (NH3) contains 2.8*10^24 hydrogen atoms?

A:

Q: A sample of hydrogen sulfide, H2S, has a mass of 56.75 g. Calculate the number of hydrogen sulfide…

A: Number of molecules can be calculated by using following formulaNumber of molecules = moles ×…

Q: A beaker contains 48.948.9 mL of carbon tetrachloride (CCl4CCl4, density is 1.591.59 g/mL).…

A: Volume of carbon tetrachloride = 48.9 mL  Density = 1.59 g/mL  Density = mass ÷ volume

Q: A certain organic compound has the formula C9H11O2.  A sample of this compound weighs 85.88 grams.…

A: The formula of the given organic compound is C9H11O2.  Mass of the compound=85.88 grams. The molar…

Q: 4. Calculate the mass of 2.5 x 10^23 formula units of magnesium phosphate. 5. Calculate the number…

A: [4.] 1 mole of Mg3(PO4)2 contains 6.022 × 1023 molecules. So,  2.5 × 1023 molecules will contains  =…

Q: Write the chemical formula, and then calculate the number of molecules in 1.00 g of lithium…

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Q: How many moles are represented by 3.65x10^34 molecules of water?

A: Given: molecules of water = 3.65×1034

Q: 4.39 x 10^27 P4 O10 molecules = Atoms

A:

Q: Which law would you use to compare CO and CO2 ? Explain. Without doing any calculations, determine…

A: There are three laws of chemical combinations, which are: 1. Law of conservation of mass 2. Law of…

Q: In order to convert between the number of molecules of a compound and the number of molecules…

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Q: A sample of propane, C3H8, contains 13.8 molesmoles of carbon atoms. How many total moles of atoms…

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Q: How many moles are in 9.26 x 1023 molecules of NH3 ? Do not put units in your answer. Do use proper…

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Q: Convert 1.5 x 1023 molecules SO2 to moles.

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Q: 4.00 g sample of a compound was analyzed and found to contain 1.54 g of silicon and the rest was…

A: The simplest formula of compound , which represent lowest whole number ratio of elements present in…

Q: 1. What do you call to the unit amount of a substance used for measuring large quantities of very…

A: Given:  unit amount of  substance used for measuring large quantities of very small entities such as…

Q: How many chlorine molecules are contained in a 151.34 g sample of chlorine?

A: To know the number of molecules, first we have to know the number of moles. Moles = Given mass /…

Q: the mass, in grams,

A: Given information: molecules of methanol (CH3OH) = 9.01×1024 Mole is the amount of the substance…

Q: Analysis of a sample showed that it contained 68.3% lead, 10.6% sulfur, and 21.1% oxygen. What is…

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Q: Please express and answer the following ASAP General CHEMISTRY 1. Determine the percentage by mass…

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Q: Calculate the mass of 0.5 mole of Oxygen gas

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. n=mM…

Q: calculate the number of (a) nitrogen molecules and (b) nitrogen atoms in 0.111 g of nitrogen gas

A: In one of any atom we have Avogadro number of of atoms. In one of any molecule we have Avogadro…

Q: A sample of a compound has a mass of 41.13 g. The sample is found to contain 37.28 g of carbon and…

A: The mass of the sample compound is = 41.13 g The mass of carbon in this sample is = 37.28 g The mass…

Q: 1.75 x 1023 atoms Pb converted to grams

A:

Q: The number of particles in 1 mole is called ? b) The value of the mole is equal to the number of…

A: No of particles = mole × avagadro number.   Mass = molar mass × mole.

Q: A 1.30 g sample of titanium chemically combines with chlorine gas to form 5.16 g of titanium…

A:

Q: Sucrose has the molecular formula C12H22O11. If a sucrose sample contains 3.6 x 1024 atoms of…

A: Given,  Molecular formula of the sucrose = C12H22O11  Number of atoms of carbon = 3.6 x 1024 atoms…

Q: Calculate the number of moles of cobalt, Co, if you begin with 7.36 × 1023 atoms of cobalt.

A: One mole of any substance has 6.023x1023 atoms/molecules/ions. Mathematically :

Q: Determine the number of moles in  8.50 x 10^24 molecules N2

A: Given :- number of molecules of N2 = 8.50 × 1024 molecules  To calculate :-  number of moles of N2

Q: Calculate the number of (a) nitrogen molecules (N 2 molecules) and (b) nitrogen atoms (N atoms) in…

A: Use formulas Mole=mass÷molar mass Total molecule=mole×6×1022 Total Atoms=atomicity×molecule…

Q: Chromium metal is obtained by heating chromium(111) oxide with carbon.Calculate the mass percentage…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: Calculate the percent by mass of hydrogen in Chloric acid, HClO3.

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Q: A sample of hydrogen sulfide, H2S, has a mass of 30.50 g. Calculate the number of hydrogen sulfide…

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Q: a 0.755g sample of hydrated copper sulfate of hydrated copper sulfate CuSO4.XH2O was heated…

A:

Q: If a sample of iron(III) sulfide contains 5.00x10^15 iron atoms, what is the mass of the sample in…

A: Given,  No. of Fe atoms = 5.00×1015 atoms of Fe molar mass of Fe2S3 = 207.9 g mol-1 mass of Fe2S3 =…

Q: Imagine that all our balances displayed mass in units of slugs instead of grams. Would we still…

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Q: If 0.537 g of copper completely reacts with 0.321 g of fluorine to form a compound, what is the…

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

Q: Calculate the number of (a) nitrogen molecules (N2 molecules) and (b) nitrogen atoms (N atoms) in…

A: Given the mass of nitrogen gas = 0.111g We know that molecular mass of N2 gas= 28g So calculating…

Q: A student calculated the number of moles of carbon dioxide present in a 100.0 g sample of a gaseous…

A: Percentage composition of an element is calculated from its molecular mass. Percentage composition…

Q: Consider a sample of carbon tetrafluoride that contains 1.05 × 10²⁴ atoms of fluorine. Using the…

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Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.