Argon gas has a density of 1.4 g/L at standard conditions. How many argon atoms are 2.0 L of argon gas?

Q: A chemist adds 145.0 mL of a 0.00260 mol/L calcium sulfate (CaSO) solution to a reaction flask.…

A: Given: Volume is 145.0 mL 0.00260 mol/L of calcium sulfate

Q: A chemist adds 0.30 L of a 0.865 mol/L iron(II) bromide (FeBr,) solution to a reaction flask.…

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Q: 11. Pb(NO), # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #3 is a…

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Q: how many grams of carbon dioxide will be made from 7.4x10 to the 23 power molecules of oxygen?…

A: First convert molecules into moles. 6.022 × 10²³ molecules = 1 mole of oxygen 1 molecules= 1÷6.022 ×…

Q: Ascorbic acid ( vitamin C)  molar mass 176g/mol   A healthy adult's daily requirement is 70-90 mg a…

A: The daily requirement of vitamin C for a healthy adult's  is = 70-90 mg The molar mass of vitamin C…

Q: The density of liquid benzene, C6H6, is 0.879 g/cm^3 at 15°C. How many moles are in 73.0 mL of…

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Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Given, Chemical formula for acetic acid CH3COOH Moles of carbon = 30.3 mol

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

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Q: 9:11 A courses.portal2learn.com 1. Solids, liquids, and gases are the three most commonly accepted…

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Q: . Vitamin C has the formula c6h8o6. Calculate the number of vitamin C molecule present in 0.250g of…

A: Applying formula  Mole = gram weight/molecular weight

Q: How many moles of NH3 are contained in a 18.62L sample at 90.0°C and 5.74atm?

A: Given, Pressure (P) = 5.74 atm Volume (V) = 18.62 L Temperature (T) = 90.0°C = (90.0 + 273.15) K =…

Q: How many grams of oxygen are required to produce 46.2 g of water vapor?

A: Here we are asked, How many grams of oxygen are required toproduce 46.2 g of water vapor.

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: 18/8 stainless steel is made up of 18% (m/m) of chromium and 8% of (m/m) nickel in iron. What mass…

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Q: One mole of hydrogen atom contain 6.02 *10^23 hydrogen atoms and occupies 22.4 L. How many hydrogen…

A: Equality a quantity which is expressed in two different metric units, a metric equality can be…

Q: 8. How many chlorine atoms are in 8.4 liters of chlorine gas?

A: Given 8.4 litre gas

Q: A chemist determines by measurements that 0.035 moles of chlorine gas participate in a chemical…

A: Moles of Cl2= 0.035 moles  Molar mass = 70.90 g mol-1 Then,

Q: A chemist adds 1.35L of a 1.6/molL iron(III) bromide FeBr3 solution to a reaction flask. Calculate…

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Q: Number of molecules in 9×10−6 molmol CH3CH2OHCH3CH2OH. Express your answer using four significant…

A: No. of moles of CH3CH2OH = 9×10-6 No. of molecules in 9×10-6 moles of  CH3CH2OH can be calculated as…

Q: A chemist measures the amount of chlorine gas produced during an experiment. She finds that 1.35 g…

A: Calculating number of moles:

Q: A student add 15g of baking soda to 10g of acetic acid in a beaker. A chemical reaction occurs and a…

A: Baking soda : NaHCO3 ACETIC ACID : CH3COOH

Q: Carbon dioxide gas is placed inside container A. Hydrogen gas is placed inside container B. Both…

A: Option D is Correct Answer. Both containers will have same number of particles in them

Q: The empirical formula of a gaseous fluorocarbon is CF2. At a certain temperature and pressure, a 1-L…

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Q: Using the mass of the empty beaker and the mass of the beaker + KOH, calculate the mass of KOH…

A: Number of moles = Mass in g/molar mass

Q: Calculations: Use the following steps to calculate the percent mass of CaCO3 in an eggshell. Use the…

A: It is given that the molarity of NaOH is 0.046 M and the molarity for HCl taken is 1M, And the…

Q: High-density lipoprotein (HDL) cholesterol is the “good” cholesterol because adequate levels reduce…

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Q: A chemist measures the amount of iodine solid produced during an experiment. He finds that 3.02 g of…

A: Please find your solution below : Mole is a unit used to measure amount of a substance. The number…

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

A: Answer: option 2) 90.6% Carbon and 9.4% Hydrogen

Q: A chemist adds 480.0 mL of a 1.3 mol/L sodium nitrate (NaN solution to a reaction flask. Calculate…

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Q: Assuming the gas is at standard temperature and pressure, how many milliliters make up .073 moles of…

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Q: A chemist prepares a solution of zinc nitrate (Zn(NO3),) by measuring out 40.7 umol of zinc nitrate…

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Q: A chemist adds 1.75 L of a 2.80 × 10 -5 mol/L mercury(II) iodide (Hgl,) solution to a reaction…

A: The concentration of any solution can be given by its molarity, molality and normality. The molarity…

Q: A chemist determines by measurements that 0.0350 moles of iodine solid participate in a chemical…

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Q: Ammonium perchlorate NH4ClO4 is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with…

A: In a chemical reaction, two or more reactants react with each other to form a new substances. This…

Q: A chemist adds 1.20 L of a 0.78 mol/L sodium carbonate (Na,CO,) solution to a reaction flask.…

A: Molarity:  Molarity (M) of the solution is defined as the number of moles (n) of solute per liter of…

Q: Part A.Calculate the percent carbon in fructose, C6H12O6 Express your answer are using to decimal…

A: Answer :-  A) The percent Carbon in Fructose, C6H12O6 =  40.00%  B) The percent Hydrogen in…

Q: A chemist adds 1.10 L of a 0.0035 mol/L copper(II) fluoride (CuF,) solution to a reaction flask.…

A: Molarity - ratio of number of moles of solute to the volume of solution in litres. Formula is,…

Q: You have been asked to compound 8 capsules of lithium sulfate, containing 6 mEq Li* per capsule. The…

A: Given,  1 capsule contains = 6 mEq of Li+  Molar mass of Li2SO4 = 109.9 g/mole Weight of 8 capsules…

Q: How many moles Fe(OH)3 are there in 286 g of Fe(OH)3? Round your answer to 2 decimals. Your Answer:…

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Q: The chemical formula for sodium bromide is NaBr. A chemist measured the amount of sodium bromide…

A: A question based on mole concept that is to be accomplished.

Q: a 20 L gas tank. Assuming a molecular formula of C8H18 for gasoline and complete combustion of the…

A: Given  Volume of tank = 209 L molecular formula of gasoline = C8H18 density of gasoline = 819 g/L…

Q: Use the following information to determine how many moles were produced? Round to two decimal…

A: The pressure of the gas is = 742.1 mmHg The volume of the gas is = 9.65 L The temperature of the gas…

Q: How many moles of oxygen will occupy a volume of 7.5L at 1.2atm and 35.0◦C?

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Q: a) Using NO2(g) as an example, show with dimensional analysis that the molecular mass and molar mass…

A: To convert u (amu) to g/mol, u is converted to g and then multiplied with the Avogadro constant.…

Q: The chemical formula for t-butanol is: (CH;), Calculate the molar mass of t-butanol. Round your…

A: Molar mass is nothing but sum of the atomic masses(g/mol)  of each type of atom present in the given…

Q: Ammonium perchlorate (NH,CIO) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A: When Ammonium perchlorate reacts with itself, reaction that takes place is shown in the form of…

Q: What is the mass in grams of 49.5 moles of NaCl?

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Q: Use the following information to determine how many moles were produced? Round to two decimal…

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Q: How many Liters of H2 are made from 12 grams of Al?

A: Mass of Al = 12 g Volume of H2 produced =?

Q: The chemical formula for hydrogen chloride is HCl. A chemist determined by measurements that 0.050…

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".