What is the mass in grams of 250 liters of oxygen gas, O2? Answer the equation in the format in the picture posted, answer In scientific notation.

Q: Violet has found a container of aluminum bromide that says it contains 3.67 moles of AlBr3. What is…

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Q: Suppose you have two balloons-one filled with hydrogen and the other with chlorine at the same…

A: Since the number of molecules of both atoms is same Hence moles =  number of molecules / Avogadro's…

Q: Click in the answer box to activate the palette. A sample of a compound containing boron (B) and…

A: Given, Sample of a compound containing: Mass of boron (B) = 7.663 g Mass of hydrogen (H) = 2.143 g…

Q: How many molecules of C7H12 would you have if you have 3.31 mol? Report your answer with 3…

A: A mole is defined as the quantity containing avogadro number of particles (6.02 x 1023 particles).…

Q: How many molecules of C6H12C6H12 would you have if you have 3.31 mol? Report your answer with 3…

A: Given, Number of moles of C6H12C6H12 = 3.31 moles Number of molecules of C6H12C6H12 = ?

Q: Be sure to answer all parts. How many moles of cobalt (Co) atoms are there in 9.00 x 10° (9.00…

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Q: How many molecules are present in one mole of water, H2O? Express your answer in scientific…

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: If a sample of CgHsCO2H is found to contain 3.86 · 1020 H atoms how many C6H5CO2H molecules are…

A: Given: number of H atoms = 3.86×1020 atoms

Q: How many moles are in 2.45 x 10^23 molecules of Na2S?Answer In scientific notation.

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Q: chemist determines by measurements that 0.0600 moles of oxygen gas participate in a chemical…

A: Number of moles of oxygen gas = 0.0600 moles

Q: How many grams of iron are combined with 78.8 grams of oxygen to make iron(II) oxide compound ?

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Q: Determine the mass (in grams) of 9.44 x 1024 molecules of NO2. Do not submit units in your answer.

A: Atomic weight of N= 14g Atomic weight of two O atoms = 32 Molecular mass of NO2=  46g  One mole of…

Q: Be sure to answer all parts. How many molecules of ethane (C,H) are present in 0.413 g of C,Hg? x…

A: The molar mass of ethane is,

Q: Be sure to answer all parts. How many moles of cobalt (Co) atoms are there in 3.00 x 10° (3.00…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Be sure to answer all parts. How many H atoms are in 61.9 g of isopropanol (rubbing alcohol), C,HgO?…

A: The mass of isopropanol is = 61.9 g The molar mass of isopropanol is = 60.1 g/mol The number of the…

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

A: Given: Compound: CH3COOH Moles of Oxygen are 1.88 moles. To find: Moles of H in the sample

Q: Calculate the mass in grams of 3.96 x 1024 molecules of dichlorine hexaoxide. Enter your answer in…

A: The compound given is dichlorine hexaoxide. From the name we can see that the compound will have 2…

Q: How many moles of oxygen atoms are in 5.3E-1 moles of CO? Only give the numeric value of your…

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Q: Maggie filtered out a sample of copper (II) chloride, CuCl2 from a local pond, and found its mass to…

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Q: The chemical formula for diethyl sulfoxide is: (CH,CH,), SO Calculate the molar mass of diethyl…

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Q: How many C atoms are present in 8.94 · 1020 CH3C(O)H molecules? Express your answer in scientific…

A: Scientific notation is way to express the numbers that are too big or small to be written…

Q: Determine the number of carbon atoms in a 381 mg tablet of acetaminophen (C3H9NO2). Given: Molar…

A: Given: Mass of C8H9NO2 = 381 mg = 0.381 g                  (Since 1 g = 1000 mg) And molar mass of…

Q: What is the amount of Ne in moles in a 355 gram sample of Ne? (Molar mass of neon = 20.18 g/mol)…

A: Given   mass of Ne            = 355 gram  Molar mass of Ne  = 20.18 gram/mole  Number of mole of Ne…

Q: The black powder used to propel a firework into the sky is made up of 64% by mass potassium nitrate…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: Aluminum oxide, Al203, is used as a filler for paints and varnishes as well as in the manufacture of…

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Q: How many moles are in 2.45 x 10^23 molecules of Na2S?

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Q: How many moles of N2O5 contain 4.8x1036 molecules of N2O5? In scientific notation

A: Moles can be defined in terms of number of particles as: moles = NNA where N is the number of…

Q: How many oxygen atoms are there in 28.37 moles of carbon dioxide? Avogadro's number 6.022 x 1023…

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Q: What is the mass, in grams, of 9.03x1023 molecules of methanol

A: Solution 1(a) To calculate mass in grams of methanol. Provided data:- No. of molecules = 9.03×1023…

Q: attempts left Chec Enter your answer in the provided box. Calculate the number of grams of Al in 461…

A: Number of moles is calculated by dividing  given mass with molecular mass.

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

A: To solve this problem we have to first find the number of moles of oxygen in the given chemical…

Q: Be sure to answer all parts. How many molecules of ethane (C,H) are present in 0.318 g of C,Hg? x 10…

A: Given Mass of ethane = 0.318 g Standard value Molar mass of ethane = 30 g/mol

Q: Show all calculations and steps: 4. Which is contains more molecules, 8.12 x 10 ^23 molecules of…

A: molecules of calcium chlorate = 8.12× 1023 molecules Mass of calcium chlorate = 245.86 g

Q: How many oxygen atoms are there in one of these pills (due to the presence of ethinyl estradiol)?…

A: as per theoretical data , Ethinyl estradioal have 0.044mg  convert into g using mole concept

Q: How many grams

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Q: The chemical formula for diethyl sulfoxide is: (CH,CH,),SO Calculate the molar mass of diethyl…

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Q: Be sure to answer all parts. Calculate the number of atoms in 0.422 g of potassium (K). Enter your…

A: Solution The mole thought may be a convenient methodology of expressing the number of a substance.…

Q: Clik in the answer box to activate the palette. Determine the empirical formula of a compound…

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Q: What number of moles of X is needed to obtain 75.36 grams? (Assume that the molar mass of X is 53.31…

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Q: Be sure to answer all parts. Potassium is the second most abundant metal in the human body.…

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Q: how, many grams of phosphorous are contained in 3.07 x 1027 atoms of phosphorous? Enter your answer…

A: The concept of mole is a conducive way to express the amount of particles. This is a measurement…

Q: Potassium is the second most abundant metal in the human body. Calculate the following: (a) The…

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Q: how many sulfur atoms are in 11.12 g of S7O2? report in scientific notation and to the hundredths…

A: Given :- mass of S7O2 = 11.12 g  To calculate :- Total sulfur atoms present in the given amount

Q: Calculate the number of O atoms in 0.0985 g of  CaSO4 · 2H2O Help i have no idea how to solve this.…

A: Given,0.0985 g of CaSO4. 2H2OMolar mass of CaSO4. 2H2O is 172.1712 g/mol.

Q: What is the mass in grams of 0.402 mol of magnesium fluoride? Round your answer to the correct…

A: Given: Number of moles of magnesium fluoride (MgF­2) = 0.402 mol Molar mass of MgF­2 = 62.3018 g/mol

Q: 目 Using the chemical equation above, solve the problem listed below: How many grams of Li,SO, would…

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Q: Be sure to answer all parts. How many molecules of ethane (C,H) are present in 0.709 g of C,Hg? x 10…

A: The number of moles means the number of molecules divided by the Avogadro's number (NA) Or, a number…

Q: How many atoms are present in 0.025 mol of iron? (Enter your answer in scientific notation, i.e.,…

A: Stoichiometry involves the calculation of concentration of solutions in the given conditions of…

Q: What is the mass percent of oxygen in aluminum carbonate? Report your answer to 3 significant…

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Q: An 0.7500 mol sample of a covalent compound has a mass of 81.45 g. Determine the mass (g) of one…

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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.