How many H atoms are present in 8.0 g of CH4? O 3.0 x 1023 О 8.3 х 10-25 О 3.7х 1023 O 1.2 x 1024 O 7.7 x 1025

Q: moles of H₂O

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Q: What is the mass % of sulfur in aluminum sulfate Al2(SO4)3 rounded to three significant figures?

A: Considering the atomic mass of elements present in the aluminium sulfate, we determined the molar…

Q: How many moles are there in 25 g of hydrogen Chloride, HCl?     4.32 x 10^23 molecules   5.34 x…

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Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: Given -> CaCO3(s) -----> CaO(s) + CO2(g)  Weight of sample = 2.237 gm  Weight of CO2 formed =…

Q: How many molecules of carbon dioxide, CO2, are in 4.77 x 10.2 g of the molecule? O1.26 x 1024…

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Q: Consider the chemical formula for one molecule of methane, CH4. If instead of one molecule we had 10…

A: According to chemical formula of methane ( CH4 ) , it's very clear each molecule of methane has one…

Q: If 5.9 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, how many kg of CO₂ is…

A: Calculate the moles of CO2 produced, Calculate the mass of CO2 produced,

Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: 2 In(1) + InBr3(s) → 3 InBr(s) 0.500 mol___mol mol

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Q: 6. The composition of a given substance is as follows: 3.5 mol C, 2.52 g H, 24.0 g O, 3.01 x1023…

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Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Number of iron atom = 1 Mass percent of  Fe in the compound = 0.330 %

Q: 5. How many molecules are there in 6.71 mol of glucose (C6H1206)? 1 mol = 6.02 x 1023 molecules

A: Final answer:- 4.04*1024 molecules

Q: 3.98 mgHgO

A: Mass of HgO = 3.98 mg    = 3.98 ×10-3 g Molar mass of HgO = 216 g/mol

Q: Aluminum has a density of 2.70 g/cm^3. How many moles of aluminum are in a 12.2 cm^3 block of the…

A: All things are provided in handwritten solution

Q: Nitrogen dioxide is a component of urban smog that forms from gases in car exhaust. How many…

A: Detail mathematical calculation is shown below

Q: grams

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Q: A 1.42 g sample of KCr(SO) XH20 was heated in a crucible to get a constant mass. The mass of the…

A: Formula to calculate mole is :-  Mole = mass÷ molar mass

Q: If  3.68 x 1021 formula units of sodium bromide are reacted with excess chlorine gas, how many…

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Q: A certain sample of butane fuel (C4H10) was analyzed and found to contain 1.8 x 1024 hydrogen atoms.…

A: Octane is a hydrocarbon of alkane category. Its general formula is CnH2n+2 where n is an integer.The…

Q: Consider the following reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) If 3.60 g NH3 and 5.40 g O2…

A: The answer is as follows:

Q: How many molecules are there in 39 grams of oxygen? 39.0 g O, x =? molecules O2 32.00 g 02=1 mol O2…

A: Applying formula of moles  n=w/m  No of molecules=n×NA

Q: The molecular weight of benzoic acid, HC7H502, a carboxylic acid used as a food preservative, is…

A: Steps to find molar mass of a compound :determine the number of atoms of each element in the…

Q: Determine the mass in grams of 1.6 × 10⁻³ mol glucose (C₆H₁₂O₆)   How many moles of propylene (C₃H₆)…

A: The question is based on mole concept . We have to calculate moles,  mass and hydrogen atoms.

Q: Given 70 g of CI2, how many particles of Br2 is produced? Cl2 + 2KB → 2KCI + Br2 O 6.02 x 1023…

A: First calculate moles of Cl2. Then use mol to mol ratio to calculate moles of Br2 and use relation…

Q: Nitric acid is used in the production of fertilizer as well as nitroglycerin.  Convert 2.9 x 1021…

A: Since, we know that ; 1 mol of nitric acid contains 6.022 × 1023 molecules. So,  2.9 × 1021…

Q: Ethanol, CH3CH2OH, is the principal type of alcohol found in alcoholic beverages, produced by the…

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Q: Consider a sample of calcium carbonate, CaCO3 (100.09 g/mol), in the form of a cube measuring 2.88.…

A: The length of the cube of calcium carbonate, CaCO3 =2.88 cm The density of the calcium carbonate,…

Q: Aluminium has a density of 2.70 | g/cm3 . How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density :- Density of a substance is its amountof mass per unit volume . So , density is the…

Q: One term in a balanced chemical equation contained the coeffi cient 3 in front of the formula Al…

A: The subscripts in the molecular formula represent the number of atoms of each type present in the…

Q: Determine the molarity f enchof tke folla a 1.5 mol. kcl in 1.SL Salu4m b. o.5 g. • f H2 Sou inIL f…

A: Formula used:- Molarity = number of moles of solute/volume of soln(L)

Q: Two molecules of borane can come together to form an unusual bond using two electrons. How many…

A: Boron-hydrogen-boron  bridge bond is a 2 electron bond and is called 3-center , 2-electron bond

Q: How many hydrogen atoms are contained in 3.64 g of PtCl2(NH3)2? O4.90 x 1022 O9.79 x 1022 О4.38 х…

A: Molar mass of PtCl2(NH3)2 is given by  Molar mass = Atomic mass of Pt + Atomic mass of Cl X 2 +…

Q: A balloon filled with neon gas, Ne, contains 9.870 x 1025 atoms. Use the molar mass of neon, 20.18…

A: Given,number of atoms of neon ( Ne ) gas = 9.870 x 1025 atomsmolar mass of Ne = 20.18 g/mol

Q: How many calcium atoms are in 1 g of CaO? O 9.553 x 10-23 O 7.201 x 1023 O 1.074 x 1022 O 1.422 x…

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Q: How many molecules of H2O would be found in 54.05 grams of water?    choices: 3.252 x 1025 molecules…

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Q: O 4.29 x 10 10 g What is the mass of 4.63 x 1012 atoms of Fe? O 1.08 x 10 10g O 9.76 x 10 10 4.29 x…

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Q: CaO + H2O → Ca(OH)2 If 9.5 × 1024 particles of Ca(OH)2 are produced, how many moles of CaO were…

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Q: How many Cl atoms are in 0.0728 g of PCI 3? 1.81 x 10 24 Cl atoms 4 38 x 10 22 Cl atoms 1.32 x 10…

A: We know that, Number of moles = mass / molar mass Given, Mass of PCl3 = 0.0728 g molar mass of PCl3…

Q: How many moles of H₂O can be formed from 4.05 × 10²³ atoms of NH₃ from the following equation? 4 NH₃…

A: Given: Number of NH₃ atoms = 4.05 × 10²³ atoms

Q: A 3.06 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: Empirical formula: Formula containing atoms in smallest possible integer ratio Molecular formula:…

Q: How many moles of H₂O can be formed from 8.63 × 10²³ molecules of NH₃ from the following equation? 4…

A: Given:  Number of molecules of NH3 = 8.63 x 1023  Number of moles of NH3 = 8.63 x 1023/6.02 x 1023 =…

Q: The mass, in grams, of 1.5 x 10-2 mol of CdS. The number of moles of hydrogen in 86.6 grams of…

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Q: If you have 1 mol Xe and 1 mol F₂, how many moles of XeF₄ can you create in the following chemical…

A: Given: 1 mole Xe and 1 mole F₂ To determine: Moles of XeF4 formed

Q: A 0.05 g drop of water contains 2.78 x 10-3 mol of water. How many molecules of water are in one…

A: This problem is based mole concept.Here, we have to find out the number of molecules of water in one…

Q: What is the percent NaCl in the sample?

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Q: How many calcium atoms are in 1 g of CaO?

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