What is the percent composition of oxygen by mass to one decimal place in CuSO4 . 5H2O? A. 57.7% B. 40.1% C. 32.0% D. 25.6%

Q: Determine the number of molecules in 23.6 grams of CH₄.

A: Given : Mass of CH4 = 23.6 g

Q: Determine the number of moles of phosphorus in 7.722 g of Zn3(PO4)2.  [Mr (Zn3(PO4)2) = 386.1 g…

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Q: Caproic acid, which is responsible for the foul odor of dirty socks, is composed of C, H, and O…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: be

A: Based on formula weight we can calculate the % mass composition of constituting atoms/elements

Q: A 3.75-g sample of limestone (CaCO3) contains 1.80 g of oxygen and 0.450 g of carbon. What is the…

A: Given,Mass of a sample of limestone, CaCO3 = 3.75 gMass of oxygen in this sample = 1.80 gMass of…

Q: 0.6 moles of strontium phosphate contains how many oxygen atoms?     A. 0.8 NA   B. 2 NA   C.…

A: Answer: Molecular formula of Strontium Phosphate: Sr3(PO4)2

Q: 1. Determine the experimental mole-to-mole ratio of Na2CO3 to NaCl from reaction data. a) First,…

A: Note - Since you have asked multiple questions, we will only do the first question for you. To get…

Q: How many grams of C2H4 are in 3.27 moles?

A: Molecular weight of C2H4 is =( 2 ×carbon mass) + (4× hydrogen mass)…

Q: The moles of Glucose (C6H12O6) in 18 grams of Sucrose is 342 0.1 0.01 34.2

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Q: Data Table 1. Moles and Atoms in Common Items Item Aluminum Cup Glass Stirring Rod Cotton Ball A.…

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Q: Determine the number of moles in 5.00 × 10²³ formula units of BaBr₂.

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

Q: what is the mole ratio between aluminum oxide and oxygen gas? 2Al2O3->4Al+3O2

A: The balanced chemical equation of ten above reaction ; 2Al2O3  --->   4Al + 3O2   From this above…

Q: A sample contains 27.1 g of calcium oxide. How many moles of calcium oxide are in the sample ? a.…

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

Q: Calculate the number of moles of O in each? a.) 2.3 mol H2O b.) 1.2 mol H2O2 c.) 0.9 mol NaNO3 d.)…

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Q: Determine the mass, in grams, of 0.810 moles of Co (1 mol of Co has a mass of 58.93 g).

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Q: MOLAR VIEW T03/S11 If a sample of (NH4)2HPO4 is found to contain 3.79 mol of NH4* ions how many…

A: The reaction can be written as follows: (NH4)2HPO4→2NH4++HPO42-

Q: (a) Determine the mass in grams of 4.23 moles of glucose (C,H1206). g CH1206 (b) Determine the…

A: Number of moles is the ratio of given mass of the substance to the molecular mass of the substance.

Q: A friend asks you to help her find the percent composition by mass of ethane (C,H). She says that…

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Q: Borax, a common laundry product, is sodium borate decahydrate.  The chemical formula is Na2B4O7 ⋅⋅…

A: Using the molar mass of borax and molar mass of water we can find percentage of water.

Q: How many moles of Ge (element number 32) are in a 217.4 g sample? 1.497 mol 0.3340 mol…

A: We have given that Mass of Ge = 217.4g  Atomic mass Ge = 72.63g/mol

Q: Calculate the percent composition by mass of each element in Al(OH)3.Al(OH)3. Use at least three…

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Q: Which of the following has the highest number of molecules? 1.0g F2 1.0g O2 1.0g Cl2 1.0g H2

A: One mole of a substance is equal to the mass of carbon-12 which contains 6.023 × 10²³…

Q: How many moles are present in 105.6 g of H2SO4? 105.6 mol 98.08 mol 0.9288 mole O 1.077 mole

A: Calculate number of moles of H2SO4 in 105.6 g ?

Q: 1. Determine the percent composition of the following: a. A scientist analyzes a 50.0g sample and…

A: Here we are required to find the percentage composition.

Q: a 5.000g sample that contained NaCl and BaCl2 *2H2O was heated. After heating the sample had a…

A: Given : Mass of sample of NaCl and BaCl2*2H2O = 5.000 g And mass of sample after heating = 4.688 g

Q: Find the percent composition of each element in Sodium Citrate (Na3C6H5O7)

A: Percent composition:  It is defined as the ratio of the amount of element to the total amount of the…

Q: Determine the number of molecules in 31.6 grams of CCl4

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Q: 35. Determine the percent ammonia, NH3, in Co(NH3)6Cl3, to three significant figures.

A: Percentage by mass of any element in its compound is the amount of that element divided by the total…

Q: Part C How many moles are in 20.0 g of MgCl2 ? Express your answer to three significant figures.…

A: Mole concept:  A mole  is the quantity of a substance that contains atoms, molecules, ions,…

Q: 6NO + 4NH3 --> 5N2 + 6H2O Mole ratio of NO to N2 NH3 to N2…

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Q: Mass of NH4NO3 (s) + H2O (l) = 1.9871 Determine the moles of NH4NO3 in the sample. The molecular…

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Q: During her baking class, Iana used 545g table sugar (C12H22O11). Calculate a) number of moles, b)…

A: Given, Mass of table sugar (C12H22O11) = 545 g Number of moles of table sugar (C12H22O11) = ? Number…

Q: 1) 25.0 grams C to mole 2) 75.0 grams Ne to mole 3) 0.500 mole CO, to grams 4) 4.00 mole H,0 to…

A: The number of moles of compound can be calculated as follows: Moles of the compound=Mass of the…

Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

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Q: Hi. I am trying to calculate the percent of water in an uknown hydrate. The given data is: mass of…

A: Law of conservation of Mass :- Law of conservation of mass states that mass can neither be created,…

Q: F. Percent CaCO, in Mixture 1. Moles of CaCO, in sample from mol CO, generated (n See equation 13.1.…

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Q: Determine the empirical formula of a compound that has the following percent composition: 65.25%…

A: Answer:- This question is answered by using the simple concept of calculation of empirical formula…

Q: How many formula units of CaCO3 are contained in 350. g CaCO3?

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Q: How many moles are in 2.5 g of N2? 0.089 moles 0.18 moles 1.3 moles 11 moles

A: We have give that  Mass of N2 = 2.5 g  And we have to find number of moles in 2.5 g of N2

Q: 1. How many moles are in each of the given samples? a) 2.50 mL of water (assume density of water is…

A: Note : As per our guidelines we are supposed to answer first 3 parts .please resubmit the other…

Q: Which contains the most moles of carbon?

A: Number of moles = Mass/Molar mass  Molar mass of CO2 = 44.0 g/mol  Molar mass of C3H4 = 40.0 g/mol…

Q: What is the percent composition of oxygen in aluminum nitrate?     6.58%     67.60%     12.67%

A: Aluminium Nitrate is Al(NO3)3 Atomic mass of Al = 27 g mol-1 Atomic mass of N = 14 g mol-1 Atomic…

Q: How many molecules are there in 0.1 mole of water? a. 3.0 ×1023 b. 6.0 × 1022 c. 3.0 × 1021 d. 6.0…

A: Given, the number of moles of water =0.1 moleswe are asked to calculate the number of molecules of…

Q: A) How many grams of Mgl2 is present in a 0.4745 g sample that is 53.21% Mgl2 (278.11 g/mol)? B)…

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Q: find the percent composition by mass of C12H22011 find the percent composition by mass of Fe304

A: By determining molecular mass and using percentage composition by mass formula calculate .

Q: Percent Composition 1. Calculate % mass of water in: CUSO4•5H20 Mass of Water = Cuso %3D Mass of…

A: Given: A compound CuSO4 x 5H2O Atomic masses of the elements are, H = 1 O = 16 S = 32 Cu = 64

Q: The molar mass of carbon dioxide is 44.009 g/mol. A mass of 220.0 grams of carbon dioxide is…

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Q: 1 mole H2 1 mole O2 32 g Oz 88H2 1 mole O2 2g H2 A

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Q: ) How many grams of MgI2 is present in a 0.4745 g sample that is 53.21% MgI2 (278.11 g/mol)? B)…

A: Weight of sample = 0.4745 gm (w/w)% = 53.21 % Molar mass of MgI2 = 278.11 g/mole Molar mass of AgI =…

Q: 1.The compuond cisplatin Pt(NH3)2Cl2 is an antitumor. a)Calculate the elemental percent composition…

A: In problem a) we will find out the mass percentage of elements present in cisplatin and in b) we…

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.