Calculate the percent by mass of each element in the following compounds to one decimal place. a. C12H22011 .olenodhsoid mui mms onimetes e lo d b. K2CRO4

Q: How many molecules are equal to 2.25 moles of sulfur dioxide? Round to two decimal places.  _ x…

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Q: A sample containing 15.23 moles of calcium fluoride is equal to how many gram

A: A gram is a scientific unit of mass that was defined as the actual weight of a volume of distilled…

Q: question 4

A: Given information:Number of moles of CO(g) = 1.0 moleNumber of moles of CO2(g) = 1.0 mole

Q: Balance the following equations:

A: We have four unbalanced equation of reaction we have to balance each of them with proper…

Q: A container has 5.80 x 1023 molecules (aka atoms) of bromine gas. Calculate the mass (in g) of…

A: Bromine gas = Br2 Molar mass of Diatomic  Br2 gas = 159.808 g/mol 6.022 x 1023 molecules mass =…

Q: Calculate the percent composition by mass for CaCO3. Use the molecular weights to two decimal places…

A: Given, The percent composition by mass for CaCO3 is: a) %C = b) %Ca = c) %O =

Q: What are three errors that could cause one of your mass percentages to be too high?

A: Mass percent or weight percent of a solution is the mass of the solute by the mass of the solution…

Q: Please help Element Moles Mass Cr 0.00450 _____ Fe _____ 84.0mg Ti 1.075×10-3 _____ Hg _____ 1.50…

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Q: What is the mass of 0.10 mole of methane (CH,)? A 0.10 gram 1.00 gram 1.60 grams D 16.00 grams

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Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: First calculate percentage ratio  of mole then form formula

Q: Balance the following equation. Remember to reduce to the lowest possible whole numbers. Include…

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Q: What is the molar mass (in kg/mol) of carbon tetrachloride (CC14)? 6 17 C CL 35.45 12.01 2. 0.2535…

A: Here we are required to find the molar mass of carbon tetrachloride

Q: Calculations Using the Mole Learning Goal: 2.32x1023 13C atoms To learn how to convert grams to…

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Q: A 10 gram sample of NaCl will have the same percent composition (percent by mass) of Na and Cl than…

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Q: 50 Soap, vitamin Cand orange juice The main constituent of soap has a formula C18HON The formula of…

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Q: x, x A 2 A- T Normal I No Spac... Heading 1 Heading 2 Title Font Paragraph Styles 5. Ca:(PO4)2…

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Q: Moles Molecules/atoms Substance Molar Mass Mass Table sugar C12H22011 C. 34334 28.72 Nails Fe 55.85…

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Q: Find the percentage of mass of sodium (Na) in Na2s if it is 32.1%  sulfur (s) by mass.

A: The percentage of mass of an element in a compound is calculated by the formula,

Q: Part B. 4. Volume of a Drop of Water Number of drops (10) 10 Mass of flask + watchgiass + 10 drops…

A: A numerical problem based on dimensional analysis, which is to be accomplished.

Q: Q9) How many moles of Cl atoms are in 65.2g of CHCI3 ? a) 15 b)35 c) 30 d) 3.5

A: Provided amount of CHCl3=65.2g Molar mass of CHCl3=119.38g

Q: O Naphthalene (128.164 g/mol) H. H. H. O Acetic acid (59.04 g/mol) H-C-C HICI

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Q: Moles NH, (mol) 2. Rise Mass NH, (g) Rise Icnis Ik the chemical equation. Mole Ratio of NH,:N, Mass…

A: Here we are using mass by simple mole concept

Q: Number of atoms of C in 16 moles of C,H10 are: O 6.64x10^23 385.41x10^23 O 24.09x10^23 O 96.35x10^23

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Q: Find y n-Al= %3D use the follamng equation: ng mass of Sample = (n-H,-L5y )(65.4) + 27.0y m2య లఆ…

A: Given: Mass of sample = 0.090 g. And n-H2 = 2.720 × 10-2 moles.

Q: FIND THE NUMBER OF MOLES OF OXYGEN IN 42.7g H2O

A: Given,      Mass of Water (H2O) = 42.7 g

Q: O A. 9.3 moles O B. 42 moles OC. 56 moles O D. none of these O E. 14 moles OF. 19 moles O G. 84…

A: From balanced reaction , 1 mol Co3(PO4)2 required = 2 mol Na3PO4  14 moles Co3(PO4)2 required = 2 ×…

Q: Inbox ← → C www. Apps Aktiv Chemistry X OneLogin + X app.101edu.co Time's Up! An unknown compound is…

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Q: AtomIs Molar mass Molels Element loaal 23 12.04X 10 29 c3546 63.5462 copper Gold 393.942 Ag Au…

A: From molar mass we can calculate the no of atom present in the molecules .

Q: Calculate the number of atoms in 12.45 grams of iron . 1.342 x 1023atoms 1.342 x 1022toms 0.223…

A: The question is based on mole concept. We have to calculate number of atoms of iron.

Q: What are the values for % Cl and % F, respectively, for Sample II?A. 0.622 and 61.65 C. 38.35 and…

A: Mass percent of a compound is equal to the mass of component divided by the total mass of all the…

Q: The atomic mass of chromium is 51.996 amu. How many moles of Cr are there in a 5.44 g sample of…

A: The atomic mass of Chromium is 51.996 amu  1 amu = 1 g/mol  Therefore, 51.996 amu = 51.996 g/mol…

Q: How many moles are in 5.53 g C203?

A: Given :- mass of C2O3 = 5.53 g  To calculate :- number of moles of C2O3

Q: How many atoms are there in 75 molecules of acetic acid, CH3CO2H? A compound contains, by mass,…

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Q: The formula weight of potassium dichromate (K2Cr2O7) is __________ amu.

A: The molecular formula of the compound is K2Cr2O7

Q: 5. Which statement is NOT true? a. One mole of a substance contains a fixed number of particles. b.…

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Q: Determine DS for this process, with 2.78 moles of gas at constant temperature:

A: Here, expansion of Helium gas is taking place at constant temperature. Hence, it is an isothermal…

Q: What is the mass of exactly 1 mole of each of the compounds? N,O: Fe(CIO),: Fe(CIO, )3:

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Q: 1. How many GRAMS of manganese(II) oxide are present in 2.43 moles of this compound ? ??? grams.…

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Q: How many moles of aluminum are in an aluminum block that meausres 3.00cm x 3.00 cm x 5.00cm? The…

A: Density: It is a ratio of mass of an object to its volume. Its SI unit is g / cm3. It creases with…

Q: Dichloromethane CH2Cl2  (given density=1.33g/mL) volume: 21.0mL Find the Moles, molecules, and…

A: The density of dichloromethane CH2Cl2 is = 1.33 g/mL The volume of dichloromethane CH2Cl2 is =…

Q: Number of atoms of C in 9 moles of C4H10 are: O 3.74x10^23 O 216.79x10^23 O 24.09x10^23 54.20x10^23

A: C4H10 In one mole of C4H10 = 4 mole of Carbon atoms are present . So , in 9 mole of C4H10  = 9 × 4…

Q: 11. A compound was found to contain 59.9% C, 8.06% H, and 32.0% O by mass. What is the empirical…

A: Given the precentage composition by mass of carbon, hydrogen and oxygenin a compound.we are asked…

Q: 30. A sample of a compound containing only S and Cl contains 2.72g S and 6.04g Cl. Another sample of…

A: given data = a sample compound only containing S and Cl S = 2.72 g, Cl = 6.04 g another sample of…

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

A: Interpretation -  To determine the number of moles in each sample - 38.2g of sodium chloride  36.5g…

Q: How many moles of zinc ( Zn ) are there in 45.6 grams of zinc? A. 0.697 moles B. 1.39 moles C. 0.349…

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Q: What is the mass of 4.9 moles of N2O5?   a.   52.92g   b.   5.292g   c.   0.5292g…

A: We have given the moles of N2O5 = 4.9 mole

Q: Calculate the mass of 14.4 moles HgO. (In Kilograms)

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Q: 1. How many GRAMS of phosphorus are present in 2.39 moles of phosphorus triiodide ? grams. 2. How…

A: The molar mass of phosphorus triiodide (PI3) is 411.69 g/mol The molar mass of phosphorus is 30.97…

Q: a. How many moles are in 8.5x1022 atoms Xe? b. How many moles are in 7.4×10 atoms Cu? c. How many…

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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.