Give the mass % of carbon in your compound  ___________________18.537956___________ Give the mass % of hydrogen in your compound  _____________________3.11178341_________ Symbol or name of your 3rd element in your compound  _________iodine_____________________ Give the mass % of your 3rd element in your compound  ___________________78.350261___________ Do step 1, that is convert from mass % to mass of each of your three elements

Q: How is the mass percent of elements in a compund different for a 1.0-g sample versus a 100.-g sample…

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Q: Compound Weight (in grams) Molecular Weight Barium hydroxide 10 171.34 g/mol Sodium chloride 25…

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Q: 1) a chemical mole A-is a kind of material B-is a large molecule C-contains an undetermined number…

A: Mole concept: Avogadro's number = 6.022 × 1023 1 mol of any substance contain 6.022 × 1023 molecules…

Q: A compound is found to contain 15.94 % boron and 84.06 % fluorine by mass. What is the empirical…

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Q: A. Molar mass of an Element = Atomic mass of the Element Molar mass of a Compound = Molecular mass…

A: Given: Molar mass of C = 12.01 g/mol Molar mass of O = 16.00 g/mol Molar mass of Pt = 195.08 g/mol…

Q: Which does NOT describe a mole?A. a unit used to count particles directlyB. Avogadro’s number of…

A: Mole is an SI unit used to measure the amount of the substances present. One mole of the substance…

Q: A molecular compound is found to consists 30.4% nitrogen and 69.6% oxygen. if the molecule contains…

A: Given Composition of N = 30.4 % Composition of O = 69.6 %

Q: Only need help with subpart "d"   Use the following data and steps below to calculate the formula…

A: The di-hydrate of copper chloride has the molecular formula, CuCl2.2H2O

Q: number of atoms in 37 g of vanadium

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Q: a compound is found to contain 40 % carbon, 6.7 % hydrogen, and 53 % oxygen by weight. What is the…

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Q: Fill in the following table, show your work. Substance Mass (g) Moles (mol) Molecules (molec) N2…

A: Number of moles present can be determined by dividing the mass of the substance by its molar mass…

Q: If a sample of barium hydroxide has a mass of 5.190 g, determine the number of moles of the compound…

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Q: inside the front cover of this book to calculate the mass in grams of each of the following samples.…

A: Note : As per our guidelines we are supposed to answer only first 3 subparts of first question.

Q: ▼ ▼ Part B Calculate the molar mass for Mn207, an oxide of manganese. Express your answer to five…

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Q: How many atoms are in 15 g LİCIO,? number of atoms: How many ions are in 15 g LiCio,? number of…

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: Calculate the following: 1. Mass of 4.3x10mol of lead 2. Mass of 3. 8x10 antimony atoms 3. Number of…

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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: 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: percent by mass of sulfur in P4S10

A: The given question can be solved by using the mass percentage formula which is- Mass percent = Mass…

Q: A sample contains 0.687 mol H3PO3. What is the mass of H3PO3in the sample?

A: Given that, Moles of H3PO3 = 0.687 mol  Molar mass of H3PO3 = 82 g mol-1 Then,

Q: A substance has a molecular mass of 143151 u. Find the mass of one molecule of this substance.

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

Q: A faraday is      a mole of protons     a charge of one electron     a mole of electrons…

A: One Faraday of electric charge equlas to the charge on a mole of electrons (e-), that is 6.022 x…

Q: A 20.101 mg20.101 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen…

A: Empirical formula of a compound gives the relative ratio of various elements present in a compound.…

Q: How many moles are there in a. 7.5 grams of KCIO3 b. 22.9 grams of (NH4)2SO4

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Calculate the mass of Mg. Calculate the mass of the product. Calculate the moles of Mg in the…

A: Mass of any product is calculated by eliminating the mass of watch glass and evaporating dish from…

Q: Complete this formula for molar mass of the compound sulfur hexafluoride s- ?g/mol x ?Mol = ?g f-…

A: Ans As we know the molar mass of the formula is equal to the total mass of elements presesnt S    32…

Q: number of moles

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Q: You discover a new compound, somewhat related to the garnet types of silicate compounds. What is the…

A: The mass of one molecule of a substance is known as molecular mass. The molecular mass of the sum of…

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: Which sample contains the largest number of chlorine atoms? 10.00g of copper (II) chloride 10.00g…

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Q: What advantage is there to using a counting unit (the mole) inchemistry rather than a mass unit?

A: Using counting unit as mole in chemistry is advantageous as with help of this we can inter convert…

Q: 125 grams of sugar (C12H22011) is _ mole? Select an answer and submit. For keyboard navigation, use…

A: The given data is as follows: The mass of the sugar = 125 g The moles of sugar = ? To calculate the…

Q: Which sample represents the greatest number of moles? 10 Water (A Compound) Water medecdes havea…

A: The moles of a substance can be calculated as follows: Moles of substance=Mass of substanceMolar…

Q: A certain compound contains only three elements: carbon, hydrogen, and chlorine. A sample of the…

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

A: The molecular formula of the compound is K2Cr2O7

Q: Chemistry a student was given a sample of CaCO3 * XH2O to find the empirical formula. she measured…

A: CaCO3 .xH2O  upon heating  will lose its water and this a given sample will lose some of its mass…

Q: Calculate the number of sodium atoms in each following samples: A. 1 mol sodium oxide B. 50g…

A: Given, three samples containing sodium as following,A) 1 mol sodium oxide  B) 50g sodium chlorideC)…

Q: What quantity is needed to convert between the moles of carbon and the number of carbon atoms in a…

A: Moles of Carbon atom = amount of carbon atom/atomic mass of carbon Number of carbon atom means how…

Q: How many atoms are present in 123 g of sodium cyanide (cyanide = CN-)?

A: Dear student since it is a multiple type question, according to guidelines here I am solving only…

Q: A compound is found to contain 46.68% nitrogen and 53.32% oxygen by mass. What is the empirical…

A: Given, percentage of nitrogen =46.68% percentage of oxygen = 53.32 %

Q: Order them in decreasing order of the amount of oxygen. = Chlorate = Hypochlorite = Chlorite E…

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Q: A compound is found to contain 37.32 % phosphorus, 16.88 % nitrogen, and 45.79 % fluorine by mass.…

A: Empirical formula of a compound can be defined as the simplest whole number ratio of atoms  present…

Q: How many atoms are in 156 mL of ethanol? (Density = 0.79g/mL) (Molar mass: 46.07g/mol)

A: Number of atoms present in 156 mL of ethanol is to be determined. (Density = 0.79g/mL) (Molar mass:…

Q: What is the molecular formula of each compound?(a) Empirical formula CH (μ=78.11 g/mol)(b)…

A: a) Empirical formula = CH     Given mass = 78.11g/mol     Empirical formula mass = 12 + 1=13g/mol…

Q: A certain chemical substance has the following percent composition by mass. Element Mass Percent…

A: → For calculating Empirical formula for compound we follow these     steps :-i Calculate %Atomic…

Q: 18. 7.68 g/mol ® ng/molecules

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

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: 1. Determine mass (in mg) of carbon that contains 0.050 moles.

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Q: Mass of zinc coating =0.15g Number of moles of iron = 0.0184 mol Number of moles of zinc = 0.00229…

A: The galvanized iron contains both iron and zinc, whereas the iron core contains only iron. We are…

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.