If you measure out 44.0 grams of KCL, how many moles of KCl are present when the formula mass is 74.55g/mole

Q: A compound has an epirical formula of CH2O. If the molar mass of the compound is 60g/mol, what is…

A: emperical mass=12+2+16=30 n=60/2=2

Q: molecular formula for this compound

A: The empirical formula of compound is CH2 The empirical formula mass of compound is 14.0 g The molar…

Q: A sample of sulfolane, C.H3O,S, contains 5.00 x 1024 atoms. How many moles of sulfolane are in the…

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Q: the number of formula units of KCL in 3.8 mol of KCL

A: Given: Moles of KCl = 3.8 mol.

Q: Determin the number of moles of compound within 0.25 g of glycine, CH;NO2

A: Given :- mass of glycine = 0.25 g  To calculate :- no. of moles of glycine

Q: Exactly 1 mole of Mg2ClO contains how many moles of Mg, Cl, and O

A: 1 molecule of Mg2ClO contains 2 Mg atoms  1 Cl atom  1 O atom

Q: Enter your answer in the provided box. Calculate the moles of O atoms in 1.17 g of Mg(NO3)2. mol O…

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Q: Without using a calculator, arrange these samples in orderof increasing numbers of O atoms: 1 mol…

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Q: moles

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Q: How many moles of hydrogen are in 3.06*10^-3 g of glycine, C2H5NO2

A: Avogadro’s number is used to determine the number of atoms present in 1 mol of an element.…

Q: 20. How many molecules are contained in each of the following: (a) 1.75 mol Cl, (b) 0.27 molC,H,O…

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Q: alculate the number of moles of He atoms present in 4.65 g of H

A: Number of moles = weight / atomic weight    Given ,  weight = 4.65g Atomic  weight of He = 4 g/mol

Q: Complete combustion of 5.80 g of hydrocarbon produced 17.8 g of CO2 and 8.49 g of H2O. What is the…

A: Empirical formula is the smallest atom ratio by which a compound can be represented.

Q: Particular thermos can hold 473.2 ML of warm beverage. If the Thermo is filled with hot cocoa, which…

A: Given that,Concentration of the sugar = 0.23 M = 0.23 mol/L Capacity of the solution in thermos =…

Q: how many moles of hydrogen are in 3.06*10^-3 grams of glycine

A: Given: 3.06*10^-3 grams of glycine.

Q: Calculate the number of moles of carbon present in the following sample. 1.271 g of ethanol, C2H5OH

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Q: 25.0 g sample of Ca(NO3)2.

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How many moles of potassium cyanide, KCN, are present in a sample containing 67.1 grams of the…

A: Given, Mass of potassium cyanide (KCN) = 67.1 g Moles of potassium cyanide (KCN) = ? Note:  Molar…

Q: Calculate the number of formula units present in a sample that contains 4.8 moles of potassium…

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Q: A sample of lead (IV) chloride, PbCl4, weighs 2.687 g. How many moles are in this sample?

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: Calculate number of moles for the following quantities: a) 1.29 g NaOH b) 4.50 g NaCl c) 50.0 g…

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Q: Table 1. The relationship between mass, mole and number of particles Formula of Molar mass Mass (g)…

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Q: You are given a 10.0 grams sample of ethanol (CH3CH2OH).   Explain how you can use the molar mass of…

A: The Avogadro’s number of any species is defined by a mole. The Avogadro’s number, NA, is equal to…

Q: 20. How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F=19.00 g/mole 1.01 g 0.992…

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Q: Calculate the mass in grams of moles of 9.191 *10^-6 1,2-dichloroethane, C2H4Cl2 .

A: Molar mass(MM) = 99  g/mol Moles = 9.191×10-6 mol Mass = moles × MM

Q: 20. How many molecules are contained in each of the following: (a) 1.75 mol Cl, (b) 0.27 molC,H,0…

A: Since you have posted a question with multiple sub-parts, we will solvefirst three sub- parts for…

Q: 2NH3 + 3CUO → 3Cu + 3H2O + N2 How many mole ratios will you have in the equation? List 4 mole…

A: A mole ratio is ​the ratio between the amounts in moles of any two compounds involved in a chemical…

Q: A crime scene investigator finds a 3.5 g (C10H14N2) sample of nicotine and sends it to the lab for…

A: Please find the attachment.

Q: How many molecules of water are made from 8 molecules of H2? molecules

A: Balanced equation for the formation of water from hydrogen and oxygen is as follows. 2H2+O2→2H2O…

Q: Which one of the following statements concerning the mole is false? One mole of a substance has the…

A: Since moles = mass / molar mass Hence 1 moles of substance will have different mass compared to…

Q: A sample of CH 3 F contains 2.71 * 10 ^ 24 molecules. How many moles of CH 3 F are present?

A: Since moles of any molecule = number of molecule / Avogadro's number  Avogadro's number = 6.022 X…

Q: Which has more hydrogen atoms? A mole of CH4 or two moles of H2? Provide an explanation.

A: Interpretation: Which has more hydrogen atoms, a mole of CH4 or two moles of H2 is to be determined.

Q: In the following chemical reaction, determine the number of moles of NH3 from 2.50 moles of H2.…

A: Given reaction,             Moles of H2 is 2.50.

Q: Complete the table below for calculating the molar mass of the compound silicon dioxide. Mass in one…

A: We have to calculate the molar mass of silicon dioxide.

Q: A chemical analysis determined that the Butyric acid molecule was made up of 54.5% C, 9.09% H, and…

A: Given: Percent mass of carbon = 54.5 % Percent mass of hydrogen = 9.09 % Percent mass of oxygen =…

Q: 1. How many GRAMS of sulfur are present in 1.71 moles of sulfur tetrafluoride? 2. How many MOLES of…

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

Q: How many grams of carbon are present in 0.75 mole of aluminum carbonate

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Q: If there are 4.10 moles of H, how many moles of each of the compounds are present? H2SO4 C2H4O2…

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Q: moles

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Q: The number of water molecules in 2.3 mg of water is

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Q: Determine the molecular formula of a compound that has a molar mass of 92.0 g/mol and an empirical…

A: Consider the given information is as follows; Molar mass of the compound = 92.0 g/mol Empirical…

Q: number of moles in 5.50 × 10²³ formula units of MgBr₂

A: Given, 5.50 × 10²³ formula units of MgBr₂ We know, 1 mole = 6.023×1023

Q: Acetic acid, C2H4O2, gives the sour taste to vinegar. Calculate the moles of acetic acid present in…

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Q: Complete the table below for calculating the molar mass of the compound phosphorus triiodide. Molar…

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Q: Complete combustion of 6.70 g of a hydrocarbon produced 21.4 g of CO2 and 7.67 g of H2O. What is the…

A: Empirical formula :-  The simplest formula of a compound which shows only relative number of atoms…

Q: Determine the number of molecules present in 0.13 g of CH4.

A: Given : Mass of CH4 = 0.13 g Molar mass of CH4 = Atomic mass of C + Atomic mass of H X 4 = 12 + 1 X…

Q: A sample of C12H22011 contains 0.4662 moles of carbon atoms. How many moles of hydrogen atoms are in…

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Q: Ibuprofen has the molecular formula C13H1802. The number of moles of carbon atoms in 0.0325 mole of…

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Q: 4. Explain why an empirical formula can represent many different molecules. 5. Explain why 1 mol of…

A: Moles are the bigger unit which is then converted to molecules and then to atoms

Q: What is the molar mass of Mg3(PO4)2 ? O 150.3 g/mole O 71.28 g/mole O 214.3 g/mole MacBook A

A: The answer is given as follows

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.