lete the following tables. Molecules in Sample Total Atoms in Sample Mass of Sample Moles of Sample

Q: How many molecules are in a 0.572 mol sample of dimethylsulfoxide?

A:

Q: Determine the number of moles of -2 magnesium used. The atomic weight of .magnesium is 24.3 g/mole

A: Given information is as follows; Mass of Magnesium = 2 g Atomic weight of Magnesium = 24.3 g/mole…

Q: A 2.45g sample of strontium completley reacts with oxygen to from 2.89g of strontium oxide. What is…

A: Mass of Sr = 2.45 g  Mass of Strontium oxide = 2.89 g  Mass % =?

Q: 1) How many zinc (Zn) atoms are contained in 5.16 moles of Zn?

A: Mole is described as the amount of a substance which consist of  exactly the Avogadro number of…

Q: Calculate number of atoms in 30 g of lithium?

A: From given datas  As per Avogadro hypothesis we are calculating number of atoms of 30g of Li as…

Q: What are all the mole formulas such as, mole-mole, mole to liters, moles to grams, mass to mass,…

A: The formula for  mole-mole calculation has to give, A mole fraction indicates the number of chemical…

Q: References] Use the References to access important values if needed for this question a. How many…

A: 1 mol of boron trichloride (BF3) contains 1 boron(B) atom and 3 fluorine(F) atoms.

Q: Calculate the number of moles in sample. 72.5 g CCl4

A: Before solving this question we must know how to find number of miles.

Q: Label the diagram to correctly convert 159.8 of Br, to moles of Br2 : 79.9 Br2 : 159.8 g Br2 : 1 mol…

A: Final answer :- 2 mol of Br2

Q: How many moles of tin atoms are in a pure tin cup with a mass of 43.8 g ? v= ? mol

A: Mole concept:  According to Avogadro concept, the number of atoms in one mole of the substance is…

Q: 2. The rubbing alcohol was found to have 60% carbon, 13.4 % hydrogen, and the remaining percent by…

A:

Q: -1 Compound X has a molar mass of 135.12 g mol element carbon mass % 44.44% hydrogen 3.73% nitrogen…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: One mole of helium contains less molecules than 1 mole of Argon true or false?

A: Explanation as follows

Q: Consider 1.00 g of Copper (Cu) metal. How many Cu moles are present in this sample? How many Cu…

A: Since moles of element = mass of element / Atomic mass of element  Atomic mass of Cu = 63.5 g/mol…

Q: Determine the number of moles (of molecules or formula units) in sample. 25.5 g NO2

A: The given mass of NO2 = 25.5 g Molar mass of NO2 = 46 g/mol.

Q: Determine the number of neon atoms in a lamp that contains 20.17 g of neon gas sample.

A: Given mass of Neon gas = 20.17 g Number of atoms in given mass of Neon = ?

Q: A sample of carbon tetrachloride has a mass of 51.6 grams how many moles are contained in the sample

A: Number of moles of a substance can be determined using its mass and molar mass using the equation…

Q: 7. How many moles are in 50 grams of Platinum?

A: Ans:7  The number of moles of compound present in a given amount can be calculated by dividing the…

Q: Use the References to access Important values If needed for this question. 1. How many ATOMS of…

A:

Q: Determine the number of moles of HH in each sample.   4.70 mol H2O to mol

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

Q: Use the Referen 1. How many GRAMS of barium bromide are present in 1.91 moles of this compound? 2.…

A: The objective of the first question is to calculate the mass of barium bromide present in 1.91 moles…

Q: Which sample contains the greatest number of atoms. A sample of Kr that contains 5.33x1024 atoms or…

A: Avogadro's Number NA  => Avogadro's number, NA represents the number of atoms or molecules that…

Q: How many molecule are in 0.200 mole C13H18O2

A: Given, moles of C13H18O2 = 0.200 mole Number of molecules are in 0.200 mole of C13H18O2 = ?

Q: how to calculate moles of a substance from mass and molar mass (give the equation)

A: Number of moles of any substance can be calculated by the given mass of substance and molar mass of…

Q: How many molecules are in a sample of pure benzocaine, if a sample weighs 550mg?

A:

Q: 10) 9.50 x 102 atoms of C

A: Number of moles of the substance is equal to the ratio of number of atoms and Avogadro's number.

Q: 1. How many GRAMS of nitrogen are present in 4.54 moles of nitrogen monoxide ? grams. moles. 2. How…

A: Given, moles of nitrogen monoxide(NO) = 4.54 moles we can see that 1 moles of NO contains 1 moles of…

Q: Without doing any calculations, determine the sample will contains the greatest amount of the…

A: On knowing the masses of elements, which element have greater number of moles can be identified…

Q: How many O atoms are in your 0.825 mol sample of calcium nitrate?

A: In this question, moles of the compound are given. From that, an individual element is taken and 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.