How many carbon atoms are in 259.42 grams of pentane?

Q: How many hydrogen atoms are in 790.58 grams of propane?

A: The moles of a substance is the mass of the substance which has equal quantity of basic units. The…

Q: How many atoms of carbon are present in 9.90 g of carbon tetrachloride?

A: The number of moles of CCl4 can be calculated using the following equation: Number of moles=given…

Q: How many formula units are there in 35.5 g of calcium chloride?

A: This question can be solved by the following equation: Number of formula units = (Weight/Molar mass)…

Q: How many total atoms are in 78.6 g of iron (II) chlorate?

A:

Q: ow many moles of H2O does 1.2 x 1024 molecules represent?

A: Given,  1.2 x 1024 molecules of H2O

Q: An aspirin tablet contains 325.0 mg of aspirin, which has the molecular formula, C9H8O4. How many…

A: Given:Mass of aspirin = 325 mg = 0.325 g.

Q: How many molecules of carbon tetrabromide are present in 2.14 moles of this compound?

A: actually, 1 mole of Carbon Tetrabromide ( CBr4 ) contains avogadro's number of molecules .  means…

Q: Does a mole of Ag (107.9 g) contains the same number of atoms as a mole of Na (22.99g).

A: You have given one mole of both Ag and Na.

Q: If a fertilizer contains 14.0% nitrogen by mass, how many grams of nitrogen are in 4.15 kg of…

A: fertilizer contains of 14.0% nitrogen  mass of nitrogen = 4.15 kg  We have calculate the how many…

Q: how many chlorine atoms are in those 20.3 grams of carbon tetrachloride?

A:

Q: How many moles are there in 6.54 molecules of methane

A:

Q: how many molecules of acetylene (C2H2) are in 1.79 moles of acetylene?

A: We know that according to mole concept., Number of molecules in one mole = Avogadro Number =…

Q: How many MOLECULES of sulfur hexafluoride are present in 7.79 grams of this compound ?

A: Solution The mole idea may be a convenient methodology of expressing the quantity of a substance.…

Q: How many atoms of C are present in 52 grams of sugar C6H12O6?

A:

Q: How many hydrogen atoms are in 27 molecules of diborane, B₂H₆?

A: The molecular formula of diborane is B2H6 We need to find number of hydrogen atoms present in 27…

Q: How many GRAMS of dioxygen difluoride are present in 4.95×1022 molecules of this compound ?

A: Number of molecules of O2F2 = 4.95×1022

Q: How many atoms are in 76.9 g of lithium hypochlorite (LiClO)?

A: Answer:In the 1 mole sample of a substance number of particles are always equal to Avogadro number…

Q: How many carbon atoms are in 53.62 grams of nonane.

A:

Q: Sylvanite is a mineral that contains 28.0% gold by mass. How much sylvanite would you need to dig up…

A: Given, mass % = 28.0 % Mass of gold obtain = 94.0 g Mass of sylvanite needed = ?

Q: Determine the number of molecules present in 0.560 g of CH4.

A: Given data contains, Mass of methane=0.560 g. Molar mass of methane=16.04 g/mol

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: What is the percent by mass of carbon

A: Percent by mass = (mass of C/total mass of compound) × 100%

Q: An unknown compound contains 53.34% rhodium, 9.338% carbon, and the rest is oxygen. a) If you assume…

A: Given a compound with the composition: Rh = 53.34 % C = 9.338 % O = 100 - (53.34 + 9.338) % = 37.322…

Q: How many carbon atoms are in a 1.21 carat diamond? 1 carat = 200 mg (exactly)

A: Given, mass of diamond = 1.21 carat  1 carat = 200 mg  we are asked to calculate that how many…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

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

Q: How many atoms are in 55 grams of Aluminum (Al)?

A: Given , Mass of Al= 55 g Molar mass of Al= 26.982 g/mol Avogadro's number= 6.022×10^23

Q: How many molecules are in 13.4 grams of sulfur hexachloride?

A:

Q: 1. How many MOLECULES of tetraphosphorus decaoxide are present in 4.49 grams of this compound…

A:

Q: How many moles of C are there in a sample that contains 6.54×1022 carbon atoms? How many carbon…

A: The objective of the question is to find out the number of moles of carbon in a given sample and the…

Q: How many moles are in 33.0 g of Se? How many atoms of N are in 5.6 g of N?

A: Given :-  Mass of Se = 33.0 g  Mass of N = 5.6 g  To calculate :-  i) no. of moles of Se  ii) number…

Q: How many atoms are in 73.3 g of sodium sulfate (Na2SO4) ?  It says there are seven atoms in a…

A: Applying concept of mole and avogadro concept.

Q: How many molecules of NaOH are there in 20.0 grams of NaOH?

A: Atoms are made up of electrons, protons and neutrons. Protons are positively charged particles,…

Q: how many molecules are in 20.3 grams of carbon tetrachloride?

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

Q: How many molecules are in 119.78 g of butane (C4H10)?

A: Mass of butane = 119.78 g  Number of molecules of butane = ? • Number of moles = mass / molar mass…

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

A:

Q: 1. How many MOLECULES of disulfur decafluoride are present in 5.24 grams of this compound? 2. How…

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

Q: how many atoms are in 102.1 g of sodium?

A:

Q: How many moles of acetone (C3H6O) are in 135 grams of acetone?

A: Given : Mass of C3H6O = 135 g

Q: 1. How many MOLECULES of sulfur hexafluoride are present in 5.03 grams of this compound? 2 How many…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: Determine the number of molecules present in 0.31 g of CH

A: The number of molecules, atoms, or compounds present per mole of a substance is Avogadro's number.

Q: How many calcium atoms are in 62.8 gg of calcium?

A: Given mass of Calcium =62.8 gram  Number of calcium atom =?

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.