Čalculate the number of hydrogen atoms present in 12.30 x 102 dekagrams of strontium hydrogen sulfate heptahydrate.

Q: Determine the number of moles in 2.42 × 10²³ formula units of BaBr₂.

A: Formula units of BaBr2 = 2.42 x 1023  Moles of BaBr2  = ?

Q: Calculate the number of boron atoms in a  100.0g  sample of tetraborane  B4H10

A: Mass of B4H10 = 100.0 gNumber of boron atoms = ?

Q: Determine the number of moles in 1.83 x 1023 formula units of BaCl2.

A:

Q: Determine the number of moles in 3.42 × 10²³ formula units of MgBr₂.

A: The objective of this question is to calculate the number of moles in a given number of formula…

Q: Complete the table. Element Moles Mass Cr 0.00442 Fe 73.5 mg Ti 1.009 x 10-3 Hg 1.78 kg

A: Mole is represented by the symbol mol. It is unit of measurement of substance. Mass is defined as…

Q: Determine the number of moles in 1.19 × 10²³ formula units of MgCl₂.

A: It is known that one mole of a substance is equal to 6.022×1023 formula units of that substance…

Q: Calculate the number of grams in 2.72 x 10^21 formula units of sodium nitrite

A:

Q: How many moles of hydrogen are in 3.06 × 10⁻³ g of glycine C₂H₅NO₂?

A: Introduction: Mole is the fundamental (SI) unit that is used to measure the amount of substance. By…

Q: Calculate the number of moles of potassium hydrogen phthalate (abbreviated KHP, chemical formula is…

A:

Q: To what pH should a solution that is 0.072 M each in Ca²+ and Cd²+ ions be adjusted in order to best…

A: Solubility product:- Solubility product is defined as the product of concentration (in g/l) of the…

Q: 5.5×10^24

A: Please find the file attached for explanation

Q: How many moles of carbon dioxide are present in 1.03x10^23  molecules of this compound?

A:

Q: How many Oxygen are in 6.913x10^23 molecules of nitroglycerin C3H5N3O9?

A: Given question is checking our mole concept principal. In this question, number of molecules of…

Q: Calculate the moles of Fe in 4.16x10^22 atoms of Fe

A: Given, number of Fe atoms = 4.16 × 1022 atoms  we know,  => moles of Fe = number of Fe atoms /…

Q: Complete the table below for calculating the molar mass of the compound disulfur decafluoride.

A: We have given a compound disulfur decafluoride. We have to complete the given table for calculating…

Q: How many moles are contained in a sample of aluminum oxide, Al2O3, that weighs 20.4 grams? Convert…

A:

Q: How would your calculation of the average number of water molecules present in the Epsom salt be…

A: This problem is from the experiment of Gravimetric Determination of the water of hydration of Epsom…

Q: Calculate the number of moles of 5.65*10^15 atoms of  ^3H

A: The SI unit or the measure for the amount of substance is called Mole. “1 mole is equal to Avogadro…

Q: Determine the number of moles in 5.00 × 10²³ formula units of BaBr₂.

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

Q: Calculate the moles of glucose in 1.0253 g of glucose, C6H12O6. Then calculate the moles of each…

A: Given :-  Mass of glucose = 1.0253 g  To calculate :-  Number of moles of glucose and also determine…

Q: What is the mass, in grams, of 7.70×1020 molecules

A:

Q: Write the empirical formula corresponding to Al₂Br₆

A: The empirical formula of a chemical compound is the simplest positive integer ratio of atoms present…

Q: Calculate the number of moles in 9.364 x 1018 atoms of Ca

A:

Q: Calculate the number of grams of sodium in 2.20 g of each sodium-containing food additive.

A: Sodium benzoate NaC7H5O2 Number of moles of a substance can be expressed as: Given mass of sodium…

Q: Calculate the mass in grams of 4.46×1024 molecules of propylamine. The chemical formula for…

A: Avogadro constant = 6.022 × 10²³ /mol The moles of propylamine can be calculated asNo. of moles of…

Q: Convert 5.17x10^24 atoms of O2 to mol

A:

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Given ,Mass spectroscopic analysis of ruthenium .Objective : Calculation of average atomic mass ,…

Q: Calculate the mass of 8.4 x 1 0 24 molecules of carbon dioxide (dry ice) (Hint: first calculate the…

A:

Q: Holy many moles of CO2 are contained in 42.0 x 1024 molecules of CO2?

A:

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 mass percent of fluorine in C₂Cl4F₂? 11.78% 5.893% 9.323% 18.65% 69.58%

A:

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: Determine the number of moles in 5.73 × 10²³ formula units of CaCl₂.

A: 1 mole = 6.022 x 1023 entities

Q: 7. x = 4 atoms 1 mole 6.02 x 1023 atoms 23g 1 mole

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

Q: Number of atoms of Carbon in 18 moles of C4H10 are: 433.58x10^23 7.48x10^23 O 108.40x10^23…

A: The number of moles of a compound can be obtained by Avogadro's number. It can be calculated as…

Q: Pure HN3 (atom sequence HNNN) is explosive. In aqueous solution, it is a weak acid that yields the…

A: Ammonia molecule is a weak acid with two resonance structures.  They are given as,

Q: Determine the number of moles in 4.99 × 10²³ formula units of BaBr₂.

A: Given :- number of formula units of BaBr2 = 4.99 × 1023 formula units  To determine :- number of…

Q: How many atoms of flourine are in 5.6×10^23 molecules of MgF2?

A: Given  Number of molecule of MgF2   =  5.6 × 1023 Number of atom of fluorine      =   ?

Q: How many moles of carbon dioxide are present in 3.77x10^22 molecules of this compound?

A: Applying mole concept and avogadro number.

Q: Calculate the number of atoms of iodine in a 5.25×106 g5.25×106 g sample of iodine.

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: number of formula units

A:

Q: Determine the number of moles in 1.25 × 10²³ formula units of CaCl₂.

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Determine the number of moles in 4.21 × 10²³ molecules of CaCl₂

A: The mole is an amount unit that provides   measure of the number of atoms or molecules in a bulk…

Q: This is the chemical formula for hexanal: CH3CH24CHO. Calculate the mass percent of hydrogen in…

A: Molecular Formula of hexanal is C6H12O  And Molecular weight of hexanal is 100.1568 g/mol  Complete…

Q: Determine the number of hydrogen atoms in one mole of H₂O2. 3.01 x 1023 2.408 x 1024 5.2 x 1022 6.02…

A: An atom is a particle that contains protons and neutrons and is surrounded by electrons.

Q: Determine the number of moles in 4.74 × 10²³ formula units of MgCl₂.

A: Given, 4.74 × 10²³ formula units of MgCl₂

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.