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

Q: What is the formula mass of (NH4)2SO4?

A: Atomic mass of N=14 g/mol Atomic mass of H=1 g/mol Atomic mass of S=32 g/mol Atomic mass of O=16…

Q: A salt crystal has a mass of 0.20 mg, How many NaCl formula units does it contain?

A: Given:Mass of NaCl = 0.20 mg = 2.0x10-4 g.Molar mass of NaCl = 58.44 g/mol.

Q: How many total atoms are there in seven dozen molecules of nitric acid, HNO3?

A: Answer to question no. 5 (as mentioned); 1 molecule of nitric acid HNO3 contains 5 atoms ( 1 H, 1N,…

Q: The mass of a single iridium atom is 3.19×1072² grams. How many iridium atoms would there be in 339…

A: In order to do the calculation, we need to convert the mass in mg to g using the relation: 1 g =…

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 molecules are there in 3.2g methane ( CH4)

A: The number of moles in 3.2g methane is determined as,

Q: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The…

A: The concentration of any substance can be expressed in different ways such as molality, molarity,…

Q: How many atoms of hydrogen are there in NH4+?

A: Given-> (NH4)^+

Q: How many atoms are there in a 4.0-g copper coin?

A: Given: Mass of copper coin=4.0 g To find: Number of atoms

Q: Give the formula, name, and molecular mass of the following molecules:

A: a).  Formula-NO Name-Nitric oxide. Molecular mass=(mass of O+mass of N)…

Q: How many molecules of sulfur trioxide are in 78.0 grams?

A: Given , mass of SO3 = 78.0 g Molar mass of SO3 = 80.06 g/mol

Q: A drop of water has a volume of approximately 6×10−2 mL . How many water molecules does it contain?…

A: Relation between mass and number of molecules is:

Q: How many carbon atoms are there in a diamond (pure carbon) with a mass of 52 mg?

A: The number of carbon atoms can be calculated as follows,

Q: what is the emperical and molecular formula of these compound?  Given: molecular mass 70 g contains…

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: Which elements are normally present in organic compounds?

A: SOLUTION: Step 1: Organic compounds are a large class of chemical compounds in which one or more…

Q: Differentiate between Molecular and Ionic Compounds?

A: Interpretation: Molecular and Ionic compounds are to be differentiated.

Q: How many formula units are there in 31 grams of guanidine, CH5N37 (MW = 59.07 g/mol)

A:

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 calcium atoms are in 16.2 g of calcium?

A: The number of atoms in 16.2 g of calcium has to be given, We know that the atomic number of calcium…

Q: How many LiF formula units are there in 58g LiF

A: Formula units It is the molecular formula of a compound where least number of elements are present.…

Q: How many total atoms, elements, and molecules are in 8K2SO4?

A: The molecular formula of the molecule is K2SO4. The number of K2SO4 molecule is eight 8K2SO4.

Q: How many molecules of ammonia would there be in 22.7 grams of ammonia, NH3?

A: Given: Mass of ammonia = 22.7 g

Q: Determine the mass in grams of 5.77 × 10²¹ atoms of carbon.

A:

Q: How many total atoms are there in 67.9 g of water (H,O)?

A: Given: Mass of water = 67.9 g Known: Molar mass of water = 18 g/mol

Q: How many grams of K2C2O4, potassium oxalate, would containe 182 grams of pure potassium?

A: The molar mass of potassium oxalate can be calculated as:

Q: How many hydrogen atoms are in 29.85 g (NH4)2SO4?

A: Given :-  mass of (NH4)2SO4 = 29.85 g  To calculate :-  no. of H atoms

Q: The formula mass of ammonium phosphite (NH4)3PO3 is...?

A: The sum of the atomic mass of the atoms in the empirical formula of the compound is known as formula…

Q: How many atoms are there in 89 molecules of acetic acid?

A: The chemical formula of acetic acid is CH3COOH.

Q: How many oxygen atoms are in 33 molecules of dinitrogen tetroxide, N₂O₄?

A: How many oxygen atoms are in 33 molecules of dinitrogen tetroxide, N₂O₄?

Q: How many hydrogen atoms are in 5.360 grams of ammonium sulfate?

A: Ammonium sulfate = (NH4)2SO4 Given mass of ammonium sulfate = 5.360…

Q: Manganese(Mn) is a transition element essential for the growth of bones. What is the mass in grams…

A: Manganese is represented by atomic symbol Mn and it is a transition element. Also, it can be said…

Q: How many atoms are there in 350 g of arsenic?

A: Number of moles = mass/molar mass  1 mol = 6.022 × 1023 atoms

Q: How many hydrogen atoms are in 35 molecules of diborane, B₂H₆?

A: The molecular formula of diborane is B2H6. The structure of diborane is as follows:

Q: 5. How many formula units are there in 90.0 g of Mg(OH)2?

A: No of formula unit can be calculated by dividing the given weight and weight of one formula unit.

Q: How many formula units of magnesium chloride are there in 5.2 grams?

A:

Q: How many molecules are there in 10 grams of N2I6?

A:

Q: The formula for sulfur hexafluoride is . a. How many molecules are in 2.24 grams of sulfur…

A:

Q: atoms

A:

Q: How many sulfur atoms are there in 21.0 g of Al2S3?

A: Given information: Mass of Al2S3 = 21.0 g

Q: Define the term Formula Mass?

A: The sum of atomic masses of all the elements present in one formula unit of the substance is known…

Q: How many grams of chloride are there in 256 g of magnesium chloride?

A:

Q: 2) A piece of magnesium metal was placed in a test tube containing hydrochloric acid. If I start…

A: Magnesium reacts with HCl to give MgCl2 and H2. The Balanced equation of the following reaction is…

Q: How many atoms are in 41.0 grams of potassium?

A:

Q: - How many oxygen atoms are there in one formula unit of Ca2+?

A: Determine oxygen atom in formula unit of Ca2+?

Q: How many molecules is 9.88 x 10^13 grams of ZnCI2, zinc chloride

A: Avogadro number: It can be defined as by saying that the number of units in one mole of any…

Q: How many total atoms are there in 73.9 g  of methane (CH4)?

A: Given: Mass of methane, CH4 = 73.9 g.

Q: TRUE or FALSE A mole is the amount of a substance that contains as many elemental entities as…

A: Ans. TRUE The value of the mole is equal to the number of atoms in exactly 12 grams of pure…

Q: The indigo dye used to color blue jeans has the formula C6H1ON2O2. How many molecules of indigo are…

A: Given :- amount of C6H10N2O2 = 50.0 g  To calculate :- total number of C6H10N2O2 molecules

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.