A 4.00 gram sample of hydrate of nickel(II) bromide loses 0.793 grams of water when heated. Determine the mass percent water in the hydrate and the formula of the hydrate

Q: Calculate the mass if dinitrogen tetroxide that contains a million nitrogen atoms

A: Molar mass of dinitrogen tetroxide is 92.011 g/mol

Q: This question pertains to ammonium bicarbonate. A) Estimate the mass percentage of oxygen in…

A: Molar mass of ammonium bicarbonate (NH4HCO3) = 79.056 g/mol  Mass of 1 mol ammonium bicarbonate…

Q: A nitrogen oxide is 63.65% by mass nitrogen. The molecular formula could be

A:

Q: For each compound, list the correct formula and calculatethe formula mass.(a) tin(IV) sulfate(b)…

A: For the given compounds the correct formula and formula mass has to be given. since, you are asked…

Q: 1. S divide a cry sepelote to finally divide a 2 Define the following terms. atom moleculeS the that…

A: The following definitions are given below:

Q: Anthracite is a type of coal that is composed of carbon with small amounts of hydrogen, oxygen,…

A:

Q: A 0.997 gram sample of chromium combines with 0.179 grams of nitrogen to form a binary nitride…

A: Given data,Mass of Cr=0.997gMass of N=0.179g

Q: Determine the number of each type of atom in formula. CuSO4

A: Given: CuSO4

Q: A 4.78-g sample of aluminum completely reacts withoxygen to form 6.67 g of aluminum oxide. Use this…

A: Mass percentage or percentage by weight is one of the concentration terms that indicates the mass of…

Q: Analysis of a 29.1 g sample of water revealed a mass percent for lead of 4.35%. Calculate the number…

A: Mass percent of lead is equal to the mass of lead divided by the mass of water multiplied by 100.

Q: a 2.558 g sample of sodium carbonate hydrate was heated to drive off the water resulting in 0.948 g…

A: The substance which contains water or its constitute element is known as hydrate.

Q: How many bromine atoms are contained in 8.94 moles of bromine molecules?

A: Given :-  Number of moles of Br2 = 8.94 mol  To be calculated :-  Number of Br atoms

Q: Magnesium oxide contains 50.3 % magnesium by mass. Calculate the mass of magnesium oxide sample if…

A: Mass percent of an element expressed as the percentage ratio of mass of an element to the mass of a…

Q: 9. A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated.…

A:

Q: a certain compound contains 54.0 g or carbon and 10.5g of hydrogen. its relative molecular mass is…

A: Given,54.0 g of carbon and 10.5g of hydrogen.The molar mass of this compound is 86 g/mol.Molar mass…

Q: How many atoms of each element are in a formula unt of Magnesium Phosphate?

A: Ionic compound  Ionic compound composed of cation which is positively charged (+charge) and an anion…

Q: Determine the mass of oxygen in a 7.20g sample of aluminum sulfate.

A: Given, mass of Al2(SO4)3 = 7.20 g mass of O = ?

Q: Calculate the number of oxygen atoms in a sample that has a mass of 288 amu

A: 1 oxygen atom has mass 16 amu or 16 amu is a mass of one oxygen atom. To calculate number of oxygen…

Q: A 24.8 g sample of water contains how many water molecules?

A: Molar mass of water = 18 gWe have 24.8 g water no of moles of water = 24.8 g18g/mol…

Q: Use Dalton’s theory to explain why potassium nitrate from India or Italy has the same mass percents…

A: Use Dalton’s theory to explain why potassium nitrate from India or Italy has the same mass percents…

Q: Describe the formation of solid potassium sulfide (K₂S) fromlarge numbers of potassium and sulfur…

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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: calculate the mass of a sample that contains 23 nitrogen atoms

A: Mole is the unit for the number of atoms or molecules of a material. One mole = 6.022×1023 molecular…

Q: A formula unit of potassium sulfide (K2S) would consist of what particles?

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Q: A 21.8 g sample of water contains how many water molecules?

A:

Q: How many particles of Glucose (C6H1206) are in a 0.25g sample. Round periodic table average atomic…

A: Given, Mass of glucose sample = 0.25 g Chemical formula of glucose = C6H12O6 Molecules or particles…

Q: A compound consists of carbon and hydrogen. The molar mass of this compound is 44.1 g/mol. The…

A: Molecular formula of any compound can be determined by knowing the number of moles of each element…

Q: A 2.865 g sample of Iron (III) Chloride hydrate FeCl3∙xH2O was heated at 150°C until a constant mass…

A: GivenMass of FeCl3 .XH2O (Hydrated Sample) = 2.865 gMass of Dehydrated sample =FeCl3  = 1.719 gMolar…

Q: Analysis of a 39.8 g sample of water revealed a mass percent for lead of 4.87%. Calculate the number…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: Calculate the formula mass of calcium carbonate.

A: The sum of atomic weights of the atoms present in the empirical formula of a compound is said to be…

Q: Calculate the formula mass of ammonium nitrate.

A: Ammonium Nitrate is made of Cation Ammonium ion i.e. NH4+ and Anion Nitrate ion i.e. NO3- .…

Q: If you have 72 g of sodium sulfate, calculate the sodium, sulfur, and oxygen atoms that are present…

A: Formula of sodium sulfate - Na2SO4 Molar mass of sodium sulfate - 142.04 g/mol Avogadro's constant -…

Q: Use Dalton’s theory to explain why potassium nitrate fromIndia or Italy has the same mass percents…

A: Given Use Dalton’s theory to explain why potassium nitrate from India or Italy has the same mass…

Q: A 15.6 g sample of magnesium carbonate contains 3.2 g of magnesium. What is the percent Magnesium in…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: What are units that comprise a molecular compound?

A: A compound is defined as the chemical substance that is made by the combination of two or more than…

Q: One mole of contains the largest number of atoms. A) S8 B) C10H8 C) Al2(SO4)3 D) NazPO4

A: Number of moles of any substance can be calculated with the help of molar mass of the substance and…

Q: On average, a 1.3 gram tablet has 500. milligrams of calcium carbonate. What is the mass/mass…

A:

Q: A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76%…

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

Q: how many atoms are in 0.193 kilomoles of sulfur

A: Given: Moles of sulfur = 0.193 Kilomoles = 193 moles.

Q: TNT as shown in figure is used as an explosive in con-struction. Calculate the mass of each element…

A: The molecular formula for TNT is C7H5N3O6 . Given mass of TNT = 1 lb = 453.592 gms Molar mass of TNT…

Q: sample of eugenol contains 9.36x10^23 Hydrogen atoms. How many molecules of eugenol are in the…

A: Given : no.of H atoms = 9.36 × 1023 atoms  To calculate :- no.of eugenol molecules in sample

Q: A 43.0 g sample of hydrated cobalt (II) sulfite is heated resulting in anhydrous cobalt (II) sulfite…

A: We have given that   A 43.0 g sample of hydrated cobalt (II) sulfite is heated resulting in…

Q: st needs 1.25 moles of sugar io dissolve in 1 liter of water. How many grams of sugar will the…

A: 1) Number of moles = 1.25moles  Molecular mass of sugar = 180g/mol Number of moles = Mass of sugar/…

Q: 3. A mixture of Calcium carbonate and ammonium carbonate is 61.9% carbonate by mass. Find the mass…

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Q: if something only contains Hydrogen and Oxygen. Analysis of a 5.00 g sample of this sample of this…

A: Amount of any substance can be calculated in any compound by using amount of other substances…

Q: A 0.700 g sample of a compound of arsenic and oxygen was found to contain 0.530 g of arsenic. What…

A: the imperical formula of a compound is the chemical formula which expresses the simplest whole…

Q: How many Zinc atoms are in 100g sample of Zinc?

A: Number of atoms in the given sample of an element are calculated by using the molar mass of the…

Q: This is the chemical formula for lead(II) nitrate: Pb(NO;); Calculate the mass percent of nitrogen…

A: The given chemical formula for lead(II) nitrate is as follows: PbNO32 The mass of percent of…

Q: the mass percent of magnesium in MgSO4.

A:

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.