a 15.79g sample of a hydrate of an iron(ii) sulfate compound was heated, without decomposing the sulfate to dive off the water. the mass was reduced to 8.63g. what is the formula of the hydrate

Q: Consider Titanium. It is a metal with the same strength as steel, but it is 45% lighter. It is also…

A: The molar mass of titanium is 47.867g/mol Thus, the mass of 1 mol of titanium is 47.867g

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: The insecticide dieldrin contains carbon, hydrogen,oxygen, and chlorine. When burned in an excess…

A: Given, a 1.510 g sample of insecticide dieldrin on burning yields 2.094 g CO2 and 0.286 g H2O.…

Q: A chromium-containing compound has the formula Fe,Cr,O, and is 28.59% oxygen by mass. Findx and y.

A:

Q: How many grams of water (18.02 g/mol) would contain 6.54x10^24 hydrogen atoms?

A: Given :Molar mass of water = 18.02 g/molNumber of H-atoms = 6.54 x 1024We need to calculate the…

Q: A chromium containing compound has a formula FexCryO4 and is 28.59% oxygen by mass  Find x and y

A: Given, mass percentage of O in FexCryO4 = 28.59%Molar mass of 4 O in FexCryO4 = 4 × 16 g/mol = 64…

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: A 2.45-g sample of strontium completely reacts withoxygen to form 2.89 g of strontium oxide. Use…

A:

Q: In a 6.43E1 g sample of NaHCO, how many grams of sodium are present? Use two decimal places in…

A: Mass of NaHCO3 = 6.43E1 = 64.3 g

Q: Aluminum reacts with oxygen to form aluminum oxide, Al2O3.  Set up the calculation and solve for the…

A: The balanced chemical equation that describes the formation of aluminum oxide can be shown as…

Q: the number of copper atoms in a 3.0g lump of copper is 2.8x1022. how many electrons are present  in…

A: the number of copper atoms in a 3.0g lump of copper is 2.8x1022.  The number of electrons present in…

Q: A sample of hydrated aluminum sulfate wing 2.954 g was given to a student to be used in the water of…

A: Assuming the formula of hydrated aluminum sulfate is Al2(SO4)3 . yH2O where y = number of water…

Q: Consider a sample of calcium carbonate in the form of a cubemeasuring 2.005 in. on each edge. If the…

A: Given: Edge length of the cube(Calcium carbonate) =2.005 inch Density of sample= 2.71 g/cm3 To…

Q: A certain compound X is composed of 70.53% carbon, 13.02% hydrogen, and the remainder is nitrogen.…

A: Given values: Percentage of carbon = 70.53 % Percentage of hydrogen = 13.02 % Percentage of nitrogen…

Q: given a 81.9 mol sample of Ne, how many atoms are present?

A: 6.023 × 10^ 23 is called Avogadro's number. One mole of any substance contain Avogadro's number of…

Q: A toy top has a mass of 32.0 g Cu. How many atoms Cu are in this spinning top, given that the…

A: We know , in 1 mole of any atoms , there is avogadro number of atoms i.e. 6.022×1023 number of…

Q: What is the percent by mass of chromium (atomic mass = 52.00 g/mol) in Cr2S3 (mm = 200.20 g/mol)?…

A:

Q: Calculate the mass % of O in calcium periodate

A: The molecular formula of calcium periodate is Ca(IO4)2.  We know the molar mass of calcium…

Q: The recommended daily allowance(RDA) of selenium in your diet is 8.87 × 1 0 -4 mol. Howmany atoms of…

A: The number of atoms from the given number of moles can be calculated as the product of number of…

Q: A toy top has a mass of 32.0 |g Cu . How many atoms Cu are in this spinning top, given that the…

A: Given, mass of copper (Cu) =32.0 gatomic mass of copper (Cu) =63.55 gmolwe are asked to calculate…

Q: A 1.628-g sample of a hydrate of magnesium iodide isheated until its mass is reduced to 1.072 g and…

A: Given data mass of sample  = 1.628  g mass of sample after heating = 1.072 g…

Q: A compound is made by carbon, hydrogena and nitrogen and 1 g of this compound contains 91.5 mg of…

A: To write the molecular formula of the compound, the number of moles of each element should be…

Q: A 41.8mg sample of carbon reacts with sulfur to form 116mg of the compound carbon sulfide. What is…

A: Mass of carbon used = 41.8 mg = 0.0418 g Molar mass of carbon = 12 g No. of moles of carbon used =…

Q: Determining the Formula of a Hydrate #1: A 15.67 g sample of a hydrate of magnesium carbonate was…

A: Given :  Mass of sample of a hydrate of magnesium carbonate = 15.67 g Mass of sample after drying it…

Q: An 85.00 g sample of an unknown compound contains 24.26 g molybdenum, 24.33 g sulfur, and the rest…

A: Given,  Mass of the compound = 85.00 g  Mass of molybdenum = 24.26 g  Mass of sulfur = 24.33 g  Mass…

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

A: For a compound consisting of two components A and B, mass% of A abd B are related to each other as…

Q: 4. A 1.628-g sample of a hydrate of magnesium iodide is heated until its mass is reduced to 1.072 g…

A: Answer :- MgI2.8H2O The formula of given Hydrated Magnesium iodide = MgI2.8H2O…

Q: Calculate the formula mass of barium iodite, Ba(IO,),, in atomic mass units (amu or u). formula…

A:

Q: in a 63.17 gram sample of sulfur trioxide, how much of it is sulfur?

A: SO3 is an acidic oxide.

Q: An oxide of the element M has the formula M207 and it is known from experiments that 1.000 gram of M…

A:

Q: A toy top has a mass of 32.0g Cu. How many atoms Cu are in the spinning top, given that the average…

A: Given information: Mass of Cu = 32.0 g Molar mass of Cu = 63.55 g/mol

Q: A 0.933 g sample of Nickle metal is heated in the presence of nitrogne gas forming 1.081 grams of a…

A:

Q: The scuba tank of oxygen gas weighs about 16 kg. How many atoms of oxygen gas (O2) are there in the…

A: Molar mass of oxygen gas(O2) is 32 g/mol

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: c- The formula for water is contains .. (... x1+...X 16 =....) D- the combustion of fuels is…

A: Water is a compound and is made of Hydrogen and oxygen. Chemical reactions are of various types-…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: We have to calculate molar mass of metal and it's identity.

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: 4. If the manufacturer of Remdesivir has access to 1394 g of phosphorus atoms, how many grams of…

A: The chemical formula of Ramdesivir: C27H35N6O8P. The given mass of phosphorus atoms = 1394 g Atomic…

Q: A mole of lithium atoms has a mass of 6.941g. What is the mass in grams, of a single lithium atom?

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

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: mass

A: 0.415 mol sample of MnX2O7 has a mass of 85.14 g.  What is X?

Q: A sample of hydrate of copper(II) sulfate is found to contin 36.08% by mass water. What is the…

A: Molar mass of copper sulfate = 159.6 g/mol Molar mass of water molecule = 18 g/mol Molar mass of…

Q: How many atoms of chlorine (CI) are present in 0.072 g of FeCI,? Given that ; Fe= 56 g /mol, Cl=…

A: Given that mass of FeCl = 0.072 g Molar mass of Fe = 56 g/mol, Cl = 35.5 g /mol Hence, molar mass of…

Q: Two binary oxides of the element manganese contain, respectively, 30.40% and 36.81% oxygen by mass.…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: formula of the hydrate

A: When a hydrous salt is heated, it loses the water of crystallization. Water of crystallization =…

Q: A metal alloy containing 67% (by mass) lead and having a density of 9.4 g/cm3 . If the second metal…

A: Given Information -  mass % of lead,Pb= 67%  mass % of tin = 100% - 67% = 33%  mass of lead = 67 g…

Q: To prevent the presence of air, noble gases are placed over highly reactive to act as inert…

A: The partial pressure of a gas in a mixture of gases is equal to the total pressure multiplied by the…

Q: What is the representative particle, mass(g), no. of particles of carbon dioxide

A: 1mole of any substance contains 6.023*1023 molecules or particles, it is also called one avagadros…

Q: b) What is the molecular formula given that its mass is 121 g. ( to

A: Given;

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.