a 2.558 g sample of sodium carbonate hydrate was heated to drive off the water resulting in 0.948 g of anhydrous sodium carbonate. Calculate the formula of the hydrate.

Q: Sorbose, C6H12O6, is used in making vitamin C. A sorbose sample contains 36.0 g of carbon atoms.…

A: Mass of carbon =36 g  Moles of carbon in sorbose=36 g ×1 mol12.01 g=2.9975 mol Moles of H atom can…

Q: Ammonia (NH3)(NH3) and hydrazine (N2H4)(N2H4) are both binary compounds of nitrogen and hydrogen.…

A: Ammonia is formed according to the following balanced Chemical equation-   N2 + 3H2   ---> 2NH3…

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

A:

Q: Nitrogen (N) and silicon (Si) form two binary compoundswith the following compositions:Compound…

A: (a) According to given information, in compound 1 the mass percent of N and Si is 33.28 and 66.72…

Q: What kind of chemical formula can be obtained from experimental data showing the relative masses of…

A: The formula obtained is:

Q: Napthalene is an aromatic organic molecule that contains 10 carbon atoms and 8 hydrogen atoms. a)…

A:

Q: Calculate the number of atoms in a 4.70×1034.70×103 g sample of lithium.

A: 1 mol of a sample contains 6.02×1023 atoms. Number of moles of sample can be determined using the…

Q: Vanadium forms four different oxides in which the percent by mass of vanadium is, respectively, (a)…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What mass of sulfur would be in a 124.56 g sample of sodium thiosulfate Na, S,0,?

A: The mass of sodium thiosulfate    is 124.56 g and its molar mass    is 158.11 g/mol.    now we…

Q: Determine the number of atoms in 21.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A:

Q: What is the empirical formula of a molecule containing four sulfur atoms and four fluorine atoms? A)…

A: Ans is B

Q: 1. Calculate the mass of carbon in a 1-carat diamond that contains 7.56 × 1022 atoms of carbon.

A:

Q: Samples of several compounds were decomposed, and the masses of their constituents elements were…

A:

Q: A chemist heats a 6.4 sample of hydrated calcium sulfate, and finds that in the process, 3.4 grams…

A: Given data Ammount of hydrated calcium sulphate = 6.4 g Amount of water vapour lost = 3.4 g Reaction…

Q: chemical formula

A:

Q: Calculate the number of atoms in a 8.97×103 g sample of lithium.

A: The value is given as follows:

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: The elements present in the compound are given as Be, S and O. Hence we can assume that the…

Q: A 10.724-g sample of an oxide of titanium was found to contain 7.143 g titanium, and the rest,…

A:

Q: An experiment requires that enough XeOF4 be used to yield 19.2 g of fluorine. How much XeOF4 must…

A:

Q: Determine the number of atoms in 47.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A: Number of mole(n)= weight(g)/(molar mass in g/mol) weight of Vanadium=47.0 g Atomic mass 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: A formula unit of potassium sulfide (K2S) would consist of what particles?

A:

Q: Caffeine, a stimulant found in coffee and soda, has the mass percent composition: C, 49.48%; H,…

A: GIVEN: The mass % of carbon= 49.48% The mass % of hydrogen=5.19% The mass % of nitrogen=28.85% The…

Q: 1. Upon heating, a 2.500 g sample of hydrated magnesium chlorate, Mg(CIO3)2 loses 0.903 g of water.…

A: Water of crystallization It is the fixed number of water molecules attached to each formula unit of…

Q: Enter your answer in the provided box. Assume the atomic mass of element X is 22.99 amu. A 13.75-g…

A:

Q: Vanadium forms four different oxides in which the percent by mass of vanadium is, respectively, (a)…

A:

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

A: SO3 is an acidic oxide.

Q: Calculate the mass of each sample. a. 1.05 × 10²26 atoms of neon, Ne(g)

A: 1 mole of atom = 6.022 × 1023 atoms

Q: -If you had 2.00 x 1024 atoms of Na, how many moles would you have?

A:

Q: Calculate the number of atoms in a 9.06×1039.06×103 g sample of strontium.

A: Calculate mole= mass/molar mass  Then atoms=mole×avagadro number

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

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

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: A sample of trifluoroacetic acid, C,HF,02, contains 25.3 g of fluorine. Calculate the mass of the…

A: One molecule of C2HF3O2 contains 2 atoms of carbon, 1 atom of hydrogen, 3 atoms of fluorine and two…

Q: How many atoms are present in 44.96 g of

A: Mass of scandium = 44.96 g Molar masa(MM) of Scandium = 44.96 g/mol Moles = mass/MM  = 44.96/44.96 =…

Q: Calculate the number of atoms in a 8.41×103 g sample of carbon.

A:

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: Calculate the mass of 700 atoms of nitrogen (N).

A: Given, number of nitrogen(N) = 700 atoms we are asked to calculate the mass of 700 atoms of…

Q: Calculate the number of atoms in a 9.03×103 g sample of sodium.

A:

Q: In the Star Wars series, the death star is a spherical space station and weapon with a diameter of…

A: The diameter of death star is 99 miles. The diameter of solid iron sphere is 5.81 times larger than…

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Empirical formula is the simplest ratio of the elements present in the given molecular formula.…

Q: Determine the number of atoms in 33.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A: Given is,  Mass of vanadium = 33.0 g Molar mass of Vanadium = 50.94 g/mol

Q: formula of the hydrate

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

Q: A 1.512-gram sample of aluminum metal was burned in the presence of oxygen gas, forming 2.857 grams…

A: Given,  1.512 g of Aluminium burns in oxygen gas to give 2.857g of binary oxide.

Q: How many atoms of carbon are th

A:

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: Calculate the mass of 1.00×10241.00×1024 (a septillion) molecules of wate

A: We know that there are two hydrogen atoms and one oxygen atom for every H20 molecule. So, the molar…

Q: 1. Calculate the number of moles AND the mass in grams of a sample of Neon containing 2.790 X 1025…

A:

Q: From this data, what empirical formula of magnesium oxide.

A: Mass of oxygen added = 35.1556 - 35.0079 g Mass of Oxygen = 0.1477 g Moles of oxygen = mass / molar…

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.