Classify the types of matter below: Name Formula Picture  Atom (Y/ N) Molecule (Y/ N) Compound (Y/ N) How many elements are present? How many atoms are present? Carbon Monoxide CO             Helium He             Nitrate NO3             Graphite Cn             Calcium Ca             Ozone O3             Sulfuric Acid H2SO4             Chlorine Cl2             Arsenic As

Q: sample of the unknown compound was placed in a weighed drying pan and heated to give the data below.…

A: Given that the experimental data:   Mass of the drying pan m1= 1.445 g Mass of drying pan and…

Q: Which one is a FALSE statement? O The chemical formula CuBr2 indicates that this compound is…

A: We have to predict the false statement.

Q: A student, Ken, is given a mixture containing two carbonate compounds. The mixture includes MgCO,…

A: Given,

Q: other elements. alyzeu P₁, A similar analysis is made of three other substances that also only…

A: We are given Composition of Sample X (pure substance) comprising of Element E1 and element E2  We…

Q: fill out the table…

A: Molecular weight is sum of atomic masses of all atoms present in a molecule.We have been given 4…

Q: made-up compound: J2(QZ3)2 Determine the number of molecules of J₂(QZ3)2 in 7.2 grams of J₂(QZ3)2…

A: Given -> Weight of J2(QZ3)2 = 7.2 gram  Atomic mass of J = 19.00 g/mole Atomic mass of Q = 35.00…

Q: Consider the reaction 2NO(g) + O₂(g) →→→→2NO₂(g) Using the standard thermodynamic data in the tables…

A: Given : reaction and thermodynamic data

Q: A 1-carat diamond is pure crystaline carbon and has a mass of 0.200 g.Which contains more carbon…

A:

Q: The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Molar mass of any element is equal to the atomic mass of that element in the unit of grams. Molar…

Q: Calculate the total number of N atoms in 23.8 g N2O5. O 2.65 x 1023 total N atoms O 9.31 x1023 total…

A:

Q: 4) A 5.416 g sample that contained NaCl and BaCl2 2H₂O was heated. After heating the sample had a…

A: “Since you have posted a multiple questions we will solve the first question for you. To get the…

Q: How many grams of Pb2+ are presented in 2.65 grams of lead (II) nitrate?  How many grams of lead…

A: a) Pb2+ are presented in 2.65 grams of lead (II) nitrate = 1.66 gram b) grams of lead (II) nitrate…

Q: which of the following are nonelectrolytes? 1. HC2H3O2 (acetic acid) 2. C12H22O11 (sucrose, table…

A: Electrolytes are substances that dissociate into ions (positive and negative) when dissolved in…

Q: Co(NO3)2

A: a) First find out the moles of Co(NO3)2 :  moles = ( formula unit / Avogadro number )  Moles = (…

Q: The Millikan Oil Drop Experiment proved that... electrons have a positive charge. electric charge…

A:

Q: A sample containing NaCl, Na2SO4, and NaNO3 gives the following elemental analysis: Na: 35.635…

A:

Q: Elemental analysis of a compound with molar mass 214.22 g/mol gives the following mass percent…

A: Given data,Percent of C=72.89%Percent of H=4.71%Percent of O=22.41%Molar mass of…

Q: Identify composition of the substance with each formula as one of the four: molecular, ionic,…

A: The ionic bond is an electrostatic attraction force, formed between the ions and it is a strong…

Q: When methane is burned with oxygen the products are carbon dioxide and water. If you produce 36…

A:

Q: Fill in the blank. One mole of any atomic, ionic or molecular substance is it's respective atomic,…

A: The atomic mass of an element is equal to the mass of one mole of that element. The molecular mass…

Q: Calculate the mass in grams of 7.52 mol of allyl sulfide. Be sure your answer has the correct number…

A: First, we need to know the molar mass of allyl sulfide. We can calculate it as follows: Allyl…

Q: The correct result (indicating the proper number of significant figures) of the following…

A: To determine the correct result with the appropriate number of significant figures, we need to…

Q: A laboratory analysis of an unknown sample yields 73.13% carbon, 7.38% hydrogen, and 19.49% oxygen.…

A:

Q: 4 Part A Percent composition refers to the mass percent of each element in a compound mass percent ×…

A: Part A)To calculate the percent composition by mass of the hydrocarbon C7​H16​, we first need to…

Q: Titanium(IV) oxide is one of the best sunscreens because it completely blocks ultraviolet radiation…

A: mass of Ti = 23.5 gatomic mass of Ti = 47.87 g/molmolar mass of TiO2 = 79.87 g/mol

Q: Be sure to answer all parts. Enter your answers in scientific notation. Calculate the number of…

A: The compound given is Ca3(PO4)2. Mass of Ca3(PO4)2 given = 9.75 g Molar mass of Ca3(PO4)2 = Atomic…

Q: A molecule contains 16.623% hydrogen, 2.078% oxygen, and no other element except carbon. What is the…

A:

Q: How many oxygen atoms are present in 3.20 g of Al2(SO4)3? Express your answer in scientific notation…

A: The number of moles of a substance is calculated by dividing the given mass of that substance by its…

Q: the context is "Cosmone is a molecule used by fragrance manufacturers to provide a rich and elegant…

A: The solution is as follows:

Q: A student has been tasked to determine the percent water in thalium (III) nitrate, Tl(NO3)3 . xH2O.…

A: Thalium (III) Nitrate is a salt having the molecular formula Tl(NO3)3. In normal conditions, it…

Q: An analytical chemist measures the amount of Elements E₁ and E₂ in four samples of an unknown…

A: Since the unknown substance, X contains elements E1 and E2, it can be either a compound of E1 and…

Q: You analyze a sample of a compound you made in the lab and find that it has a percent composition by…

A: Answer: Empirical formula is C4H2O and three answers from the  given list are C4, H2, and O.

Q: 320 g of a certain chemical element contains 4.82 x 1024 atoms. Find the name of the element. MAr…

A: Given 320 g of a certain chemical element contains 4.82 x 1024 atoms

Q: What is the mass of 7.10 moles of magnesium chloride, MgCl2? Express your answer with the…

A: 1) The compound given is MgCl2 with moles = 7.10 mol Since molar mass of MgCl2 = Atomic mass of Mg +…

Q: Calculate the mass in grams of 2.84 x 1024 molecules of methanol. The chemical formula for methanol…

A: Given  Number of molecules of methanol = 2.84 × 1024 molecules  Chemical Formula of methanol      =…

Q: How is the molecular formula of a compound related to its empirical formula? They could be the…

A: Molecular formula can be defined as the chemical formula that represents true formula of the…

Q: 4. Determine the number of H atoms in 8.50 g of water.

A: As per your indication we solved the 4th question. Please find the below attachment

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.