a. How many carbon atoms are in the sam b. How many hydrogen atoms are in the s c. How many oxygen atoms are in the sam

Q: Q2: How many grams of 23•4 6 by mass NaF SoNis heed 1:33 mol of Nat you wannă have MASS of Sot

A: The mole of NaF is = 1.33 mole The mass percent of the NaF solution is = 23.4 % The needed mass of…

Q: D what is the mass of aluminunm Oxide Hoti9e almoD produced fom 174a AGn ganose (N) oxide cole a4…

A: Mass of MnO2 = 1.74 g  We need to determine mass of Al2O3 formed.

Q: In a lab experiment, 7.64 g of phosphorus reacts with bromine to form 66.77 g of phosphorus…

A: law of constant composition:-  a chemical compound always contains its constituent elements in fixed…

Q: a. Oxalic acid is a crystalline solid with the molecular formula H2C2O4. A sample of pure oxalic…

A:

Q: [Review Topics] [Relo Use the References to access important values If needed for this ouestton A…

A:

Q: mass

A: moles of Compound = ( mass of Compound / molar mass of Compound )  Mass of the Compound = moles of…

Q: A 94.8 g sample of Fe;O4 reacts with 17.39 g of CO to form FeO and CO2. FegOals) + COlg)-- 3FEO(s) +…

A: Given chemical reaction :  Fe3O4 + CO ---> FeO + CO2

Q: A 2.63 g2.63 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A:

Q: S Ina 3.7-gram sample, there are (A) 1.1 x 10 atoms of gold (B) 3.2 x 1025 atoms of gold (C) 4.4 x…

A:

Q: Which statement is probably true concerning themasses of individual chlorine atoms: All have,…

A: The correct statement regarding the masses of individual atoms of chlorine has to be determined.

Q: What came first? protons neutral Atoms or nuclei? which came second?

A: Given What came first? protons neutral Atoms or nuclei? which came second?

Q: 12 (a) Calculate the # of moles of the alement present in 99.9 g of nickel (b) Calcolate the mass in…

A: Given a) Mass of Ni             = 99.9 g b) No.of moles of Ni = 0.251 mol c) No.of moles of Ni  =…

Q: A mixture of 130.5 g of P and 134.8 g of O, reacts completely to form P¸O, and PO10. Find the masses…

A: Given - Grams of P = 130.5 g Grams of O = 134.8 g This means that 8 moles of P reacts with 8 moles…

Q: 1.25 moles of PbO2 have a mass of

A: Given  Number of mole of PbO2  = 1.25 mole  Mass = ?

Q: 2. A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: a. Given that: Mass of sugar = 9.00 g. Molar mass of C12H22O11 = 12×12 + 22×1 + 11×16Molar mass of…

Q: ow many total atoms of Ba I ow many total atoms of N ow many total atoms of O ow many total atoms of…

A: Solution- In the below given -  Total atoms of Ba = 3 Total atoms of N =  6 Total atoms of O = 26

Q: Two thirds of the atom in a molecule of water is hydrogen. What percentage weight of a water…

A: Given: Hydrogen atoms in a water molecule = 2/3 Atomic weight of hydrogen = 1.008 g/mol Atomic…

Q: Find: a) what% by mass of oxygen are in 60 grams of NH4NO3 b) how many hydrogen atoms are in 60…

A: The answer to the following question is-

Q: (a) Determine the number of oxygen atoms and hydrogen atoms in1.00 kg of water. (b) Calculate the…

A: (a) Determination of number of oxygen atoms and hydrogen atoms in 1.00 kg of water is as follows;…

Q: How many atoms are in each elemental sample?

A: 1 mol of an element represents the Avogadro number of atoms of the element. Avogadro number…

Q: formuia for tre feilcwing mcle cules Suppiy the missag what ere likeiy digit. Choose 1 FA tle…

A:

Q: Determine the mass, in grams, of 0.710 moles of S (1 mol of S has a mass of 32.07 g).

A:

Q: The Cullinan diamond was the largest natural diamond ever found (January 25, 1905). It weighed 3104…

A:

Q: How many silver atoms are there in 3.72 g of silver? Express your answer using three significant…

A:

Q: alculate reduced molar mass (in g/mol] for two particles with masses 30.4 g/mol and 57.7 g/mol. Note…

A: Given mass of particle 1(m1) = 30.4 g/ mol Mass of particle 2(m2) = 57.7 g/ mol Reduced mass =?…

Q: The Cullinan diamond was the largest natural diamond ever found (January 25, 1905). It weighed 3104…

A: The number of carbon atoms present in Cullinan diamond weighed 3104 carats is calculated in step…

Q: (a) CaCO,(s)²Ca²*(aq) + CO,²-(aq) (b) Mg,(PO,);(9) =3 Mg²"(aq) + 2 PO,' (aq) (c) CO(g) +…

A:

Q: mass Al = 27.0g A1 find the mass of AI mole AI जनद y=.073750. f

A: Given, y ( 27.0 g Al / mole Al )  y = 0.02375        Required,                          Mass of Al…

Q: I want to know at least some reason why the mass of the Mgo formed could be lower that expected

A: Interpretation -  To tell about a reason why the mass of the MgO formed could be lower that expected…

Q: number

A: According to the question, the atomic number of oxygen is 8 and the atomic number of sulfur is 16.…

Q: Determine the mass, in grams, of 0.580 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A:

Q: Determine the mass, in grams, of 0.145 moles of Pb (1 mol of Pb has a mass of 207.2 g).Determine the…

A: Given: Moles of Pb = 0.145 mol Molar mass of Pb = 207.2 g/mol Mass of Na = 61.0 g Molar mass of Na =…

Q: If a different nail is coated with a 0.053 cm thick layer of zinc and the surface area of the nail…

A:

Q: O Cs20 > SnO2 > MgO > P4010 > Cl207 O C,0, > P4010 > SnO2 > Cs20 > MgO O MgO > Cs20 > P4010 > SnO2 >…

A: Applying concept of metalic character and electronegative of central atom.

Q: Substance X was analysed and found to contain 40.00 % carbon, 6.67 % hydrogen and 53.33 % oxygen by…

A:

Q: A is asking If the carbon in the pencil weighs 1.50 grams, how many carbon atoms does the pencil…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A. Calculate the number of moles for B. Calculate the mass of the each given. 1.) 45g of table sugar…

A: Given: Mass of sugar = 45 g Moles of nitrogen gas = 2.7 moles Standard data: The molar mass of…

Q: One mole of O, has a mass of 16.0 g. Select one: O True O False

A: According to mole concept, 1 mole of a substance is equal to its molar mass. Therefore, first of…

Q: How do chemists count the number of particles in a substance? O a They use isotopic compositions. O…

A: In international system of Units, seven base units are derived to measure the physical quantities.…

Q: number of atoms in 5.12 g P

A: number of atoms in 5.12 g for  Phosphorus

Q: Determine the mass, in grams, of 0.750 moles of S (1 mol of S has a mass of 32.07 g).

A:

Q: A 0.8870 g sample containUng Qaix Naci and KGI was Teated win AgNO3. formed had a mass of 1.913 g.…

A:

Q: For your research project, you need to use isotopic labels. For this you buy chlorine gas (Cl2) that…

A: The basic constituent of a substance is known as an atom that has a nucleus consisting of protons…

Q: Does one mole of Mg and one mole Ge have the same mass or a different mass? Explain your answer.

A:

Q: (a) Which has more atoms: a kilogram of hydrogen or a kilogram of lead? Which has more mass? (b)…

A: (a) The atomic mass of hydrogen is much smaller than that of lead, and 1 kg of hydrogen will have a…

Q: The molar mass unit is gram per litter t true False

A: Explanation to the correct answer is given below

Q: The molar masses of the four natural isotopes of chromium are 50 g mol-1, 52 g mol -1 53 g mol -1…

A: Given: The molar mass of four isotopes of chromium is 50 g/mol, 52 g/mol, 53 g/mol, and 54 g/mol.…

Q: Calculate the mass of sample. 72.1 mmol SO2

A: Given:  The number of moles of SO2=72.1  mmol=72.1×10-3mol The molar mass of…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.