C. The number of oxygen atoms in 7.35 g of barium nitrate. Ba(NO₂)

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: 3.11  mL of seawater contains about 1.31×10-14  moles of gold, how many atoms of gold are in that…

A:

Q: Mercury occurs as sulfide ore called cinnabar, HgS. How many grams of mercury are contained in 578…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: A sample of hydrogen sulfide, H2S, had a mass of 51.00 g. Calculate the number of hydrogen sulfide…

A: Given, mass of H2S = 51.00 g number of H2S molecules = ? Note:  molar mass of H2S = 34.1 g/mol

Q: If you react 5.2 grams of magnesium metals with 2.3 grams of copper (II) bromide, how many total…

A: Given : Mass of magnesium i.e Mg taken = 5.2 g And mass of copper (II) bromide i.e CuBr2 taken = 2.3…

Q: What mass of ammonia gas (NH3) contains 2.81 ✕ 1024 hydrogen atoms?

A:

Q: The mass of a single molybdenum atom is 1.59×1022 grams. How many molybdenum atoms would there be in…

A: Given: Mass of single molybdenum i.e. Mo atom = 1.59 X 10-22 g. And total mass of Mo sample = 110 mg…

Q: How many fluorine atoms are present in 5.85 g of CF4?

A: Given, Mass of C2F4 = 5.85g

Q: What is the mass of oxygen in a 782.9g sample of TiO2?

A: Step : 1          What is the mass of oxygen in a 782.9g sample of TiO2?

Q: Calculate the total number of oxygen ATOMS in 1.926 g of magnesium perchlorate.

A: The total number of atoms available in the molecules of any particular substance is referred to as…

Q: The mass of water obtained in a combustion analysis of a 1.000 g sample of an organic compound…

A:

Q: 8. Convert 37.482 g of N₂O4 to nitrogen atoms.

A: In one mole of any substance there are 6.023 * 1023 number of entities present.

Q: 12) How many grams of hydrogen are in 22.9 g of C6H12O6?

A: Given information,     Mass of glucose is 22.9 g. There are six moles (or 12 atoms) of hydrogen in…

Q: Consider a sample of aluminum nitrate that contains 1.72 × 10²⁴ atoms of nitrogen. Determine What…

A:

Q: A beaker contains 48.948.9 mL of carbon tetrachloride (CCl4CCl4, density is 1.591.59 g/mL).…

A: Volume of carbon tetrachloride = 48.9 mL  Density = 1.59 g/mL  Density = mass ÷ volume

Q: A student weighs out 94.53 grams of sodium permanganate, NaMnO4.  How many moles of NaMnO4 is this?…

A: Moles— It is the ratio of given mass of a compound to its molar mass  Mole = given mass / molar mass…

Q: Cortisone consists of molecules, each of which contains 21 atoms of carbon (plus other atoms). The…

A: The given data: The number of carbon atoms present in cortisone = 21 The mass % of the carbon in…

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 hydrogen atoms are there in 80.0 g of phosphoric acid?

A:

Q: Quartz, SiO2, contains 46.7% silicon. What mass of silicon is present in 370 g of quartz?

A: To solve this problem we have to calculate the mass of silicon present in quartz .

Q: How many oxygen atoms are contained in a 5.525 g sample of calcium phosphate?

A: First of all, we will calculate the no. of moles of calcium phosphate in 5.525 g of sample and then…

Q: will

A:

Q: A new computer chip contains 4.71×1022 Si atoms. Determine the mass (in grams) of the silicon…

A: 1 mole of any substance contains avagadro number of atoms i.e.6.022×1023 atoms.  6.022×1023 atoms of…

Q: A 45.0-mg sample of boron reacts with oxygen to form 145 mg of the compound boron oxide. What is…

A: Empirical formula is the basic simple ratio formula of a molecule after finding the moles of that…

Q: A 4.90g sample of barium bromide is reacted with 11.7g of silver (i) nitrate to form silver (i)…

A: The balanced chemical equation for the given reaction is shown below.

Q: How many grams of carbon tetrachlorride are in 1.01 x 1024 molecules?

A: Given: Number of molecules= 1.01×1024  To find: Grams of carbon tetrachloride Formula: Number of…

Q: How many cations are there in 50.0 g of sodium phosphate?

A: Given:Mass of compound = 50.0 g.Formula of sodium phosphate is Na3PO4.Molar mass of Na3PO4 = 164…

Q: Convert 1.61 × 1024 atoms of carbon to moles of carbon.

A: Answer:Each mole of a substance has number of particles equal to Avogadro number whose value is…

Q: 1. What is the mass of 1.22 x 1022 molecules of silicon monocarbide? How many molecules are in 99.5…

A: 1) given, molecules of silicon monocarbide = 1.22×1022 molecules Avogadro's constant, Na =6.022 ×…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: There are 1.18x10^24 carbon atoms in how. Many grams of glucose?

A: 1 mole = 6.0224 x 1023Mass = Number of mole x Molar massMolecular Formula of glucose = C6H12O6

Q: How many atoms of oxygen are in 12.99 g in nickel (II) nitrate?

A:

Q: grams in 11

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

Q: How many H atoms are in 75.7 g of acetaldehyde, C2H4O?

A:

Q: How many moles of arsenic are there in 6.50 g of arsenic?

A:

Q: How many grams of hydrogen are in 33.9 g of CH4O?

A: Given  Mass of CH4O = 33.9 gram Mass of Hydrogen = ?

Q: Suppose you have a sample of sodium weighing 12.40 g. How many atoms of sodium are present in the…

A: A: 3.25 x 1023 atoms of sodium B: 21.1 g of potassium

Q: What percentage of NH4NO3 is nitrogen?

A: Mass percent of element  is the mass of element present in 100g of the compound. Mass percent of…

Q: In 6.9 g of aluminum, there are ______ x 1023 aluminum atoms present

A: Molecular mass of atom contains 6.023 × 10^23 atoms. Molar mass of aluminium is 26.981 g/mol

Q: How many grams is equivalent to 1.204 x 1024 molecules of NH3? How many moles are there in 584 g of…

A: 1 mol = Avogadro's number molecules            = 6.022 * 10 23 molecules  Moles = weight / molar…

Q: What number of Ti atoms and what amount (moles) of Ti atoms are in 700.0 g of titanium?

A: a) To calculate moles from given mass, we use molar mass . The formula is given as : Moles…

Q: 1)Copper metal reacts with molecular nitrogen to form copper(II) nitride.  a)Write the balanced…

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.