A 3.87g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.30x1022 N2O molecules.  a) How many nitrogen atoms are in this sample?  b) How many nitrogen atoms are in 2.97 g of nitrous oxide?

Q: Combustion of iron creates iron(III) oxide. How many moles of oxygen are needed to fully convert…

A: Combustion, a chemical reaction between substances, usually including oxygen and usually accompanied…

Q: An ionic compound MX3 is prepared according to the following unbalanced chemical equation.   M  +…

A: The number of moles of X2 (nX) is calculated using equation (1) in which N is the number of…

Q: When I calculate 9.89g of caffeine (C8H10N4O2) into number of atoms I divide the mass by atomic mass…

A: Your calculations are on the right track, but it's important to understand the concept of the mole…

Q: How many atoms of hydrogen are in a sample of glucose (C6H12O6 molecular mass = 180.12 amu/molecule)…

A: A sample of glucose is considered. The number of atoms of hydrogen present in the sample can be…

Q: how many ions or atoms of each element are in 160.5 g of the following substances?  a) H2 _?_ x1025…

A:

Q: An unknown compound contains nickel, phosphorus, and oxygen. When analyzed, a 100.0 g sample was…

A:

Q: An unknown compound is processed using elemental analysis and found to contain 117.4 g of platinum,…

A: We know that,  Number of mole = given mass/molar mass Atomic mass of platinum =195.084 g

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

A:

Q: 1) How many sodium atoms are there in 0.3 moles of Na atoms? 2) A sample of carbon dioxide is made…

A: 1) given, Number of moles of Na atoms = 0.3 moles Number of sodium atoms = ?

Q: A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and  0.440 g of…

A: To answer this first of all we have to convert grams into moles and we have to determine the simple…

Q: An unknown compound contains nickel, phosphorus, and oxygen. When analyzed, a 100.0 g sample was…

A: Molecular formula is defined as sum of masses of atoms in molecules.

Q: A sample of pure alumina hydrate was obtained from a bag of flame retardant. A 5.000 g sample of the…

A: Weight of the hydrated aluminum oxide (Al2O3 . xH2O) = 5.000 g Weight of the anhydrous alumina (when…

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

A:

Q: What is the mass of the compound C8H18 (Mm = 114.26 g.mol-1) that contains 7.20x1022 hydrogen atoms?

A: Given :- molar mass of C8H18 = 114.26 g.mol-1  Number of H atoms = 7.20 × 1022 atoms   To calculate…

Q: A compound contains only C, H, and N. Combustion of 35.0 mg of the compound produces 54.9 mg CO2 and…

A:

Q: - Why do we use the "mole" in chemistry. How does it relate to the periodic table? a) What is the…

A: The relationship between mole and mass is as follows:       Mole = Mass Molar mass ⇒Mass =…

Q: The fuel used in many disposable lighters is liquid butane, C4H10. How many carbon atoms are in 1.50…

A: The value is given as follows:

Q: How many H atoms are in 19.9 g of isopropanol (rubbing alcohol), C3H3O?

A:

Q: Diamonds are a crystalline form of pure carbon, and their mass is measured in units of carats (1…

A: Given: Mass of diamond = 84.37 carat And 1 carat = 200 mg = 0.200 g…

Q: The compound phthalic acid consists of carbon, hydrogen and oxygen. When a 1.969 g sample of…

A: First calculate the number of moles and mass for C and H. Use that to calculate mass of O and its…

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1044…

A: Given data,  Mass of nitrous oxide = 2.37 g  Contains 3.24 × 1022 N2O molecules

Q: One mole of water contains 6.022 × 1023 hydrogen atoms

A:

Q: Ethanol, CH3CH2OH, is the principal type of alcohol found in alcoholic beverages, produced by the…

A:

Q: 3. How many water molecules are in 2.00 liters of water? The density of water is 1.00 g/mL.

A: Density of water = 1.00 g/mL It means 1.00 mL water contains 1.00 g

Q: Consider a sample of calcium carbonate, CaCO3 (100.09 g/mol), in the form of a cube measuring 2.88.…

A: The length of the cube of calcium carbonate, CaCO3 =2.88 cm The density of the calcium carbonate,…

Q: a compound contains 47.08% C, 6.59% Hydrogen and 46.33% Cl by mass. The molar mass of the compound…

A: T

Q: 2.050 g of an unknown sample contains H, S, and O. If the compound contains 0.0500 g H and 0.800 g…

A: Total weight of unknown sample = 2.050g  Mass of H = 0.0500g  Mass of S = 0.800g

Q: In 0.4 ure in 2.9 mol of

A: Firstly Calculate the moles of Br atom in CHBr3  moles of Br atom = 3 • ( moles of CHBr3 )  Moles of…

Q: How many moles of atoms are contained in 5.80 X 1024 C2H2 molecules?

A: Number of molecules is equal to the mole multiply by avagadro number.   Avagadro number is equal to…

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: Lithium carbonate, Li2CO3, contains 18.8 % lithium and is used in the treatment of mental illnesses…

A: The percent mass composition is also known as the mass percent is the mass of solute present in…

Q: a. How many ATOMS of boron are present in 5.24 grams of boron trifluoride? atoms of boron. b. How…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

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: A lawn fertilizer is rated as 7.55% nitrogen, meaning 7.55 g of N in 100 g of fertilizer. The…

A: Given, A lawn fertilizer is rated as 7.55% nitrogen, meaning 7.55 g of N in 100 g of fertilizer. The…

Q: 5.) Ethylene glycol is a coolant widely used in automobiles. If its molecular formula is C2H6O2, how…

A: Number of moles is defined as the amount of the substance divided by the molecular weight of the…

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: How many carbon atoms are there in 180 g of propanol (C3H8O).

A: Given mass of propanol

Q: The mass, in grams, of 1.5 x 10-2 mol of CdS. The number of moles of hydrogen in 86.6 grams of…

A:

Q: How many moles of aspirin, C9H8O4, are in a bottle containing 450 g by weight? (Note: The…

A: Given,  Weight of aspirin is 450 g Atomic weight of C is 12 g/mol. Atomic weight of H is 1 g/mol.…

Q: How many atoms are present in 123 g of sodium cyanide (cyanide = CN-)?

A: Dear student since it is a multiple type question, according to guidelines here I am solving only…

Q: What number of Ge atoms and what amount (moles) of Fe atoms are in 500.0 g of iron

A: Mass of Iron (Fe) = 500 g Molar mass of iron = 55.84 g/mol   We know that ; * 1 mole of substance =…

Q: Part A. What is the mass of 9.50 moles of magnesium chloride, MgCl2? Express your answer with…

A: Part A: Calculation of mass of MgCl2 : The number of moles of MgCl2 = 9.50 moles The mass of a…

Q: 2. A mixture weighing 1.250 grams is 20.0% sodium nitrate, 56.0% silicon dioxide, and the rest is…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".