In a combustion reaction, 30.8 g of ethanol reacts with 64.3 g of oxygen to produce water and carbon dioxide. If 36.2 g of water is produced, how much carbon dioxide is produced?

Q: When 6.00 g of sulfur are combined with 6.00 g of oxygen, 12.00 g of sulfur dioxide (SO2) are…

A: Molecular mass of sulfur = 32 g /mol, means 32 g in 1 mol.Molecular mass of O2 = 32 g / mol, means…

Q: The mass of a single iridium atom is 3.19×1072² grams. How many iridium atoms would there be in 339…

A: In order to do the calculation, we need to convert the mass in mg to g using the relation: 1 g =…

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: Suppose you have a sodium sample weighing 11.42 g. What mass of potassium would you need to have the…

A: Given, Mass of Na =11.42 g

Q: Calculate the number of atoms in each of the following quantities:  a. 10.8 g boron  b. 20.0 g…

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

Q: What is the mass of a single bromine molecule, Br 2?

A: The bromine molecule is composed of two bromine atoms that are covalently bonded to one another.

Q: Would it be possible to determine the percentage of oxygen in NaCIO3?

A: The given compound is = NaCIO3 The percent of oxygen in this compound is =?

Q: A substance contains 35.0 g nitrogen, 5.05 g hydrogen, and 60.0 g of oxygen. How many grams of…

A: The question is about calculating the mass of Nitrogen in a 169 g sample of the substance -

Q: Which postulate of Dalton’s theory is consistent with the following observation concerning the…

A: The reaction is decomposition of solid Calcium carbonate to form Carbon dioxide and Calcium oxide.…

Q: Suppose that atomic masses were based on the assignment of a mass of 12.000 g to 1 mol of carbon,…

A: SOLUTION: Step 1: One Dalton is defined as one-twelfth the mass of one mole of carbon-12 isotopes.…

Q: A sample of a metal has a mass of 27.009 g. It contains 8.257 x 1022 metal atoms. What metal is it?

A: The question is based on mole concept. We have been given mass and number of atoms of metal. we have…

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

A:

Q: If you have 13.02 x1023 atoms of nitrogen, what would you expect its mass to be?

A: Given, Number of Nitrogen atoms = 13.02 X 1023

Q: The density of helium in a balloon is 1.18 g/L. If a balloon holds 2.99 L of He, how many atoms of…

A:

Q: À 7.45 g sample of calcium carbonate completely decomposes into calcium oxide (lime) and carbon…

A: Answer :-  1) only 3  i.e. The original solid is not an element.…

Q: What is the mass of 2.2 × 109 carbon dioxide molecules?

A: The number of entities in one mole of a species equals 6.022 x 1023, this value is known as…

Q: 3.123 In the formation of carbon monoxide, CO, it is foundthat 2.445 g of carbon combine with 3.257…

A:

Q: 9.21 x10^19 molecules of hydrogen gas,(H2) are equal to how many grams of hydrogen gas?

A: Number of molecules = 9.21 × 1019 molecules Avogadro’s constant = 6.022 × 1023 molecules Numbre of…

Q: Calcium oxide (CaO), also known as quicklime, can be produced by heating calcium carbonate (CaCO3).…

A: The molecular formula of calcium oxide is CaO. It states that one molecule of calcium contains one…

Q: What is the mass % of H in C9H10N2?

A: Mass percentage is a kind of expressing the concentration of a solution. It gives an information…

Q: Is the volume of H2 produced larger than the volume of O2 producedbecause (a) hydrogen atoms are…

A: Given: The volume of H2 produced is larger than the volume of O2

Q: Matter is neither created nor destroyed in a chemical reaction. Thus, the mass of the products of a…

A:

Q: How many grams of oxygen are combined with 94 grams of iron to make the iron(II) oxide compound?

A: Given: Oxygen is combined with iron to give iron(II) oxide. Mass of iron = 94 grams.

Q: How many grams of potassium permanganate contain 5.48 x 1020 atoms of oxygen?

A: Given: Number of atoms of oxygen in KMnO4 sample = 5.48 × 1020 atoms.

Q: 15. Copper (1) oxide, Cu2O, is reduced to metallic copper by heating in a stream of hydrogen gas.…

A: Reaction: Cu2O +H2 →2Cu +H2O Molecular mass of Cu2O=(2 x 63.55 +16)=(127+16)=143 when 143 g of Cu2…

Q: The mass of an atom of hydrogen is 1.673 x 10-24 g. How many atoms are in a 10.8 g sample of…

A: Since mass of 1 H atom = 1.673 x 10-24 g Hence assuming in 10.8 g sample of hydrogen we have n…

Q: Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

A:

Q: natural rubidium has the average mass of 85.4678 AMU and is composed of isotopes Rb 85 (mass =…

A: Average atomic mass = ∑i=1XiMiWhere X = mole fraction of the isotope and M is the mass of the…

Q: White phosphorus consists of a molecule made up of four phosphorus atoms. It burns in pure oxygen to…

A: The given balanced chemical equation                                               P4…

Q: How many atoms of gold are in 1 gram of gold?

A: Given, 1 gram of gold

Q: How much does 8.44 x 1063 molecules of water weigh?​

A: Molecular weight of water =18g/mol i.e. 1  mol of water (6.023 x 1023 molecules) of water has mass…

Q: What mass of CdS is produced if 8.47 g cadmium reacts with 2.51 g of sulfur?

A:

Q: How many helium atoms are in 541 kg of helium?

A:

Q: 9. If you have 9.407 x 1023 atoms of lead, how many grams of lead (IV) phosphate can you make? 10.…

A:

Q: What is the mass of 4.78 X 1024 NO2 molecules?

A: Given :-  Number of molecules of NO2 = 4.78 X 1024  To be calculated :- mass (in g)

Q: 1) What is the mass in grams of 6.86x10^23 atoms of manganese? 2)How many manganese atoms are there…

A: 1)  Number of moles of manganese = number of atoms (given) / number of atoms in 1 mole number of…

Q: calculate the number of atoms in 1.72 grams of barium

A:

Q: 7. What is the mass in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Given mass of Carbon = 1.076 g Molar mass of Carbon = 12.01 g/mol Molar mass of C6H8O6 = 176.12…

Q: A sample of 6.000 g of nitrogen can be combined with 6.857 g of oxygen to form nitric oxide gas…

A: To Find: To find out the mass of oxygen required to react with  nitrogen to form nitrogen dioxide.

Q: The mass of an average neon atom is 20.2 atomic mass units. One atomic mass unit is equal to…

A: The term atomic mass unit can be defined as the unit of mass which is used to express the atomic or…

Q: Part B Magnesium makes up 2.10 % by mass of the Earth's crust. How many grams of magnesium are…

A: Mass percent :-  The mass of a component in grams present in 100 grams mixture of all components is…

Q: Upon decomposition, one sample of magnesium fluoride produced 2.55 kg of magnesium and 3.99 kg of…

A: Given information, Magnesium is produced from the first sample is 2.55 kg. Fluorine is produced from…

Q: 45.5 grams of a magnesium reacts with 243.2 grams of oxygen gas. At the end of reaction, 211.2 grams…

A: using mole concept from Balanced chemical equation easily determination of moles of products is…

Q: What is the mass of 4.12 x 10^23 water molecules?

A: The number of water molecules is = 4.12×1023 molecules The mass of these molecules is =?

Q: 3.97 x 10^24 molecules of NO has what mass

A:

Q: A student has 3.86g of iron metal what would be the mass of rust produced if all of the iron was…

A: Moles of iron present in the 3.86 g of iron metal is :

Q: What is the mass of 6.77x10^24 nitrogen atoms?

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: How many moles of gold are 8.5 x 1024 atoms of gold?

A:

Q: Phosphorus is obtained primarily from ores containing calcium phosphate. If a particular ore…

A: Given information: The mass percent composition of calcium phosphate is 57.8% The amount of…