Nitrogen gas can be prepared by passing ammonia over copper(II) oxide, and the other products are copper metal and water vapor. If a sample containing 9.87 moles of NH₃ is reacted with excess copper(II) oxide, how many grams of N₂ will be formed?

Q: 1. The most abundant form of carbon has an atomic mass number A = 12, and a molar mass of 12 g/mol.…

A: We have to calculate the moles of carbon.

Q: Nitrogen gas can be prepared by passing ammonia over copper (lll) oxide, and the other products are…

A:

Q: A sample of ammonium phosphite, (NH4)3PO3, contains 0.162 mol of nitrogen atoms. The number of moles…

A: Given , ammonium phosphite  (NH4)3PO3

Q: A compound is 52.14% C, 13.13% H, and 34.73% O by mass. What is the empirical formula of the…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: A compound containing carbon, nitrogen, and hydrogen is combusted completely with excess oxygen to…

A: Given: The mass of NO2 (nitrogen dioxide) is 138 g The mass of CO2 (carbon dioxide) is 28.0 g The…

Q: Hydrogen gas is considered a clean fuel because it produces only water vapor when it burns. If the…

A: Combustion reaction of hydrogen gas is  H2 + 12 O2 → H2O   Given that , mass of water (H2O) formed =…

Q: Methanethiol (CH4S) has a disagreeable odor and is often a component of bad breath. When…

A: The balanced reaction of combustion of CH4S is as follows: CH4S+3O2→SO2+2H2O+CO2 Determination of…

Q: Consider the reaction. Pb(SO,), + 2 Zn → 2 ZNSO, + Pb If 0.234 mol of zinc reacts with excess…

A: Recall the given reaction       PbSO42 + 2Zn → 2ZnSO4 + Pb Given that 0.234 moles of zinc have been…

Q: Vitamin C is essential for the prevention of scurvy (and large doses may be effective in preventing…

A:

Q: Consider the following balanced chemical equation: 3H2 + N2 → 2NH3 If 7.05 grams of H2 were mixed…

A: Given balanced equation: 3H2 + N2 → 2NH3 We have to find how many grams of NH3 would form if 7.05…

Q: This reaction makes potassium superoxide useful in a self-contained breathing apparatus. How much O2…

A: 1- First calculate the moles of KO2 and CO2 :  moles of KO2 = [ mass / molar mass ]  moles of KO2 =…

Q: (a) Caproic acid, responsible for the odor of dirty socks, iscomposed of C, H, and O atoms.…

A:

Q: Oxides of virtually every element are known. Bromine, for example, forms several oxides when treated…

A: Given, Mass of Br2 = 1.550 g Mass of BrxOy obtained = 2.326 g

Q: Nitrogen gas can be prepared by passing ammonia over copper(II) oxide, and the other products are…

A: Nitrogen gas is prepared by passing ammonia over copper(II) oxide. Chemical reaction :-     NH3 +…

Q: Ammonia is manufactured using the following reaction: n2 + 3h2 → 2nh3 How much ammonia can be…

A: Given, Moles of N2 = 2.04 × 10-3 mol Moles of H2 = 6.83 × 10-3 mol

Q: Nitrogen gas can be prepared by passing ammonia over copper(II) oxide, and the other products are…

A: The reactants are ammonia i.e NH3 and copper (II) oxide i.e CuO.  And the products are copper metal…

Q: Oxides of virtually every element are known. Bromine, for example, forms several oxides when treated…

A: Given : Mass of Br2 reacting = 1.350 g And mass of BrxOy formed = 2.026 g Since the compound is…

Q: When heated, KCIO, decomposes into KCl and O,. 2 KCIO, 2 KCI + 302 > If this reaction produced 34.6…

A: The balanced Chemical equation given in the question is -   2KClO3 ------> 2KCl + 3O2   Molar…

Q: Ethylene glycol, used in automobile antifreeze, is 38.7% C,9.7% H, and 51.6% O by mass. Its molar…

A:

Q: How many grams of H2 are needed to produce 14.99 g of NH3? Express your answer numerically in grams.

A: From given  The reaction  is as follows  N2 + 3H2 2NH3 So from reaction we can say  According to…

Q: Ammonium phosphate ((NH4),PO4) is an important ingredient in many fertilizers. It can be made by…

A: To calculate the mass of ammonium phosphate produced by reaction of given mass of ammonia , we would…

Q: Nitrogen gas can be prepared by passing ammonia over copper(II) oxide, and the other products are…

A: The balanced chemical equation can be written as follows:

Q: finding the number of moles of Zn(OH), produced i

A: To find the correct set up we need to correlate  Zn and Zn(OH)2 in terms of moles

Q: When aluminum metal is placed into hydrochloric acid (HCl), aluminum chloride and hydrogen gas are…

A: Here we are required to find the mass of HCl needed to produce 2.02gm of hydrogen gas

Q: This reaction makes potassium superoxide useful in a self-contained breathing apparatus. How much O2…

A: 4KO2 + 2CO2 ----> 2K2CO3 + 3O2 =(284g) =88g                         =96g

Q: For the chemical reaction 2Al+3H2SO4⟶3H2+Al2(SO4)3 How many moles of hydrogen will be produced from…

A: Number of moles of aluminium can be calculated as follows:

Q: A sample of CH 3 F contains 2.71 * 10 ^ 24 molecules. How many moles of CH 3 F are present?

A: Since moles of any molecule = number of molecule / Avogadro's number  Avogadro's number = 6.022 X…

Q: When heated, KClO3 decomposes into KCl and O2. If this reaction produced 52.6 KCl, how many grams of…

A: Potassium chlorate decomposes into potassium chloride and oxygen gas on heating. The equation for…

Q: A compound containing only phosphorus and hydrogen was fully combusted and yielded 17.9 g of P4O10…

A: Given statement is : A compound containing only phosphorus and hydrogen was fully combusted and…

Q: Nitrogen gas can be prepared by passing ammonia over copper(II) oxide, and the other products are…

A: by writing a balance equation , we can solve this problem.

Q: Consider the following balanced chemical reaction: CaSO3 + 2HCl → SO2 + H2O + CaCl2 If 750.0 grams…

A: Calcium sulfide reacts with hydrochloric acid to form sulfur dioxide, water, and calcium chloride.…

Q: For the chemical reaction, 2Al+3H2SO4--->3H2+Al2(SO4)3 what mass of sulfuric acid is needed to…

A: Given: The given reaction is, Moles of aluminium sulfate = 4.67 mol

Q: For the chemical reaction   2Al+3H2SO4⟶3H2+Al2(SO4)32Al+3H2SO4⟶3H2+Al2(SO4)3   what mass of…

A:

Q: Ethanol, C2 H5 OH, burns with the oxygen in air to give carbon dioxide and water. C2H5OH(1) + 302(9)…

A:

Q: Ammonium phosphate ((NH4),PO4) (NH3). is an important ingredient in many fertilizers. It can be made…

A: The balanced reaction for the production is  H3PO4 + 3 NH3 -----> (NH4)3PO4  Hence from the above…

Q: Nitrogen gas can be prepared by passing ammonia over copper(II) oxide, and the other products are…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

Q: 3 Mg   +   2 AlCl3   →   3 MgCl2   +   2 Al When this reaction was performed in the lab, 2.8 g of…

A:

Q: Nitrogen gas can be prepared by passing ammonia over copper(II) oxide, and the other products are…

A: The balanced reaction is: 2NH3 + 3CuO → N2 + 3Cu + 3H2O

Q: A particular chemical reaction that produces benzene has a percent yield of 35.5% If you want to…

A: % yield = {actual yield/ theoretical yield} × 100

Q: This reaction makes potassium superaxide useful in a self-contained breathing apparatus. How much Oz…

A: First calculate moles of KO2 and CO2. Then use mol to mol ratio to check which compound forms less…

Q: When dinitrogen pentoxide, N2O5, a white solid, is heated, it decomposes to nitrogen dioxide and…

A: Given Mass of O2 produced = 1.381 g

Q: A sample of sandstone consists of only silica (SiO2) and calcite (CaCO3). When sandstone is heated,…

A: Given: Mass of sample = 18.7 mg. And mass of CO2 produced = 3.95 mg.

Q: Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon (CFC) production was…

A: Given information; The chlorine leaked into the atmosphere per year is 25% The amount of CF2Cl2 is…

Q: For the chemical reaction 2Al+3H2SO4⟶3H2+Al2(SO4)32Al+3H2SO4⟶3H2+Al2(SO4)3 what mass of hydrogen is…

A: Given data, Given chemical reaction is, The moles of Al is 2.93 mol

Q: When heated, KCIO, decomposes into KCl and O,. 2 KCIO, 2 KCl + 3 O2 If this reaction produced 39.2 g…

A: Potassium chlorate decomposes to give potassium chloride and oxygen.  Two moles of potassium…

Q: Consider the following balanced chemical equation: 3H2 + N2 → 2NH3 If 7.05 grams of H2 were mixed…

A: We have a balanced equation of formation of ammonia, 7.05 g of Hydrogen gas is reacted with excess…

Q: How many grams of H2 are needed to produce 12.90 g of NH3? Express your answer numerically in grams.

A: The number of moles is equal to the ratio of mass to the molar mass of the substance. the number of…

Q: A.) How many Cu atoms are there in a 99.9 gram sample of Cu ? B.) A compound is found to contain…

A: In order to solve this question we will be using basic mole concepts and dealing with stoichiometry.…

Q: The formula of ytterbium(III) oxide is Yb₂O₃. What is the percent by mass of oxygen in…

A: Mass percent represents the composition of an element in the given compound, which is calculated…

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.