The following diagram represents the collection of elementsformed by a decomposition reaction. (a) If the blue spheresrepresent N atoms and the red ones represent O atoms,what was the empirical formula of the original compound?(b) Could you draw a diagram representing the moleculesof the compound that had been decomposed? Why or whynot? [

Q: An unknown pentahydrate salt is known to release water when heated according to the following…

A: Given: Mass crucible = 24.3365 g Mass crucible + hydrate = 29.6115 g Mass crucible + residue after…

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: We know that   To find the percentage by mass of each element in the given compounds we have to use…

Q: 30. Which of the following particulate diagrams best represents the reaction of gaseous sulfur…

A: We are given some particulate diagram.

Q: Be sure to answer all parts. Write the unbalanced chemical equation to represent each of the…

A: Here, we have to write the unbalanced chemical reactions for the given reaction statements.

Q: Rusting of iron involves a chemienl neactioN which is a combination of: * Reduction as well as…

A:

Q: For the following reaction, 0.256 moles of benzene (C,H6) are mixed with 0.568 moles of oxygen gas.…

A: The reaction given is C6H6 (l) + O2 (g) ---------> CO2 (g) + H2O (g)  Balancing : since we have 6…

Q: (a) Calculate the number of moles of C and H present in the compound. (b) Find the mass percentages…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A compound consists of 20.3 grams of Carbon, 5.12 grams of Hydrogen, and 7.9 grams of Nitrogen. (a)…

A:

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: The emperical formula can be calculated as follows

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 crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Mass of crucible = 26.639 g Mass of crucible + mass of Na2SO4·xH2O = 27.085 g Therefore mass of…

Q: How many formula units are in 170.6 g of the following substances? (a) Br₂: (b) MgCl₂: (c) H₂O: (d)…

A: We simply convert the mass to moles, and from moles to formula units. We use Avogadro's number to…

Q: 15. Laboratory analysis of a sample yielded the following data for the combustion of Nickel Ni(s) +…

A: Given,  The combustion reaction:                               Ni(s) + O2(g) -------> Ni O(s)…

Q: An unknown compound has the following chemical formula: Fe(NO,), where x stands for a whole number.…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: The mole is defined in terms of the carbon-12 atom. Usethe definition to find (a) the mass in grams…

A: The quantity of a substance which consists of the number of carbon atoms in 12 g of pure carbon-12,…

Q: In the previous questions, how much of the excess reagent is left unreacted? *: 39.31 g O 43.87 g…

A:

Q: Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom and…

A: Given :  Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom…

Q: When 1.28 g of silver reacts with an excess of nitric acid, how many grams of silver nitrate is…

A: To solve this problem first we have to write the balanced chemical equation . Then according to the…

Q: A sample of a substance with the empirical formula XCI3 weighs 0.4884 g. When it is dissolved in…

A:

Q: Is each of the following statements true or false? Correctany that are false:(a) A mole of one…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: The salinityof a solution is defined as the grams of totalsalts per kilogram of solution. An…

A: As per the question, Mass of = 35 g Let mass of NaCl = x g Then, mass of =(35-x) g  Let the number…

Q: 1.08 g Epsomsalt (or hydrated magnesium sulfate)is heated,and 0.57g of dried Epsom…

A: Given: 1.08 g Epsomsalt (or hydrated magnesium sulfate)is heated and 0.57g of dried Epsom…

Q: A crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Since on heating the compound, the mass of water will be lost as it will get vaporised  Hence the…

Q: A student was synthesizing aspirin in the laboratory. Using the amount of limiting reactant, she…

A: Here we are required to find the percentage yield for the synthesis of aspirin

Q: Given the chemical reaction: 4Li(s) + O2(g) → 2Li2O(s) when 100.0 g of Li and 40.0 g of O2 are…

A: Introduction: The limiting reagent in the chemical reaction is that molecule which is completely…

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

A:

Q: A 18.2 g of iron metal reacts with excess oxygen gas to produce 47.9 g of Fe3O4. The reaction…

A: Fe + O2 -------> Fe2O3

Q: Determine the molar mass of Al2(SO.),-5H,0.

A: To determine the molar mass of

Q: You are making double-decker sandwiches; each sandwich consists of 3 slices of bread, 2 chicken…

A:

Q: If the specific heat of water is ca increase the temperature of 75 g of water by 30 °C? 1gx1°C» how…

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

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: The mass percentage of an element in a particular compound can be found by dividing the atomic mass…

Q: Calculate each of the following quantities. (a) mass in kilograms of 4.8  1020 molecules of NO2…

A:

Q: 2) a) Describe how the presenceof Bromine, Nitrogen and suljhur in an organic compound can be…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Calculate each of the following quantities:(a) Mass in grams of 8.35 mol of copper(I) carbonate(b)…

A: a) Mass in grams of 8.35 mol of copper(I) carbonate can be calculated as, Now substitute the know…

Q: One of the compounds used to increase the octanerating of gasoline is toluene(right).Suppose 20.0 mL…

A: The given data contains , volume of toluene =20 ml Density of toluene =0.867 g/ml

Q: ne mass

A:

Q: compound has the following chemical formula: ds for a whole number. s also show that a certain…

A:

Q: An analyst performed an analysis of a sample for its calcium ions content got the following results:…

A: Accuracy means the agreement of a particular value to the true value. Hence accuracy is the measure…

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A:

Q: For the following reaction, 13.0 grams of sodium are allowed to react with 6.47 grams of water…

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

Q: Albuterol sulfate is a white crystalline powder that can be taken in a solid form or mixed into a…

A: % of C = 65.2 % = 65.2 g% of H = 8.86 %  = 8.86 g% of O = 20.0 % = 20 g% of N =  [100 - (65.2 + 8.86…

Q: In a lab experiment, 5.2 g of Mg reacts with sulfur to form 12.1 g of magnesium sulfide. (a) Use…

A: Given Mass of Mg = 5.2 gram Molar Mass of Mg = 24.305 g/mol Mass of MgS formed = 12.1 gram Molar…

Q: A student synthesizes tin oxide to create a compound with generic formula SnxOy. She does this by…

A: Given : mass of product = 39.10 g           Mass of oxygen= 30.80 g  Molar mass of oxygen= 15.999…

Q: Bimethylhydrazine, the fuel used in the Apollo lunar descent module, has a molar mass of 60.10…

A: Dimethyl hydrazine used as fuel has a molar mass of 60.10 g mol-1.  It is made of carbon, hydrogen…

Q: The empirical formula for C6H12 is-

A: Applying concept of empirical formula.

Q: Mass of  reactant A  Mass of  reactant B  Mass of  pure product   Mass of  excess reactants…

A: From the first trial ., 4.1796 gram mass of reactant A react with 1.0296 gram mass of reactant B to…

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: Percentage by mass  = (Mass of element in 1 mole of compound/molar mass of the compound) × 100%…

Q: Nitrogen (N2)and hydrogen (H2) react to form ammonia(NH3). Consider the mixture of N2 and H2 shown…

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.