(b) What is the total number of moles of atoms for the three elements?

Q: 20. In Figure P3.6, the red spheres represent oxygen, black represent carbon, blue represent…

A: #P.3.6: Red spheres represent O atoms. Black spheres represent C atoms. Blue spheres represent N…

Q: Consider the following reaction to make alum: 2 Al(s) + 2 KOH(aq) + 22 H₂O(l) + 4 H₂SO4 (aq) → 3…

A:

Q: Give the following generic chemical reaction, determine the moles of B2 needed to react with 1.25 x…

A:

Q: 2. A mixture of Na2SO4 and its hydrate Na,SO4-10H2O has a mass of 1.5099 g. After heating to drive…

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

Q: Consider the harber-bosch process for the synthesis of ammonia from its elements. Calculate the…

A: The given chemical reaction as follows,N2(g)+3H2(g)⇌2NH3(g)amount of H2 for reaction =15.6 gramand…

Q: 1. Use chemical symbols to generate the factor needed to convert the weight of the substance in uie…

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

Q: 7B-1. Consider this chemical reaction: P4(s) + 5 O2(g) 2 P205(s) How many grams of diphosphorus…

A:

Q: What is the mass percentage

A:

Q: What is the mass in grams of NO that can be formed from 2.68 moles of NO2 in the reaction below? 3…

A: Molar mass of any substance is the mass of one mole of the substance, which is generally expressed…

Q: For the reaction C+ 2H₂ → CH4, how many moles of hydrogen are needed to make 155.6 grams of methane,…

A: The number of moles of a compound is determined by the balanced chemical reaction. The mass of a…

Q: 7.) Considering the equation 2H₂O(g) → 2 H₂ (g) + O₂(g) Calculate how many grams of 0₂ (9) Can be…

A: We will use the balanced reaction to calculate the grams of O2 produced. We can see from the…

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Number of iron atom = 1 Mass percent of  Fe in the compound = 0.330 %

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

A: Given, Mass of sample = 5.000g. Final weight of sample after heating = 2.651g. The mass of water in…

Q: 5. Balance the following chemical equations. a) SnS2(s) + O₂(g) → SnO₂(s) + SO₂(g) b) C₂Hs(g) +…

A: we have to balance the given equations

Q: A 1.42 g sample of KCr(SO) XH20 was heated in a crucible to get a constant mass. The mass of the…

A: Formula to calculate mole is :-  Mole = mass÷ molar mass

Q: 1. Consider the reaction 1,0g)+5CO(g) 5C0g)+16) a) 80.0 grams of iodine(V) oxide, I,O, reacts with…

A:

Q: 7. CaSO4 + 2AGNO3 → Ag2SO4 + Ca(NO3)2 a. If 288 of silver sulfate are produced, calculate the grams…

A: Given-> Weight of Ag2SO4 = 288 gm

Q: When butanol (C₄H₉OH) is burned in oxygen, CO₂ and H₂O are the products. What is the coefficient in…

A: The products of a complete combustion reaction are carbon dioxide and water. So the complete…

Q: How many moles of water vapor are produced for every mole of methane consumed in the combustion…

A:

Q: 5. To react with 6.00 g of carbon (MM = 12.01 g.mol-1), what minimum mass of silicon dioxide (MM =…

A: To know the mass of Silicon dioxide needed to react with 6g of Carbon, we need to find out the moles…

Q: 4. A student had a sample of CaCl2 nH₂0. He heated the sample until the mass did not change. From…

A:

Q: A local water retention pond was found to have elevated mass concentration of mercury of 14 ng per…

A: Given data: Concentration of mercury = 14 ng/L Volume of water in swimming pool = 1250 m3   Known…

Q: impurity, for example, when 2 g is dissolved in water and oxidized, then precipitated Fe (OH)3 is…

A:

Q: What are the steps for determining the mass of product C of a chemical reaction if the masses of…

A: To find the mass of product , we required the molar mass of product and reactants . The Chemical…

Q: a. What isthe percent by mass of water in iron (II) sulfate heptahydrate, FeSO4 • 7H2O  (or what…

A:

Q: Can someone please help me out on this one on what to put on the boxes . I’m unsure on what my…

A:

Q: How many grams of Al2(CrO4)3 (HINT: F.M. = 401.96) would be required to obtain 12.00 g of…

A:

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula C,H2n++…

A:

Q: 14. The following reaction occurs and 9.81 x 10 CO, molecules are produced. C,H12O6(s)+O2(g) CO (g)…

A: The given reaction is : C6H12O6(s) + O2(g) →CO2(g) + H2O (l) CO2 molecule produced = 9.81×1025 The…

Q: How many grams are in 5.32 × 1022 | molecules of CO2 ?

A: The amount of 5.32x1022 molecules of CO2 is to be calculated.

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: 1. As of today Silver is trading at $27.10 per ounce. Recall that 1 ounce = 28g. If we mine 2.5x106…

A:

Q: nere is enough lithium hydroxide to cleanse the cabin air of co2 because 2 moles of LIOH is required…

A: LiOH is widely used as CO2 scrubber. It is a common gas adsorber in spacecrafts. LiOH consume CO2…

Q: 30.0 grams of iodine(V) oxide, I½O5, reacts with 28.0 grams of carbon monoxide, cermine the mass of…

A: We will calculate all the parts

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: What mass of lime, CaO, can be obtained by heating 105 kg of limestone that is 93.0% by mass CaCO₂?…

A:

Q: 37 x 1019 molecules CH3NH2 contains how many moles of carbon?  CH3NH2 (g) +   O2 (g) →   CO2 (g) +…

A: Since given molecular formula of compound is CH3NH2 which shows that it has one caron atom or one…

Q: A mechanical engineer trainee is trying to study the combustion of natural gas, which is primarily…

A: Molar mass of a compound is equal to sum of atomic masses of all atoms present in that compound.…

Q: In the precipitation reaction AgNO3 (aq) + KCI (aq) O AgCl O KCI O KNO3 O AgNO3 AgCl (s) + KNO3…

A: A precipitation reaction is a chemical reaction in which two solutions combine to form insoluble…

Q: 4. a) A given inorganic compound contains only silicon (Si) and hydrogen (H). If the mass percentage…

A: An inorganic compound contain only silicon (Si) and hydrogen (H),a) given, mass percentage of Si =…

Q: 5. Consider the following reaction: NazPOa(aq) + Ba(NO3)2(aq) → Ba3(PO.)2(s) + NANO3. Suppose a…

A: Since you have asked multiple questions, we will solve the first question (Question number 5) for…

Q: 2. In a certain compound of chromium, chlorine, and water, CrxClyoz H₂O, we find that a sample…

A: (2) Following information about the substance given - Mass of sample = 20.000 g Mass of Chromium Cr…

Q: of Br2, in grams, is required for complete reaction with 9.56 g of A g Br2 of white, solid Al,Bre is…

A: Given,  Balanced chemical reaction,  2Al + 3Br2 ----> Al2Br3 Mass of Al = 9.56 g Molar mass of Al…

Q: (c) In the core of the modern Sun, the density is about 1.25 x 105 kg/m³. What is the concentration…

A:

Q: Let suppose you have a large vat or container of I 2 (diatomic iodide), I tell you there is a total…

A: Given information: Moles of I2 molecule = 6 mol

Q: For the reaction N, + 3H, 2NH, what is the Mole ratio of nitrogen to hydrogen? t. Mole ratio of…

A: In a balanced chemical equation , the stoichiometric coefficients of reactants and products…

Q: 4. A student had a sample of CaCl2 • nH20. He heated the sample until the mass did not change. From…

A: Since you have posted multiple questions, we are entitled to answer the first only. The experiment…

Q: how did you get the numbers beside the balanced equations. such as 4 beside H2O and 2 beside N2.

A: The unbalanced equation is NH4NO2 ---------> N2 + O2 + H2O General rule is that the number of…

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.