For the reaction 2S + 30, 2SO, how many grams O, will react with 8.12g sulfur?

Q: How many molecules of CO2 are produced if 67.23g of C2H8 are reacted in excess oxygen?

A: The combustion of C2H8 in the excess of oxygen can be represented by the following reaction:-…

Q: The carbonate of metal M has the formula M2CO3. This metal carbonate reacts with hydrochloric acid…

A: Answer :-  a) Moles Of HCl = 6.75 ×10-3 (mol)  b) Moles Of M2CO3 = 3.38 ×10-3 (mol)  c) Molar mass…

Q: Silicon nitride (Si3N4), a valuable ceramic, is made by the direct combination of silicon and…

A: Percent yield is defined as the percentage ratio of the actual yield to the theoretical yield…

Q: 5. How many moles of SO2 are required to convert 6.8 g of H2S according to the following reaction?

A: The moles of ClO2 in 7.2 g is, number of moles=given massmolar mass…

Q: How many moles of Fe(OH)3 are produced when 85.0L of iron(IlI) sulfate at a concentration of 0.600…

A:

Q: From the given reaction: 2 I2 + KIO, + 6HCI = 5ICI + KCI + 3H,0 How many grams of iodine are needed…

A: 2I2 + KIO3 + 6HCl --> 5ICl + KCl + 3H2O Weight of ICl = 28.6 gm

Q: Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog: H2(g)…

A: Given, mass of H2 = 11.3 g we know, molar mass of H2 = 2.016 g/mol molar mass of HI = 127.911 g/mol…

Q: The boride Nb3B4 is made by the direct combination of niobium and boron at high temperature. How…

A: First write down the reaction between Nb and B. Then find out mol to mol ratio to calculate moles of…

Q: How many grams of magnesium oxide can be produced by reacting 0.248 g magnesium that is 97.5% pure…

A: Given mass of Magnesium = 0.248g% purity of Magnesium = 97.5%No.of molecules of oxygen = 5.36 x…

Q: Hydrolysis of the compound B5H9 forms boric acid, H3BO3. Fusionof boric acid with sodium oxide forms…

A: Given: Mass given of borate salt (Na2B4O7) =151 g  Mass to be calculated of B5H9 = x (say)

Q: iHow many atoms of Al are needed to react with 34.5 grams of O, gas? 4Al + 30,→ 2AI,O,

A: Solution- mass of O2=34.5 gMoleculear mass =32g/molNumber of moles=given massmoler…

Q: *** What amount (in mol) and what mass (in kg) of carbon dioxide are produced when 20 gallons…

A:

Q: 2 Sr + 0, 2 Sro (is the reaction balanced?) 4. How many moles of Sr would synthesize with 3.5 moles…

A:

Q: 6. What is the maximum amount, in grams, of CO2 produced when 6.00grams of carbon are reacted with…

A: The chemical equation for given reaction is as follows,

Q: 4.Potassium superoxide, KO2, is used in rebreathing gas masks to generate oxygen. 4KO;(8) + 2H,O(1)…

A: In a chemical reaction, the limiting reagent, or limiting reactant is defined as the substance that…

Q: If 10.0 mL of 2.50 M SrS(aq) is made to react with 25.0 mL of 1.50 M ZnS04(aq), how many moles of…

A: Molarity of any solution is obtained by dividing the number of moles of solute by the volume of…

Q: Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog:…

A:

Q: 4. An alloy of solder is tin and lead. Calculate the number of moles of each metal that are pres-…

A: Given that an alloy of solder is Tin(Sn) and Lead(Pb) .  Percentage amount of Sn present in alloy =…

Q: 5. Methane (CH) undergoes combustion according the following reaction: CH. (g) + O2 (g) → CO: (g) +…

A:

Q: X

A: Here we are calculating mole by using stoichiometry

Q: Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog: N2(g)…

A: 28 g of nitrogen gas produces 34 g of ammonia. The amount of ammonia produced by 14.2 g nitrogen gas…

Q: What is the theoretical yield in grams of iron (III) oxide (MM=159.7 g/mol) if 215.4 g of Fe are…

A:

Q: 4.41 The percentage yield of the following reaction is consis- tently 87%. CH,(g) + 4 S(g) →CS,(g) +…

A: Given reaction :-  CH4(g) + 4S(g) -----> CS2(g) + 2H2S(g)  Mass of CS2 obtained = 80.0 g

Q: Consider the reaction: ANH3(g) + 502(g)-2NO(g) + 6H;O(g) When 0.248 mol of NH3(g) is reacted with…

A:

Q: 1. Consider the production of phosphorus trichloride (PCI,) from phosphorus (P) and chlorine (Cl,)…

A:

Q: Consider the reaction: 3A+4B -> 3C  What is the limiting reactant if 1 mole of A is allowed to…

A:

Q: 6). Using the expression: 2NaOHjag) + H,SOdes) → Na,SO, (a9) + 2H,O) 4 How many grams of NaOH are…

A: Given mass of Na2SO4 = 60.0 g  Molar mass of Na2SO4 = 142.04 g.mol-

Q: The eruption of Mount St. Helens volcano in 1980 injected 4 * 108 kg of SO2 into the atmosphere. If…

A: Given data: 4 x 108 kg of SO2   The mole of SO2 is calculated as follows: Mole=massmolar…

Q: Sodium metal and chlorine gas can be produced by the electrolysis of molten  Sodium chloride as…

A: The reaction taking place is given as => 2 NaCl (l) --------> 2 Na (l) + Cl2 (g) Given : Mass…

Q: A sample of calcium weighing 2g. The calcium was precipitated as calcium oxalate, then it was…

A: Given that,  Weight of a sample of calcium Ws= 2 g Weight of empty crucible = 2.5 g Weight of…

Q: 1.- Calculate-the mass ff Ba3(PO4)2 produced from the reaction of 0.85 g NazPO4:12H20 with excess…

A: The relationship between moles, mass and molar mass is: Moles = MassMolar mass

Q: 4.40 When iron and steam react at high temperatures, the fol- lowing reaction takes place: 3 Fe(s) +…

A:

Q: 3Al + 3NH4ClO4 → Al2O3 + AlCl3 + 3NO + 6H2O what mass of ammonium perchlorate (in kg) should be…

A: Given,  3Al + 3NH4ClO4 → Al2O3 + AlCl3 + 3NO + 6H2O The mass of aluminum = 5.00 Kg  The mass of…

Q: B. Balance the following equations and indicate the type of reaction: 1) H,S so, H,0 2) C;H,0 co,…

A: 1. Balanced equation: 2H2S + 3O2 → 2SO2 + 2H2O Type of reaction => combustion reaction.

Q: If 0.35g of Al reacts with excess diatomic oxygen, how many grams of the product Al2O2 are formed

A: Given, Mass of Al = 0.35 g   Moles of Al can be calculated as :

Q: Thermite reaction is necessary to produce molten iron. This reaction involves Fe3O4 and Al and is…

A: For the given reaction: 8Al      +   3Fe3O4 →   9Fe  +  4Al2O3 8 mol        3 mol         9 mol    4…

Q: Calculate the theoretical yield in moles NH3 from the complete reaction of 15.6 grams H2 in the…

A: The chemical reaction occurs according to the stoichiometry of the reaction. The reagent which is…

Q: Silicon nitride (Si3N4) a valuable ceramic, is made by the direct combination of silicon and…

A: Unbalanced reaction can be written as

Q: Consider the reaction 3X + 2Y - 5C + 4D With excess Y, how many moles of X are needed to produce…

A:

Q: Consider the reaction: 2Sb(s) + 312(s) → 2Sbl3(s). Determine the limiting reactant and the…

A: First of all we will calculate moles of SB and I2. Limiting reagent is that substance which is…

Q: 1) Using the following equation: I + KIO: + HC1 ------> ICI + KC + H20 Calculate how many grams of…

A: (1)  Given following unbalanced Chemical equation -  I2 + KIO3 + HCl ---------> ICl + KCl + H2O…

Q: how many grams of sulfur (S) are needed to react completely with 45 g of Al in the synthesis Al2S3?

A:

Q: 2 Pb(s) + 0,(g) 2 PbO(s) An excess of oxygen reacts with 451.4 g of lead, forming 302.8 g of…

A:

Q: What mass of solid La(IO3)3 is formed when 50.0 mL of 0.25M lanthanide ion is mixed with 80mL of…

A:

Q: A 0.1799 g sample of an organic compound was burned in a stream of oxygen, and the CO2 produced was…

A: Given: Mass of sample = 0.1799 g Mass of BaCO3  = 0.5613 g When a sample of organic compound is…

Q: In an experiment, 12.4 g of KClO3 were carefully decomposed, and 4.52 of O2 gas were collected.…

A: Given : Mass of KClO3 reacting = 12.4 g Mass of O2 produced actually = 4.52 g And the reaction…

Q: A 0.1799g sample of an organic compound was burned in a stream of oxygen, and the CO2 produced was…

A: The balanced equation for the above process is : CO2 + Ba(OH)2------------->BaCO3 +H2O The amount…

Q: Aspirin can be synthesized from salicylic acid and acetic anhydride in the presence of catalytic…

A:

Q: How many grams of Ca(NO3)2 can be produced by reacting excess HNO3 with 6.55 g of Ca(OH)2?

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.