How many grams of Al2(CrO4)3 (HINT: F.M. = 401.96) would be required to obtain 12.00 g of oxygen?Place your answer in the box. For your calculation, use molar masses that have been rounded to the closest hundredths of a gram (two places to the right of the decimal point). Express your answer using only a number or numbers without text. Report your result in decimal notation and to the proper number of significant figures. All numbers are measured.

Q: A piece of iron weighting 85.65 g was burned in air. The mass of the iron oxide produced was  118.37…

A: GIVEN: Mass of iron = 85.65 g Mass of iron oxide produced= 118.37g To Calculate: The empirical…

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

A:

Q: Time's Up! This question will walk you through the steps of determining which reactant is limiting…

A: Given values -> Weight of O2 = 81.7gm Molar mass of O2 = 32gm/mole Molar mass of CO2=…

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: How many moles of water H2O, contain 2.0 x 1022 molecules of water?  Express the quantity in moles…

A: Moles = Number of molecules / NA

Q: Calculate the mass of aluminum (Al) produced if 0.862 moles of Magnesium (Mg) react. 2 AIPO4 (aq) +…

A:

Q: Balance the following chemical reaction. Enter the sum of the balanced coefficients as your answer.…

A: Balancing chemical equations makes sure each element in reactants and product sides are in an equal…

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: A vial contains 4.17 x 1023 molecules of an unknown organic compound. How many moles (3 sf) of this…

A: Given: Organic compound contains 4.17×1023 molecules.

Q: 3CO + Fe₂O3- 2Fe + 3CO₂ If 5.06 x 1024 molecules of carbon monoxide (CO) reacts with 6.54 x 1024…

A: From the given reaction it is clear that Co : Fe2O3 : Fe = 3:1:2  According to the data provided, CO…

Q: If 9.09 mol of nitrogen react with excess hydrogen, how much ammonia will be produced, in grams?…

A:

Q: A student weighs an empty beaker at 85.301 g. A sample of Na2SO4·??H2O is added to the beaker, and…

A: Mass of empty beaker = 85.301 g  Mass of beaker + hydrated salt = 86.607 g  Mass of beaker +…

Q: a student finds that they have 0.2929 g of NH4Cl, 0.6234 g of NaCl, and 1.3841 g of SiO2. Calculate…

A: Given Mass of NH4Cl =0.2929 g Mass of NaCl =0.6234 g Mass of  SiO2 = 1.3841g Initial mass of mixture…

Q: Consider the following balanced equation. 3 Ag(s) + 4 HNO3(aq) → 3 AgNO3(aq) + NO(g) + 2 H2O(l)…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: You have 9.99 × 10^25 molecules of water. Find the volume of this in milliliters. Water has a molar…

A:

Q: How many C atoms are present in a 7.57 ng sample of nitrobenzene, C6H5NO₂? Note: 1 ng is one…

A: Given mass of nitrobenzene = 7.57 ngRequired no. Of C-atoms in 7.57ng of nitrobenzene = ? As 1ng =…

Q: If 0.615 g of magnesium hydroxide reacts with 0.950 g of sulfuric acid, what is the mass of…

A:

Q: 3 Cu + 8HNO3 → 3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation, how many grams of water can be made…

A:

Q: 717.7 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen.…

A:

Q: Gaseous butane  CH3CH22CH3  will react with gaseous oxygen  O2  to produce gaseous carbon dioxide…

A:

Q: chemist adds  0.95L  of a  0.0010/molL  copper(II) fluoride  CuF2  solution to a reaction flask.…

A:

Q: Elemental S reacts with O₂ to form SO3 according to the reaction 2S+302-2SO3 as depicted here. How…

A:

Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many…

A: Consider the given balanced equation is as follows; Reaction:        4 NH3g     +      5 O2g      →…

Q: How many grams of chlorine gas must react to give 3.32 g of BiCl3? 2Bi(s)+3Cl2(g)→2BiCl 3(s)…

A:

Q: 3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation how many grams of water can be made…

A:

Q: A 4-M sample of hydrochloric acid, HCl, has a density of 1.42 g/ml. What is the mass % (wt/wt) of…

A:

Q: The balanced equation below shows the reaction which occurs between silver nitrate and sodium…

A:

Q: How

A: moles of water = ( molecules of water ) / ( Avogadro number )  Where :  Molecules of water is 2.0 •…

Q: 3. Using the percentage equation given in the introduction, if 8.912 g of sand are recovered from an…

A: Percentage of a component in a mixture is given by the formula  % = [ mass of component / mass of…

Q: 410.0 mL of a 4.8 mol/L silver nitrate (AgNO 3 ) a reaction flask. Calculate the mass in kilograms…

A: Given Mass of silver nitrate =m g  Molar mass of silver nitrate = 169.87 g/mol Moles = Mass ÷  Molar…

Q: 2 NH3 + 3 CuO → 3 Cu + N₂ + 3 H₂O In the above equation, how many grams of N₂ can be made when 6.1…

A:

Q: For the reaction P4010(s) + 6H₂O(l) → 4H3PO4(aq), what mass (in gram) of P4010 must be consumed if…

A:

Q: What mass in grams are in 5.32x10^22 molecules of CO2? For some reason, I'm getting confused on how…

A:

Q: Give the stoichiometric coefficient for oxygen when the following equation is balanced using the…

A: C3H8O (l) + O2 (g) ------> CO2 (g) + H2O (l)

Q: How many oxygen atoms are on the right-hand side of the following chemical equation? Express your…

A:

Q: A vial contains 4.17 x 1023 molecules of an unknown organic compound.  How many moles (3 sf) of this…

A: given, the unknown organic compound contains " 4.17 x 1023 " molecules.

Q: 2a. Calculate the volumes of ammonia and oxygen required to produce 28 moles of nitrogen dioxide.…

A: Given: The number of moles of NO2 is 28 mol. The given reaction is: 4NH3+7O2→4NO2+6H2O

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.