7. The zirconium oxalate K,Zr(C,04)3(H2C204) · H20 was synthesized by mixing 1.68 g of ZroCl, · 8H20 with 5.20 g of H2C204 · 2H20 and an excess of aqueous KOH. After 2 months, 1.25 g of crystalline product was obtained, as well as aqueous KCl and water. Calculate the percent yield.

Q: Metals react with oxygen gas to produce oxides with the general formula MxOy. Write a balanced…

A:

Q: Uranium can be isolated from its ores by dissolving it as UO2(NO3)2, then seperating it as a solid…

A: Solution

Q: If you added an excess of CaCl 2 ⋅ 2 H 2 O to 1.035 g Na 3 PO 4, how many grams of Ca 3 ( PO 4 ) 2…

A: Balanced chemical equation for the reaction is given below.

Q: In the smelting of iron ores, the reduction of iron oxides in a blast furnace is accompanied by the…

A: GIVEN :- Reaction (1): 3 Fe₂O3(s) + CO(g) -----> 2Fe3O4 (s) + CO₂(g)   Reaction (ii): Fe3O4 (s) +…

Q: a. Ag*, Pb2+ b. Mn2+, Fe+ С. c. Ni2+, Al3+

A: a. Ag+, Pb2+ Here the basic medium --> OH- excess will precipitate Pb(OH)2 and leave Ag+ in…

Q: 195 kg of H3PO4 was extracted from 310 kg of natural phosphorite. Natural phosphorite Calculate the…

A: Molecular formula of calcium phosphate is Ca3​(PO4​)2​.Its molar mass is 3(40)+2(31)+8(16)=310…

Q: 2. 0.4852 g sample of iron ore is dissolved in acid, oxidized to +3 state and precipitated as…

A:

Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg*²). The solution is…

A: Given: Mass of sample = 5.276 g The solution is diluted = 500 mL three 100 mL of solution titrated…

Q: In the laboratory you are given the task of separating Ca2+ and Ag* ions in aqueous solution. For…

A: The compound formed by every metal ion with another anion possesses a different solubility depending…

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A: First of all we have to calculate the moles of Fe2O3. From that only we get the moles of Fe and…

Q: Elemental phosphorus is used in the semiconductor industry. It can be obtained from an ore called…

A: The reaction above can be correctly written as below: 4Ca5(PO4)3 F + 18SiO2 + 30C ----->  3 P4 +…

Q: What % fraction of the electrons would you have to remove from a 5.0 mg sphere iron in order to make…

A: Given:  mass of Fe sphere = 5 mg = 0.005 g charge on sphere= 3C  we know that, atomic mass of…

Q: Uranium can be isolated from its ores by dissolving it as UO2(NO3)2, then separating it as solid…

A: The balanced chemical equation is as follows,

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A: Given: The mass of iron (Fe) ore A is 1.500 g The mass of pure Fe2O3 in ore A is 0.5215 g The mass…

Q: Cr203. What mass (in grams) of Cr203 is produced if 0.147 g of chromium metal is converted…

A:

Q: An alloy of Sn, Pb, and Cd has a mole ratio of Sn to Pb of 2.73:1.00, and the mass ratio of Pb to Cd…

A: Given,An alloy of Sn, Pb, and Cd has a mole ratio of Sn to Pb of 2.73:1.00, and the mass ratio of Pb…

Q: Ammoniacal nitrogen can be determined by treatment of the sample with chloroplatinic acid, the…

A: The precipitate contains two mols of ammonia for per mol of Pt yielded on ignition. Now by…

Q: Uranium can be isolated from its ores by dissolving it as UO2 (NO3 )2 , then separating it as solid…

A:

Q: Sulfur compounds are converted to H2SO4 while NO, compounds are converted to HNO3, and NH3 reacts…

A: Since you have posted multiple sub-parts questions, as per our company guidelines we are supposed to…

Q: The Hall process for the production of aluminum involves the reaction of aluminum oxide with…

A: Mass of aluminum = 10 kg                             = 1.0*103 g     Number of moles of Al produced…

Q: Copper is obtained from sulfide ores through a two-step process consisting of roasting the ore in…

A:

Q: Caustic soda, NaOH, can be prepared commercially by the reaction of Na 2CO 3 with slaked lime,…

A:

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A:

Q: Ammoniacal nitrogen can be determined by treatment of the sample with chloroplatinic acid; the…

A: When ammonium chloroplatinate decompose it produce ammonia gas, platinum, chlorine gas, and…

Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: A question about elements that is to be accomplished.

Q: The reaction of barium with sulfur is similar to that of magnesium with sulfur. Write the balanced…

A: A balanced chemical equation is the one in which the elements of the reactants becomes equal to the…

Q: 5. The phosphorus in a sample of phosphate rock weighing 0.5428 g is precipitated as MGNH,PO4 .6H20…

A:

Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg"). The solution is…

A: Given that -  Mass of sample of alloy, Al-Mg = 5.276 g  Mass of alumina, Al2O3 = 1.444 g  Molar mass…

Q: A 0.5664 g ore sample is dissolved in nitric acid and then filtered. The aluminum is present in…

A: The ore sample contains aluminum and is extracted using dissolution and filtration. The solution is…

Q: the aluminum (FW= 26.98 g/mol) in a 1.200 g sample of impure ammonium aluminum sulfate was…

A: molar mass of NH4(AlSO4)2= 237.1452g/mol molar mass of Al2O3=101.96g/mol molar mass of Al…

Q: In the laboratory you are given the task of separating Ag* and Fe* ions in aqueous solution. For…

A: Inorganic cations can be separated using different reagents. For the separation of Ag+ and Fe2+, the…

Q: 0.5 g sample of an alloy containing 30% (m/m) iron (MM 55.84 g/mol) is dissolved in acid and diluted…

A: Mass of iron in alloy can be calculated using the formula:Mass % = (Mass of element / Mass of…

Q: If 0.232 moles of K[Ag(CN)2], MW = 199.0 g/mol, were used in the recovery reaction above, what mass…

A: Given data :  Moles of K[Ag(CN)2] = 0.232 moles  Molar Mass of Zn(CN)2= 117.4 g/mol  1 mol of…

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A:

Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: Explanation:  Option D is correct  [C,H,O,N]      Soil organic matter is composed chiefly of carbon,…

Q: A mixture containing only FeCl3 and AlCl3 weighs 5.95g. The chlorides are converted to hydrous…

A:

Q: 7. Pt(NH;),Cl4 8. Fe(CO);

A: Here I have mentioned IUPAC names for the top two molecules     Pt(NH3)2Cl4-…

Q: 5. A 0.5664 g ore sample is dissolved in nitric acid and then filtered. The aluminum is present in…

A:

Q: 0.5166 grams of iron mineral is dissolved with acid and Fe2+ is titrated with 42.96 mL of 0.0213 M…

A: Solution -  According to the question - Given values are - Molarity of Na2Cr2O7 is 0.0213 M Volume…

Q: g. TiO, h. FeCl, i. P,O,

A: PART 6B (g.) TiO2  So, name of the compound is given by as follows- Titanium dioxide Or Titanium(IV)…

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A: % Fe3O4 =Amount of Fe3O4 in orein gAmount of sample in g×100%

Q: A chemist needs to produce 100 grams of gallium chloride, when gallium reacts with hydrochloric acid…

A:

Q: 6. Under suitable conditions, thiourea, CS(NH2)2, is oxidized to sulfate by solutions of potassium…

A: we establish the relation between the  mole  of reactant and mole of product

Q: Calculate the percentage of Fe in pure iron(II) ammonium hexahydrate: (NH4)2[Fe(SO4)2] x 6H2O

A: The solution is as follows :

Q: What is the composition, in atom percent, of an alloy that contains a) 35 g copper and b) 49 g zinc?

A: Given :-  mass of Cu in alloy = 35 g  atomic wt. of Cu = 63.55 g/mol mass of Zn in alloy = 49 g…

Q: A mixture containing only FeCl3 (162.21) and AlCl3 (133.34) weighs 5.95 g. The chlorides are…

A: Let x and y be the masses of FeCl3 and AlCl3 in the 5.95g mixture, respectively. Thus, x + y = 5.95g…

Q: g. Aluminium in 1.200 g sample of impure ammonium aluminium sulphate was precipitated with aqueous…

A: Given: Mass of the sample=1.200g Mass of anhydrous Al2O3=0.1798g Atomic weight of Al=26.98 g mol-1…

Q: 6. Consider the following reaction Cas(PO.)2 + 3 H,so, → 3 Caso, + 2 H;PO, a. What masses of calcium…

A: Limiting reagent It is a reagent that will be consumed completely in a reaction and determines the…

Q: Antimony is alloyed with lead to increase the rigidity of components used in the construction of…

A: Percentage by mass of an element in an alloy can be calculated as the mass of that element in an…

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.