nixture of Oxides 6. A sample containing only CaCO3 and M9CO3 is ignited to CaO and MgO. weighs exactly half as much as the original sample. Calculate the percentages of CaCO3 and M9CO, in the sample.

Q: By Volume, % By Mass, and Parts Per Million 6 By Volume 100% par (CH COOH HUUSolUion with a volume…

A: The concentration in terms of v/v is calculated by the formula: Concentration=Volume of soluteVolume…

Q: mass

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Q: If a fuel contains 86% C, 9% H2, 1% S and 4% ash (silica) by mass, determine: (b) (i) the total…

A: SOLUTION : CARBON Mass ratio C + O2 = CO2 12 + 32 = 44 Hence 0.86kg of C need (32/12)x0.86=2.293kg…

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Q: 0.634 g of commercial bleach solution required 13.24 ml. of 0.0732 M sodium thiosulfate(Na2S203)…

A: Mass percent of an element  is defined as the mass of element present in total mass of the compound.…

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A: Use stoichiometry of the reaction.  For getting limiting reagent we have to divide by stoichiometry…

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Q: In the experiment of determining the empirical formula of Mgo the crucible was heated three times…

A: Given : Empirical formula of MgO.  To find : Reason for first and third heating process.  Solution :…

Q: The nitrogen content of organic compounds can be determined by the Dumas method. The compound in…

A: A question based on mole concept that is to be accomplished.

Q: 011: calculate mass needed to prepare 5.0L of 0.10N Na,CO,(105.99g/mol) from standard solid.

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Q: Which member of each pair gives the more basicsolution inwater: (a) CaO or SO₃; (b) BeO or BaO; (c)…

A: The ability of a substance to release hydroxide ions in solution is called basicity. If the…

Q: Chlorine reacts with oxygen to form Cl2O7. (a) What is thename of this product (see Table 2.6)? (b)…

A: a. Chlorine reacts with oxygen to form Cl2O7. Given oxide has two chlorine atoms and seven oxygen…

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Q: - many grams of lead metal will be deposited from a solution that contains Pb2+ ions if grams ubmit…

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Q: 6. A 1 gram mixture of CaCO3 and SRCO3 is ignited and converted to CaO and Sro. The mass of oxides…

A: Mass of mixture (CaCO3 + SrCO3) = 1 g  Mass of residue (CaO + SrO) = 0.6 g  % of CaCO3 = ?

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Q: The use of silica to form slag in the production of phospho-rus from phosphate rock was introduced…

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Q: 100.0 g of a ground mineral sample consisting of a mixture of MGCO3 (magnesite) and BaCO3…

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Q: Calculate the percentage by mass of F in C2H2F4

A: Recall the following expression to calculate percentage by mass of F in C2H2F4 percentage by mass of…

Q: (a) In 20 or less of yourown words define the term “leachate”and describe how it forms.

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

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Q: A mixture containing only BaO and CaO weighs 2.00 g. the oxides are converted to the corresponding…

A: Given:Mass of BaO + CaO = 2.00 gMass of BaSO4 + CaSO4 = 4.00 g.

Q: One method of removing CO2(g) from a spacecraft is to allow the CO2 to react with LiOH.…

A: We make use of the above equation and also the given data to find the volume of CO2 required.…

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Q: What is the mass percentage of C in CH₃CH₂OH? Provide an answer to two decimal places.

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Q: Approximate percent potassium there should be in potassium tris(oxalato)aluminate(III).

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Q: The accompanying photo shows the reaction between asolution of Cd1NO322 and one of Na2S. (a) What is…

A: a) Cadmium nitrate[Cd(NO3)2] reacts with sodium sulfide (Na2S) to form cadmium sulfide(CdS) and…

Q: 7 whichtof the porlowing eompounds pusbegse a goi omiao (circle all possibie anowers) ?

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

Q: A student is given a 1.3308 g of an unknown copper compound. Following isolation by displacement by…

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Q: How many grams of H2 will result from the reaction of 100 g of CaH2 with excess H2O?

A: The Reaction is  CaH2+2 H2o- Ca(oH) 2+ 2H2 1 mole of CaH2 will give 2 miles of H2

Q: State a reason for each of the following statements: (i) Fluorine never exhibits any positive…

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Q: What is the mass percentage of C in caffeine, CsH1oN4O2? Provide an answer to two decimal places.

A: Mass percentage of Carbon in Caffeine is 6.18%

Q: Find the oxidation state of S in S2O32-

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Q: Dunat are the paducts dusts from the singe-replacement reacttiano curs)+ AgNOgfag

A: Answer - A single replacement reaction, sometimes called a single displacement reaction, is a…

Q: A silver nitrate solution contains 8.64 g of primary standard AgNO, (MM = 169.87 g/mol) in 1.00 L.…

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Q: 10. The oxidation number of sulfur in (Na:S2Os) is? The answer is .... ....

A: Dear student this question is related to inorganic chemistry.

Q: If 55% of the SO2 could be removed by reaction with powdered CaO to formCaSO3, how many tons of…

A: Given: The percentage of SO2 removed=55% To find: The number of tons of  CaSO3

Q: The US uses about 21 mil per day. Calculate how soline. (Neglect all natura ains into shorter chain…

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Q: Number these in erder Of ease of hude |= eosiest to huylrokze,4= handst to hujdrolye. SH iV GHs C=N

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Q: If 55 g of SiO2  glass is placed into 111 L of 0.032 M HF, is there enough HF to dissolve all of the…

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Q: Suppose that a semiconductor device is using a 9.17-mg sample of a hypothetical element By, that is…

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Q: If cobalt(II) sulfate is heated too strongly, the following reaction will occur CoSO4(s) à CoO(s) +…

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Q: Suppose that a semiconductor device is using a 9.04-mg sample of a hypothetical element By, that is…

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Q: Plain carbon steel might have a mass percentage of 0.3% carbon (C) by weight; the rest is iron (Fe).…

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Q: The phosphorus in a 0.2091-g sample was precipitated as the slightly soluble (NH4)3PO4 -12M0O3. This…

A: Given, mass of sample = 0.2091 g mass of PbMoO4=0.2922 g

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.