Four grams of a mixture of calcium carbonate and sand is treated with an excess of hydrochloric acid, and 0.880g of CO2 is produced.what is the percent of CaCO3 in the original mixture?

Q: what mass of CO2 will be produced when 125 g of C8H18 react completely?

A: the balanced equation : C8H18 + (25/2)O2 = 8CO2 + 9H2O the balanced equation  with whole number:…

Q: How many grams of NH3 can be produced from 4.25 molof N2 and excess H2

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Q: If 3.35g of Cu(NO3)2 is obtained from allowing 2.25g of Cu to react with excess HNO3,what is the…

A: Given, Mass of Cu = 2.25 g   Moles of Cu can be calculated as:

Q: when a mixture of solid Na2CO3 and NaHCO3 is heated, only NaHCO3 decomposes. The products of this…

A: A numerical problem to find the percentage by mass of NaHCO3, when it is present in a mixture with…

Q: If 1.03 mole of NiCl2 is mixed 1.52 mole of K3PO4, how many moles of Ni3(PO4)2 will form?

A: Moles of NiCl2 = 1.03 Moles of K3PO4 = 1.52 Moles of Ni3(PO4)2 =?

Q: What is the theoretical yield of MgO from the combustion of 5.25 x 10^23 atoms of Mg and 4.69 x…

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Q: An organic liquid is either methyl alcohol (CH3OH), ethyl alcohol (CH3CH2OH) o a mixture of the two.…

A: The combustion reaction of methyl alcohol and ethyl alcohol:

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A:

Q: A water-soluble salt formed by Hg2+ and  nitrate  95.201 g95.201 g was dissolved in a solution…

A: Given: Mass of Hg(NO3)2 = 95.201 g. And mass of sodium sulfide i.e. Na2S = 16.642 g.

Q: A 0.6247g sample of an ionic compound containing the bromide ion (Br-) is dissolved in water and…

A: Bromide ion reacts with silver nitrate and silver bromide is precipitated during this reaction.  The…

Q: Dinitrogen tetroxide, N2O4 is an important component of rocket fuels. At 25 ℃, N2O4 (92.01 g/mol)…

A: Given that, At 25 ℃, N2O4(92.01 g/mol) partially dissociates into NO2 (46.01 g/mol). In an…

Q: When 2.50g Iron (II) hydroxide is treated with 2.50g of phophoric acid. 1.99g of iron(II) phosphate…

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Q: how many grams of CO2 are present in 8x10^12 molecules of CO2?

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Q: How many grams of Al2O3 will be produced if 2.57g Al reacts with excess O2

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Q: What is the mass in grams of carbon dioxide that would be required to react with 43.4 g of LiOH in…

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Q: How many grams of chlorine gas can be produced from the decomposition of 146.8 g of AuCl3 by this…

A: According to the question, Given mass of AuCl3 = 146.8 g  Molar mass of AuCl3 is given by  = 303.329…

Q: 3. If 3.69 x 10³ mole of CO2 are produced in the following reaction, how many g l205 were present to…

A: Moles of CO2 = 3.69 × 10-3 mole Given reaction is., I2O5(s) + CO(g) ---> I2(s) + CO2(g)

Q: What mass of Ca(OH)2 will react with 25.0 g of HCl?

A:

Q: The single largest use of phosphoric acid is in the production of fertilizer. How many grams of…

A: We have given that  The single largest use of phosphoric acid is in the production of fertilizer.…

Q: if 3 mol Al reacts with excess O2. How many moles of Al2O can be formed?

A: HE REACTION WILL BE AS FOLLOW: 4Al(s) + O2(g)----------->2Al2O(s)

Q: Chromiun metal can be produced by the reduction of Cr2O3 with elemental silicon.  2 Cr2O3 + 3 Si…

A: Given: Mass of Cr2O3 = 350.0 g Mass of Si = 235.0 g Mass of Cr = 213.2 g

Q: What is the mass in grams of carbon dioxide that would be required to react with 17.1 g of LiOH in…

A: Given,  2 LiOH(s) + CO₂(g) → Li₂CO₃(s) + H₂O(l) mass of LiOH react = 17.1 g mass of CO2 required = ?…

Q: What is the molar mass in g/mol of Al2(COO)3?

A: The formula of aluminum carbonate can be written as - Al2(CO3)3

Q: what amount of Al2O3 is peoduced from the reaction of 3.0 mol Al with 2.0 Fe2O3

A: Given, moles of Al = 3.0 mol Moles of Fe2O3 = 2.0 mol Chemical equation: 2Al + Fe2O3 --> Al2O3 +…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Given: When morphine undergoes combustion, carbon dioxide is produced. Mass of mixture            =…

Q: What is the maximum weight of Cl2 that can be produced by reacting 35.0 grams of KMnO4 with 45.0…

A: Given:Mass of KMnO​​​4 =35.0 gMass of HCl = 45.0 gLaw of Conservation of Mass:- This law states that…

Q: what is the mass in grams of carbon dioxide that would be required to react with 19.6g of LiOH in 2…

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Q: If 6.8 g of a hydrocarbon that is 83.2% C by mass is burned with O2 to make CO2 and H2O,  what mass…

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Q: How to balance this equation? NH3(g) + O2(g) ----> NO(g) + H2O

A: The reaction is balanced by making the number of elements of each atom equal on left side and right…

Q: 2AgNO3 + BaCl2 --> 2AgCl + Ba(NO3)2                                                    How many…

A: Given :  2AgNO3 + BaCl2 --> 2AgCl + Ba(NO3)2  number of moles of AgNO3 = 0.150 mol  To calculate…

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

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Q: (b) In the reaction with 50.0 g of magnesium and 50.0 g of copper(II) nitrate how many grams of the…

A: Oxidation means loss of electrons or increase in Oxidation state. Reduction  means gain of electrons…

Q: When 1.5173 g of an organic iron compound containingFe, C, H, and O was burned in O₂, 2.838 g of CO₂…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: If a chemist needs 33.1 grams of PO10, how many moles of P4 are needed to react with excess oxygen?

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Q: 3KOH+H3PO4⟶K3PO4+3H2O what mass of phosphoric acid in grams is needed to produce 2.15 mol of water?

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Q: a chemist reacts 45.0 mL of 3.4 M AgNO3 with an excess of Na2CrO4. How many grams of silver chromate…

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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.