Mass Number of atoms 1 atom of Mg amu atom(s) Katomic mass from the periodic table) 1 atom of Mg atom(s) Kuse 1 amu = 1.66 x 10-24 g to convert amu to grams) 1 mole of Mg Latom(s) g/mole (molar mass from the periodic table)

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: Given -> CaCO3(s) -----> CaO(s) + CO2(g)  Weight of sample = 2.237 gm  Weight of CO2 formed =…

Q: For the following reaction, 7.97 grams of nitrogen gas are allowed to react with 1.01 grams of…

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Q: If you have 42.5 moles of glucose (C6H₁206) approximately how many grams do you have? #3

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Q: balance the following chemical equation  C3H6 (g) + O2 (g) ----->  CO2 (g) + H2O (g)

A: Balance the following chemical equation  C3H6 (g) + O2 (g) →  CO2 (g) + H2O (g)

Q: Convert 4.18 x 1021 molecules/formula units of X4Z, into grams of the same compound. (Assume that…

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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 crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Mass of crucible = 26.639 g Mass of crucible + mass of Na2SO4·xH2O = 27.085 g Therefore mass of…

Q: Aspirin can be prepared from salicylic acid ( C7H6O3), which has a molar mass of 138.12 g/mol, and…

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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: Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and…

A: Percentage yield of a compound can be calculated using following formula: Percentage yield =…

Q: Liquid octane (CH₂(CH₂) CH3) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide…

A: Limiting reactant - Reactant species which react completely or present in less amount in reaction.…

Q: A 4.77 g quantity of solid rubidium metal is combined with 3.44 g of magnesium chloride crystals…

A: The given reaction is as follows: 2Rb(s) +1MgCl2(s) → 1Mg(s) + 2RbCl(s) The given mass of rubidium…

Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of…

A: Given: Mixture of metal X and Z. And mass percent of X and Z in the mixture.

Q: C4H10S(l) + O2(g)= complete and balance the combustion reaction.

A: Due to combustion reaction oxidation of the compound takes place.

Q: An unknown mass of NasPO4(s) is dissolved in water to form 50.00 mL of solution. This is Solution A.…

A: Let the mass of Na3PO4 dissolved = X gm Molar mass of Na3PO4 = 163.94 gm Number of moles of Na3PO4 =…

Q: A 4.98 g quantity of solid rubidium metal is combined with 3.44 g of magnesium chloride crystals…

A: The reaction is given as: 2Rb(s)+MgCl2(s)→Mg(s)+2RbCl(s) The mass of rubidium = 4.98 g The molar…

Q: H₂C HU H C CH- CH 0 The compound's molecular formula (eg c13h1201, write 1 if 1 is the subscript) is…

A: The molecular formula of a compound shows the atomic symbols of all the constituting atoms present…

Q: A crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Since on heating the compound, the mass of water will be lost as it will get vaporised  Hence the…

Q: QUESTION 6 Convert 2.09 moles NaOH to grams. 174 grams NaOH 83.6 grams NaOH 2. grams NaOH 0.0523…

A: 6. Given;

Q: Use 1 decimal point for all atomic masses. 82.1 g of Ni3C(s) are reacted with 1.80 g of H2(g) by the…

A: The reaction given is Ni3C(s) + 2H2(g) --> 3Ni(s) + CH4(g)  Since mass of Ni3C taken = 82.1 g And…

Q: Moles 6.87 moles CH, 1.32 moles 0₂ Mass (grams) 12.5 g N₂ Particles (Atoms or Molecules) Volume (L)…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts…

Q: complete reaction

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

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Q: Writing and Balancing Chemical Equations 13. Sulfuric acid is a component of acid rain formed when…

A: Given,When gaseous sulfur dioxide reacts with gaseous oxygen and liquid water to form aqueous…

Q: For the following reaction, 11.2 grams of glucose (C6H12O6) are allowed to react with 15.5 grams of…

A: First we need to find the limiting reactant. It is the reactant that gets consumed first.   To find…

Q: 1. As of today Silver is trading at $27.10 per ounce. Recall that 1 ounce = 28g. If we mine 2.5x106…

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Q: A beaker contains 100.0 mL of water. To it is added 10.0 mL of dilute nitric acid (HNO3). Calculate…

A: Volume of water = 100.0mL  Volume of dilute nitric acid = 10.0mL Total volume = 110 mL  Density of…

Q: In measuring the sample that is placed into a SCUBA diver's tank it has the following gases: 52.00 g…

A: A numerical problem based on percentage concentration, which is to be accomplished.

Q: If you place 6.46 X 1027 molecules of Ca(OH)2 into this equation, how many moles of Ca(NO3)2 will be…

A: Given: The reaction is as follows: 2HNO3+CaOH2→CaNO32+2H2O The number of molecules of…

Q: What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl =…

A: Molarity (M) : Number of moles of solute present in 1 litre solution is called molarity (M)…

Q: [Tutorial: Empirical formula) This question will walk you through the process of calculating the…

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Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

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

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Q: A 800 mL sample of nitrogen (N2) was col- lected by displacement of water at 24°C un- der a total…

A: Hii there, since there are multiple questions posted. We are entitled to  answer first question. If…

Q: How many sodium ions are present in 20.0 mL of 0.10 M Na,S? A. 0.002 В. О.004 С. 1.20 х 1021 D. 2.41…

A: Given  Volume = 20 mL               = 20 × 10-3 Liter           ( 1 mL = 10-3  Liter )…

Q: You are trying to determine the formula for hydrated CaSO4 and you found the following: Mass of…

A: Given: Mass of hydrated compound = 3.09 g Mass of only CaSO4 = 2.43 g  So the mass of water present…

Q: Balance each of the chemical equations. Fe(s) + 02(g) → Fe203(s) _Na3PO4(aq) _NH4NO3(s) – а. b.…

A: In a balanced chemical reaction the number of atoms of each element is same on both the reactants…

Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

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Q: How many grams of Na3PO4 are needed to react with 2.535 moles of Ba(NO3)2 in the reaction2 Na3PO4…

A: The balanced chemical equation for the reaction is:2 Na3PO4 + 3 Ba(NO3)2 ———> Ba3(PO4)2 + 6…

Q: them from smallest to largest by mass. 0.75 mol H20(liq) 7.0 g N2(g) 0.55 mol Ar(g) 0.45 mol N2(g)

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

Q: I. Name the two organic compounds. Br OH B. SH O =¢ si Br C =0 Catla

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Q: The molecular weight of FeCl2 is 151.91 g/mol.   In this assignment, you will determine the mass %…

A: In the given question we have to calculate the % mass of FeCl2 in unknown mixture by titrating with…

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.