How many grams of Mg2+ are present in 2.76 grams of magnesium chromate?  ______grams Mg2+. How many grams of magnesium chromate contain 3.53 grams of Mg2+?  _____ grams magnesium chromate.   1. How many grams of N are present in 4.61 grams of nitrogen dioxide ?  ____grams N. How many grams of nitrogen dioxide contain 1.12 grams of O ? _____ grams nitrogen dioxide.

Q: if you have 5.66 g of iron (III) chloride, how many grams of sodium chloride can you make?…

A: First of all calculate the number of moles of FeCl3 used by using the relation- Mole = mass/molar…

Q: 1. How many grams of Cr³* are present in 1.09 grams of chromium(III) nitrate? grams Cr3+ 2. How many…

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Q: Upon heating 112 g MgSO4 · 7 H2O: (a) how many grams of water can be obtained? Enter the value of…

A: The mass, number of moles and molar mass are related by the following formula Number of…

Q: How many grams of NaCl are there in 3.4 moles of NaCl?  a)  3.4 grams b)  17.19 grams c)  198.696…

A: Given moles of NaCl = 3.4 mol  Molecular mass of NaCl = (23 + 35.44) g/mol = 58.44 g/mol

Q: A typical tablet of regular strength Tylenol contains 325 mg of acetaminophen (C8H9NO2). How many…

A: Given: Mass of acetaminophen in tablet = 325 mg = 0.325 g                            (Since 1 g =…

Q: C5H12 + _____ O2 ---> 5CO2 + 6H2O What coefficient must be used to balance the equation above? a. 4…

A: The balanced chemical reaction is the reaction in which number of elements presents in reactant and…

Q: (a) Calculate the molar mass of ammonium nitrate, NH4NO3. (b) What is the mass percent of nitrogen…

A: (a) Molar mass of a molecule = sum of atomic masses of all the constituent elements      Molar mass…

Q: What is the volume in milliliters of 0.350 sulfuric acid, H2SO4 contains 1.25 g HzSO4?

A: Molarity of any solution can be calculated by dividing the number of moles ofsolute by the volume of…

Q: How many grams of rhodium are in a 157.9-gram sample of RhCl 3? The molar mass of RhCl 3 is 209.26…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: How many grams of sodium bicarbonate are in 3.056 moles of sodium bicarbonate (84.007 g/mole)? Group…

A: The number of atoms, ions, and molecules present on a given amount can be determined by the “Mole…

Q: calculate the mass in grams of each of the following samples. 251 moleof lithium 51 molesof…

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Q: How many grams of CuCl2 (MW = 134.45 g/mol) is needed to prepare 100.0 mL of 0.2418 M CuCl2?…

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Q: How many hydrogen ????? are there in 75.9 g of octane, C8H18

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Q: How many grams of Oxygen are needed to make 7.1 g of Chlorine? SeCl6 + O2 --> SeO2 +  Cl2

A: First we balance the reaction,  then we calculate the amount of O2 required to prepare 7.1 g of Cl2.

Q: 1. How many grams of Cu2+ are present in 3.29 grams of copper(II) carbonate? 1.692 ]grams Cu2+. 2.…

A: Mass of copper (ii) carbonate = 3.29 g Mass of Cu+2 = 3.26 g Molar mass of copper (ii) carbonate =…

Q: How many moles are in 7.82 g of aspartame? C14H18N2O5   A. 0.2569002 grams C14H18N2O5   B.…

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Q: What mass (in kg) does 4.41 moles of copper have?     0.784 kg     0.444 kg     0.280 kg…

A: Given -  No of moles =4.41 moles  Molecular mass of  copper (M) = 63.546  g / mol No of moles = 4.41…

Q: NItroglycer in (e3 HSN30,) 403 Hs Ng Oq >6Ngt 13c0, + 10 tgO + Og what is the maximum amount of Og…

A: Given  Reaction  4C3H5N3O9   → 6 N2 + 12CO2  + 10H2O + O2 Mass of O2 = 8.00 × 102 gram  Mass of O2…

Q: 20.  The number of moles in 112 g of acetylsalicylic acid (aspirin) C9H8O4 is    A. 1.61   B.…

A:

Q: 2 + 2 Mg3P2 ? Pb3P4 + 6 MgO How many moles of PbO2 do you need to produce 80 moles of MgO? How…

A: From the balance equation the conversion factor relating PbO2 and MgO is,

Q: How to calculate grams of aluminum chloride using 2AI + 6HCI -> 2AICI3 + 3 H2 formed with 135 g of…

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Q: How many grams of AlCl3 are required to make 241.4 grams of Al(OH)3? 3Mg(OH)2 + 2AlCl3     =>…

A: Given that, 3Mg(OH)2 + 2AlCl3     =>   3MgCl2   +  2Al(OH)3 also given that,  241.4 grams of…

Q: How many grams of magnesium nitride is required to produce 25.00 g of magnesium hydroxide? Mg3N2 +…

A: Given  Mass of Mg( OH )2               = 25 gram  mass of magnesium Nitride  =  ?

Q: C5H12(l) + 8 O2 (g) --> 6 H2O (g) + 5 CO2 (g) How many moles of CO2 will be produced by 53.9…

A: Given the balanced chemical reaction: C5H12(l) + 8 O2 (g) →6 H2O (g) + 5 CO2 (g). The molar mass of…

Q: A hydrated salt is 21% water (anhydrous formula weight is 136.1). a. How many grams of water would…

A: Given: Hydrated salt is 21% water Anhydrous formula weight is 136.1

Q: The density of acetic anhydride is 1.08 g/mL.  Calculate the mass (in grams) of acetic anhydride…

A:

Q: Copper(I) iodide (CuI) is often added to table salt as a dietary source of iodine. How many moles of…

A: The mass of copper (I) iodide (CuI), mCuI, in 1.00 lb or 454 g of table salt is;…

Q: Question attached

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: 74. A throat lozenge contains 5.0 mg of menthol, which has the formula C10H20O. How many moles of…

A: Given : 74. 1. How many moles of menthol are in 5.0 mg of menthol? 2.What is the mass in grams of…

Q: How many formula units are in 0.761 g of iron(III) nitrate?   A. 1.89 x 1021 f.u.   B. 3.13 x…

A: Interpretation: The amount of formula units are in 0.761 g of iron(III) nitrate is to be calculated.

Q: N2H4(I) + 2H2O2 —> N2(g) + 4H2O(g) How many grams of N2H4 are required to produce 280 grams of N2?

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Q: Which one contains greater number of molecules?  25 g of H2O or 25 g H2S?  Explain your answer.

A:

Q: How many grams of AuCl3 contains 5.00 x 1023 atoms of gold(III) chloride (MW = 303 g/mol)? Group of…

A: Given that:     Number of atoms of gold (III) chloride = 5 × 10²³ atoms                Molar mass of…

Q: What is the percent of carbon in the pesticide DDT (C14H9Cl5) ? The molar mass of C14H9Cl5 is 354.5…

A: The given data: The chemical formula for DDT = C14H9Cl5 The molar mass of DDT = 354.5 g/mol To…

Q: Express your answers to three significant figures.    333 mg naproxen sodium =______C14H13O3Na…

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Q: What is the mass (in grams) of 0.0985 moles of nitric acid (HNO3)? Select one: a. 2.10 x 10-3 g b.…

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Q: calculate the mass in grams of each of the following samples. 251 moleof lithium 51 molesof…

A:

Q: 1. How many grams of C are present in 3.05 grams of carbon tetrabromide ? grams C. 2. How many grams…

A: 1 mole = 6.022×1023 [Avogadro's number] The mass of one mole of atoms of an element is known as…

Q: How many grams of ClCl are in a 38.0-g sample of the chlorofluorocarbon CF2Cl2? Express your answers…

A: Given: Mass of CF2Cl2 = 38.0 g.

Q: A. is asking 2.3E23 molecules of sugar would weigh how much in grams B is asking 2.3 moles of h20…

A: (a) Given data contains, Molecules of sugar is 2.3×1023 molecules.

Q: Show your work: a. How many moles is 55 g of NaCl? 0.025 g of NaHCO3? b. How many grams is0.5…

A: moles = mass/molar mass  Molarity  = volume of solute/ Volume  of solution  in litre

Q: Take Hg(l) + Br2(aq) 2Br^-(aq) + Hg2^+(aq) If 4.20 grams of Hg are consumed, how many grams of…

A: Calculation of mass of product formed using stoichiometry of a reaction:

Q: Find grams of solvent in a 5.6% mass of solutions of X that has 22.3g(X) g(soltn)= g(      )+g(…

A: given, the mass percentage of solution  of X = 5.6% weight of solute (X) = 22.3g X is the solute

Q: How many grams of Fe(CO3) are in 4.22 moles of Fe(CO3)? A. 0.036 grams Fe(CO3) B. 488.7 grams F e…

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Q: Calculate the number of moles of ethanol present in 243.3 mL of ethanol, CH3CH2OH, which has a…

A: The following relation can be used to calculate the moles of ethanol : 1- Density = mass/volume 2-…

Q: How many grams of NO2 are needed to make 1.5 g of N2? NO2 -->   O2 + N2

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Q: MnO2 + 4HCI -→ MnCl2 + 2H2O + Ch For items 7 to 9: 7. What is the mole ratio of MnO2 to H2O? 8. What…

A: Mol to mol ratio in a reaction is the coefficient present before the compound in the reaction. Check…

Q: 1. How many grams of B are present in 1.31 grams of boron trifluoride ? grams B. 2. How many grams…

A: The number of moles of an element is mathematically expressed as given below: where: n, m, and M…

Q: A 15.5 gram sample of diphosphorous pentoxide contains how many grams of phosphorous? a) 1.69 b)…

A:

Q: 1. How many grams of Mn2* are present in 1.53 grams of manganese(II) fluoride? |grams Mn²+. 2. How…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".