What is the mass of 8.00 molesmoles of magnesium chloride, MgCl2MgCl2? Express your answer with the appropriate units.   B. How many moles of nitrogen, NN, are in 78.0 gg of nitrous oxide, N2ON2O? Express your answer with the appropriate units.

Q: Calculate, to the correct number of significant figures, how many molecules of Sg are contained in…

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Q: Mn (s) + 2 CuCl (aq) --> 2 Cu (s) + MNCI2 How many grams of Cu will be produced by 4.4 moles of Mn?…

A: Given reaction,        Mn(s) + 2 CuCl(aq)  →  2 Cu(s) + MnCl24.4 moles of Mn

Q: How many moles of propylene (C3H) are in 25.0 of the substance? g

A: Moles = mass/molar mass

Q: 0.279 g of the hydrate CoCl2•nH2O is heated to produce 0.197 g of anhydrous CoCl2 (MM = 129.83…

A: Given: Mass of hydrate = 0.279 g Mass of anhydrous CoCl2 = 0.197 g Molar mass of CoCl2 = 129.83…

Q: Directions: Determine the mole ratio of the following reactants and products. For items 1 and 2:…

A: Mole ratio is the ratio of coefficients which is present in the reaction. Check the coefficient in…

Q: 3. Calculate the moles of each product you obtained (use the masses you obtained):

A: For the given reaction, Products formed are KNO3 and PbCrO4

Q: Balance the following equation Only use numerical values, use the number 1 or 0 if you want the…

A: The given Chemical equation can be balanced as follows -

Q: STARTING AMOUNT X Determine the quantity of molecules in 0.150 moles of H₂O. ADD FACTOR x( ) 9.03 x…

A: Avogadro's number = 1 mol =  atoms, ions molecules or particles ----------------------------

Q: You will see similar questions like: A mineral sample is obtained from a region of the country that…

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Q: 1.20x10^25 atoms phosphorous 1 6.02x10^23 atoms =19.93 moles phosphorous

A: Yes , the above numerical answer calculated make sense when compared to the mole equivalent because…

Q: The amino acid arginine has an approximate molar mass of 174 g/mole. If the percent composition is…

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Q: An element X has a tribromide with the empirical formula XBr3 and a trichloride with the empirical…

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Q: A student in lab needs to make a solution that is 5.005.00% by mass NaCl. If 125 g125 g of NaCl is…

A: NaCl is ionic compund having Na+ and Cl- ions, they are also known as salts.

Q: Convert 7.61 mol NaCl to moles of CaCl2, using the equation given below.  Round to the nearest 0.01,…

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Q: A compound contains 0.01492 moles of V and 0.03416 moles of Cl.  Calculate the ratio of moles of Cl…

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Q: What mass of carbon dioxide is produced from the complete combustion of 2.20x10-3 g of methane?…

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Q: How many moles of NaOH are in 8.2x10^27 formula units of NaOH? Round your answer to the 1 decimal…

A: To calculate the number of moles of NaOH are in 8.2x10^27 formula units of NaOH.

Q: Convert 0.2377 grams of carbon into moles. 0.01718 molescarbon 0.01181 molescarbon 0.008229…

A: The mass of carbon given = 0.2377 g Molar mass of carbon = 12.0107 g/mol

Q: For question numbers 9-12, refer to the situation below. The metal zinc readily reacts with…

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Q: 452 ggon 1 mole 39.948 argon -11.31 moles argon

A: Unit conversion can be done by doing mathematical calculations with the unit conversion factor.

Q: In the decomposition reaction,50.10 g of calcium chlorate was heated to produce calcium chloride and…

A: Calcium Chlorate is Ca(ClO3)2 Reaction: Ca(ClO3)2  --> CaCl2 (s)  + 3O2(g)

Q: Liquid octane (CH₂(CH₂) CH₂) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide…

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Q: Organic chemistry:What does a percentage yield of 55.16 and percentage recovery of 181.30g mean .I…

A: Percentage yields and percentage recovery are two different things that are used to indicate the…

Q: Given the equation 2 NH3 -> N2 + 3 H2, convert 7.46 mol N2 to moles of H2. Round to the nearest…

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Q: STARTING AMOUNT X Determine the quantity of moles of propylene (C3H6) in 25.0 ADD FACTOR x( ) 25.0…

A: Given mass of C3H6 = 25.0 g Molar mass of C3H6 = 42.09 g/molAs we know ,No. Of moles =

Q: Be sure to answer all parts. How many moles and numbers of ions of each type are present in the…

A: Answer: 1 mole formula unit of any compound has 6.022×1023 molecules which is the value of Avogadro…

Q: Molar mass==Mass of 1 mol of substanceMass of 6.022×1023 particles of substanceMolar mass=Mass of 1…

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Q: The molar heat capacity of the substance

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Q: The unknown compound is 28.6% C rbon does a 100.0 gram sample of

A: GIVEN   TOTAL MASS = 100 gr UNKNOWN COMPOUND  CONTAINS 28.6% BY MASs 28.6 gr of carb

Q: STEP 1. Calculate the %O in Cr2(CO3)3 to 4 significant figures. %O =  STEP 2. How many moles of…

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Q: Indicate the mole ratio between each of the reactants. USE: 2 H, + 1 0, → 2 H,0 moles H, moles O2…

A: In a chemical reaction, two or more reactants react with each other to form new substances. This new…

Q: Step 1a: When percentages are given, assume that the total mass is 100 grams to determine the mass…

A: Given : % N in sample of unknown compound = 66.6%   To find : Moles of N in sample of unknown…

Q: What mass of a 6.0% NaOH solution contains 12 grams of NAOH? Enter your answer in grams in the space…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: The unicycle tire contains 5.33x1023 molecules of nitrogen (N2) gas. If all of the gas was released…

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Q: How many moles are there in 7.14 × 10³⁵ molecules of O2 Use the format for solution • Given •…

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Q: percent composition

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Q: Convert 1.5 x 1023 molecules SO2 to moles.

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Q: please Answer this question in the same format thats in the picture below on paper, answer…

A: Number of moles = Mass/Molar mass

Q: If a sample of BaBrz is found to contain 2.34 · 103 mol of Ba2+ ions how many moles of Br" ions are…

A: 1 mole of BaBr2 after 100% dissociation produces 1 mol Ba2+ ions and 2 mol Br- ions…

Q: c) List An ore with the mass of 1.52 g is analyzed for the manganese content (%Mn) by converting the…

A: The mass of the ore sample is = 1.52 g The mass of the Mn3O4 precipitate is = 0.126 g The percentage…

Q: Use the References to access important values If needed for this question. For the molecular…

A: In this question we have to convert mole into molecule by some multiply.

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: Unit 4: Chemical Reactions Quiz #2 (6 points) This quiz will assess your mastery of mole ratios and…

A: The mole ratio may be determined by examining the coefficients in front of formulas in a balanced…

Q: For mole calculations, a molar mass conversion factor is needed to convert grams into moles (and…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Consider the following chemical reaction HCl (aq)  + HgNO3 (aq) à Hg2Cl2 (s) + HNO3 (aq) If 20.0…

A: Given: Mass of HCl=20.0 g Mass of HgNO3=30.0 g Percentage yield=78.4% To find: Reagent in excess…

Q: The following reaction can be used to convert carbon dioxide to oxygen gas. 4 KO₂ (s) + 2 CO₂(g) → 2…

A: Mass of KO2 = 0.860 g Mass of O2 produced = ?

Q: QUESTION 23/ Suppose you are preparing for a reaction, and you weigh 2.037 g of LiOH on a…

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".