4. What is the mass of 3.66 moles of N2 ?

Q: How many moles of SO2 are present in 42.7 grams SO2? Show work on your paper using dimensional…

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Q: An alloy contains 78.7% zinc by mass. If a sample has a total mass of 230 grams, how many grams of…

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Q: Determine the formula weight of NH₄F. Provide an answer to two decimal places.

A: Formula weight can be calculated from the given molecular formula just by adding the atomic mass of…

Q: Solve AHºp for each (i) 2H₂S(g)+30₂(g) —> 2SO₂(g)+2H₂O(g) -> (ii) SiO₂ (s)+4HF(g) -> SiF4(g)+2H₂O(l)

A: Solve ∆H° for each--

Q: Part A Copper(II) fluoride contains 37.42% F by mass. Use this percentage to calculate the mass of…

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Q: Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work.

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Q: For a sample consisting of 258.49 × 1023 molecules of methane, CH4, calculate

A: Given: no of molecules = 258.49 x 1023 moleculesWe know that,1 mol contain =NA= 6.023 x 1023…

Q: If PuO2 is 11.6 mass% oxygen, how many grams of oxygen are in 100g of PuO2? (Remember there are 3…

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Q: Calculate the number of moles in 4.9 x 103 grams of vitamin C (C6H8O6).

A:

Q: Use the References to access important values if needed for this question. Calculate the number of…

A: Volume of Ethane gas = 474 cm3 Temperature = 0 ◦C Or 273.15 K Pressure = 1 atm Density = 1.34 × 10-3…

Q: Convert 6 moles of Na to mg. Show work

A: Mole is the ratio of given weight by molar mass. n=Given weightMolar mass

Q: any moles o

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Q: Calculate the ratio of moles of H2O to moles of anhydrous KAl(SO4)2. Show all work including units.…

A: The moles of H2O is = 0.5 mol The moles of anhydrous KAl(SO4)2 is = 0.00775 mol The ratio of moles…

Q: Show all your work and include appropriate units. Q1. Calculate moles of NaC2H3O2 (s), then use…

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Q: How many moles of neon are contained in the following volumes at Standard Temperature and Pressure…

A: One mole of ideal gas will occupy volume of 22.4 liters at STP   a)  44.00 L so number of moles of…

Q: 82% Not Secure -openvellum.ecollege.com Course.. Pearson M... Favorites Pearson M... Academic...…

A: First, one mole of any substance contains 6.02 x l023 molecules.The number of atoms or molecule of…

Q: Part A Given the reaction of hydrogen and chlorine gases, calculate the moles of hydrogen that react…

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Q: Determine the number of molecules in 44.5 grams of SO₂. Round to right amount of sig figs.

A: Number of moles = Mass/molar mass Number of molecules = 6.0224 x 1023 x number of moles

Q: Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work

A: Molar mass of CaCl2 = (40+2x35.5) g/mol                                   = 111 g/mol Molar mass…

Q: sample weight is potassium ferrioxalate find the Theoretical Mass % of Fe3+Equivalence

A: We have to find the Theoretical Mass % of Fe3+

Q: How many corner atoms are shown in this image? number of corner atoms: What fraction of each corner…

A: In any cubic unit cell Corner-8 Face -6  Center-1 Edge -12

Q: How many total atoms are present in a mixture sample containing five molecules of each component.…

A: S8 contains 8 atoms of sulfur  C2H6 contains 2 Carbon atoms and 6 hydrogen atoms ( total 8 atoms)…

Q: Molecular mass and mole concept.

A: Molecular mass: The average relative mass of the molecules of a substance compared to the atom of…

Q: Calculate the number of moles in and the mass of an 6.24 L sample ammonia, NH3, measured at standard…

A: Here, we have to calculate the number of moles in and the mass of a 6.24 L sample ammonia, NH3,…

Q: How many moles Ca(Mnoa)2 are present in 360.000.000.000.000,000.000,000 formula units of Ca(Mnoa)2?…

A:

Q: Calculate the molar mass of C6H12O6. Show your work.

A: Molar mass = Sum of Atomic masses of all the atoms present in the molecule  Since in each molecule…

Q: Hilfur oxide is 50.0% by mass sulfur. This empirical formula could be For the toolbar, press ALT+F10…

A: Given:  Weight % of sulphur in sulphur dioxide = 50 %  Empirical formula is the chemical formula…

Q: What is the percent by mass of sulfur in SO1? Your Answer:

A: Introduction : We have to calculate the percent by mass of SO1.

Q: Calculate the molecular mass of iron (III) oxide (203). Show your work.

A: Molecular mass is total sum of all the constituent elements of the molecule. For Fe2O3, molecular…

Q: Match the left column correctly with the right column.         Hg2CL2 molecular element Silicon…

A: The table is given below:

Q: Write the correct answer with 1 place after the decimal point.   What is the molecular mass of…

A: Given, molecular mass of  S2N5O5 = ? Note:  Atomic mass of S = 32.06 g/mol Atomic mass of N = 14.01…

Q: NAOH +HC → Nacl+H20 10m2 50ML 00-IM O-05M DIce chart needed y In the answer in class, there 1S a…

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Q: Find the mass of 1 molecule of HF  in gram.

A: 1 mole = 6.022×1023 [ Avogadro number ] The mass of 1 mole of molecules of a substance is called its…

Q: MOLE-S.I. unit for amount of substance 1 mole is equal to: a. Mass/Grams (perodic table) b. 6.02…

A: (No. of moles)   n=Given wt.Molar wt.=Given atomsNA=Given volume22.4L

Q: Am I right? Sample 1 2 3 Calculations for sample 1 Mass of aluminum dish   1.24g 1.26g…

A: Percentage of water  = mass of watermass of anhydrate  x 100

Q: On your own paper.....Perform the following calculations showing all work. Be sure to include the…

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Q: What is the range of values that would be within a power of 10 of Avogadro's Number?

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Q: Challenging question: ask for help if you get stuck. The density of methanol (CH4O) is 792 kg/m3.…

A: Given: Volume of CH4O = 2.0 nL = 2.0 × 10-9 L                                     (Since 1 L = 109…

Q: 2. Using your data from Part II of the experiment, determine the percent water in the original…

A:

Q: 52.96 % 0679 Submit Previous Answers Correct Part D Calculate the percent C20 in K3[Al(C2O4)3]-3H20…

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Q: Determine the formula weight of Al¿(SO4) 3. Provide an answer to two decimal places.

A: • Aluminium sulfate, Al2(SO4)3 consists of two aluminium atoms, 3 sulfur atoms and 12 oxygen atoms.…

Q: Use the following information to determine how many moles were produced? Round to two decimal…

A: The pressure of the gas is = 742.1 mmHg The volume of the gas is = 9.65 L The temperature of the gas…

Q: How would you find the log of the mass of stearic acid in units of Da?

A: The mass of stearic acid is 284.5 g/mol. Da is the atomic mass unit that is used to measure the mass…

Q: How many grams of N2O4 are present in 0.91 mol N2O4? Show your work using dimensional analysis and…

A: Mass of N2O4 is calculated with the help of formula - No. Of moles = Given mass /Molar mass

Q: Calculate the formula mass of each:  (to TWO decimal places with the UNIT amu) A. SnF2  B. AlOH3

A: Solution :    Formula mass of a substance is calculated by the sum of atomic masses of all the ions…

Q: Use the density table to calculate the volume of exactly one mole of water in mL at 35 °C. Use the…

A: Using Density table ,  Density of water at 35°C=0.994 g/ml

Q: Part A What mass of phosphorous pentafluoride has the same number of fluorine atoms as 27 grams of…

A: Given, mass of oxygen difluoride (OF2) = 27 g mass of phosphorus pentafluoride (PF5) = ? Note:…

Q: Use the information given to you  below to solve/calcualte the rest of the table. Please show all…

A: Given : Formula of Hydrate: CuSO4*5H2O Weight of Hydrate and Evaporating Dish = 63.961 g Weight of…

Q: How many grams of H2SO4 are present in 1.9*104º formula units of H2SO4 ? Round your answer to 1…

A: Given data: The formula unit of H2SO4=1.9×1026. To find: The grams of H2SO4 present.

Q: Why it's impossible to get a hundred percent yield from the original sample?

A: Here we are asked reason responsible for not getting hundred percent yield from the original sample.