AA Answer + 47. Calculate the percent by mass of the element listed first in the formulas for each of the following compounds. a. methane, CH4 b. sodium nitrate, NaNO3 c. carbon monoxide, CO

Q: Calculate the number of atoms in 15 grams carbon tetrachloride.

A: Since you have posted 2 completely unrelated questions, we are entitled to answer the first only.

Q: Violet has found a container of aluminum bromide that says it contains 3.67 moles of AlBr3. What is…

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Q: 6) How many total atoms are in one mole of ammonia (NH3) ? A) 6.0×1023 B) 1.2×1024 C) 1.8×1024 D)…

A: How many total atoms are in one mole of ammonia?

Q: O STOICHIOMETRY Interconverting number of atoms and mass of compound Calculate the number of oxygen…

A: Welcome to barlteby !

Q: Information for Parts B, C, and D A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a…

A: Given, Mass of sample of the compound = 100 g Percentage of of each element in the sample of…

Q: Determine the number of atoms and the mass of zirconium, silicon, and oxygen found in 0.3384 mol of…

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Q: How many iodine atoms are present in 4.10 moles of diatomic iodine? Give your answer in scientific…

A: Given: The number of moles of diatomic iodine=4.10 moles To calculate: The number of iodine atoms.…

Q: the given below. Wie 1. _H₂ + 0₂ 2. Zn _HCI 3. _Al _Fe(NO3)2 4. _NaNO3 _NaNO₂ NaOH + KNO3 >> 5. _H₂O…

A: The chemical equation is a symbolic representation of the Reaction takes place where one or more…

Q: here is 1.7 moles of the ionic compound FeCl3 How many moles of Cl- ions are there? a)1.024 x 10 to…

A: Ionic compound is that which is composed of anions and cations. A mole is the amount of substance…

Q: 1. Which of the following formulas-NO, N20, NO2, N2O4, and N2O5-represent the empirical and…

A: Empirical formula of compound represent whole number ratio of atoms and molecular formula represents…

Q: Silicon dioxide is the principle component in (window) glass. Approximately how many prc silicon…

A: We will calculate total number of proton

Q: 1. What is the mass of exactly one mole of HO3Br? Answer to the nearest 0.01 g.   2. What is the…

A: Given, Number of moles of HO3Br = 1 mole      Required,                             1. Mass of…

Q: Calculate the mass percent composition of carbon in each the following carbon compounds. C2H6…

A: Mass of carbon = 12.011 g/molMass of hydrogen = 1.008 g/mol

Q: Calculate the mass in grams of 5.5000x10^18 molecules of dinitrogen tetroxide. Please write your…

A: Given that: Molecules of Dinitrogen tetraoxide = 5.5000×1018 molecules Mass of Dinitrogen tetraoxide…

Q: Find the mass in grams of C3H8O (isopropyl alcohol) that would contain 5.44x10^25 C atoms.

A: The question is based on mole concept. We have to calculate mass of alcohol present in the given…

Q: How many moles are in 2.45 x 10^23 molecules of Na2S?Answer In scientific notation.

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Q: 2.0 of methane to molecules

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Q: How many total atoms are present in the following compound? (Please answer using whole numbers.)…

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Q: Hi, I am doing a practice test and need to check my answers. All of this is for Chem 101   Please…

A: Answer of given questions are as follows :

Q: MCQ 8: The molecular formula of different compounds shows actual numbers of A. atoms B. molecules C.…

A: Molecular formula describe the actual number and type of atom in a single molecule of a compound.

Q: A compound is composed of elements C, H, and N. A 7.875-mg sample of the unknown compound was…

A: Answer :             Empirical formula of compound is C5H7N. 1. Calculate the molar mass of each…

Q: What percentage of atoms in the molecule represented in the following formula are nonmetals?…

A: % of non-metal atoms = 100 x number of non-metal atoms/total number of atoms

Q: III. Calculate the percentage composition of each chemical compound. Circle your fina answer. Show…

A: Given that : We have to calculate the % composition of each chemical compound : 1. SnI4 2. Ca(OH)2

Q: It was given C lim = 4.10^_6 V min = 0.05 10:33 AM Question: find m 1 10:34 Formula is 10:34 AM m =…

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Q: Mass of magnesum before experiment is 0.33g  after is 0.49g   Calculate the ratio between the…

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Q: 5. Determine the number of moles of the compound and determine the number of moles of each type of…

A: Applying concept of mole calculation.

Q: how all work in your notebook, including dimensional c Combination/s 30z → 2 Fe2O3 a) How many moles…

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Q: ထာ 2 1 mole NO₂ I mole N;

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

A: The table is given below:

Q: What is the percent composition of aluminum sulfate, Al2(SO4)3? Please use the atomic masses on the…

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Q: Part B The molecular formula mass of this compound is 210 amu. What are the subscripts in the actual…

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Q: 10. Calculate the number of moles represented by each of these: a) 127.08 g Cu b) 20.0 g calcium c)…

A: e) Given : Mass of americium = 5.0 mg

Q: 2. Calculate the mass of each of the following: a. 20.0 mL of nitrogen gas b. 7.0 L of hydrogen gas…

A: One mole of any gas at STP occupies 22400 ml of volume. It is called molar volume.

Q: 1.20 moles of NaNa Express your answer with the appropriate units. Calculate the mass, in grams, for…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: LO. How many grams are in 5.60 x 1024 molecules of P Previous

A: In this question, we want to determine the mass of P4 in grams.  How we can determine, the mass of…

Q: Find the mass of 1 molecule of NH; in gram. a. 10 O b. 2.82 x1023 O c. 2.82 x10-23 O d. 17

A: According to the mole concept, one mole of any substance related as - (1) 1 mole of the Substance =…

Q: What is the percent composition of carbon in methane, CH? Round off your answer to the nearest tenth…

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Q: F In a 5.00 gram sample of Fe;O3, compute the following. Use the mass of the following element Fe…

A: Mole can be defined as the standard unit for measuring large quantities of very small entities such…

Q: How many nitrogen atoms are there in 1.00g of nitrous oxide (N2O sometimes called laughing gas?…

A: The given grams of nitrous oxide is first converted into moles then converted into atoms by using…

Q: the molecular formula of glycerol is C3H8O3- 1. calculate the formula mass of glycerol ____g/mol…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 2) A piece of magnesium metal was placed in a test tube containing hydrochloric acid. If I start…

A: Magnesium reacts with HCl to give MgCl2 and H2. The Balanced equation of the following reaction is…

Q: 13. What is the total number of atoms in each sample? b. 2.783 mol of methanol (CH3OH) d. 1.002 mol…

A: Hello, since your question has multiple parts, we will solve the first question for you. If you want…

Q: After 5.07 grams of iron are burned in oxygen, a 7.25 g sample of iron rust remained. What is the…

A: Solution The correct option is  E) Fe2O3

Q: Acetaldehyde has the molecular formula C2H4O. Given 55.0 g of Acetaldehyde answer the following…

A: Given : Mass of C2H4O = 55.0 g Molar mass of C2H4O = Atomic mass of C X 2 + Atomic mass of H X 4 +…

Q: How many moles of aluminum do 5.80×1024 aluminum atoms represent? Express your answer using three…

A: Number of Aluminum atom = 5.80 × 1024

Q: you

A: Careful mass measurement in chemistry lab is very necessary. In lab we use analytical balance or…

Q: There are ______ atoms of carbon in 12.77 g manganese (III) oxalate. _______ grams of zinc arsenite…

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Q: 2.30 moles of CaCa Express your answer with the appropriate units. Calculate the mass, in grams, for…

A: The relationship between mass of element and moles of element is given by  Mass of element = moles…

Q: A sample of Mg(NO3)2 has a mass of 71.5 grams. how many molecules are in this sample please report…

A: From given data  mass of sample = 71.5 g    Also, molar mass of sample is fixed,  molar mass of…

Q: In chemistry class, if a student used 2.0 grams of baking soda (NaHCO3) to absorb an acid spill, how…

A: Mole is used to determine the amount of substance. One mole of a substance contains 6.022×1023…

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.