What number of atoms of nitrogen are present in 8.73 g of each of the following? a. glycine: C2 H; O2N atoms N b. magnesium nitride atoms N c. calcium nitrate atoms N d. dinitrogen tetroxide atoms N

Q: ) A 15.5g sample of Aluminum would be equal to how many moles? ) How many atoms are in 3.5 moles of…

A: Since you posted multiple parts so I have tried to solve maximum.

Q: Determine thev molar masses of these compounds  d)C2H5OH e) HC2H3O2 F) Fe3O4

A: Note : As per our guidelines we are supposed to answer first 3 parts. Please repost other parts as…

Q: • How many moles of Na Cl contain 3.49 x1025 There are ions? Z moles of ions per mele oE Nasl, cund…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Anything which is in the number of 6.022×1023 is said to…

Q: Which one of the following statements about oxalic acid is TRUE? Select one: O a. One mole of oxalic…

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Q: element b forms a chloride BCl3 containing 46.62% chlorine by mass. what is the identity of this…

A: Consider the molecular mass of the compound BCl3 which is formed by the combination of an unknown…

Q: In the formula for sodium phosphate (Na3PO4), how many moles of sodium are represented? How many…

A: In the formula for sodium phosphate (Na3PO4)   3 moles of sodium are represented 1 mole of…

Q: What is the mass of 2 moles of NH3? (Hint: 1 molecule of NH3 has a mass of 17 amu) * O 17 amu O 17 g…

A:

Q: 3. Complete and fully balance each equation. HNO3(ag)t NaOH(ag) → H2O(I) a. b. Zn(s)t CusO4(ag) →…

A: 3) Answer : a) HNO3(aq) + NaOH(aq)                                → NaNO3(aq) + H2O(l)    b) Zn(s) +…

Q: 3.121 Avogadro’s number has sometimes been described as aconversion factor between amu and grams.…

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Q: Formula Calculations with atomic masses Formula mass 119.00amu 75amul 146.00am K= 39 + Br=80 KBr…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: he compound cisplatin is a chemotherapy drug. The chemical formula of cisplatin is PtCl2(NH3)2. How…

A: In international system of units, seven basic units are present which help us to find the physical…

Q: (Calculate the number of grams in one mole of CaS04.7H20, (Ca = 40, S=32, 0=16, H=1 .A g/mol 136 .B…

A:

Q: 23. How many oxygen atoms are in 1.50 mol of SO3? a. 7.71 x 1021 atoms b. 1.12 x 1022 atoms c. 3.01…

A: 1- First we will determine the moles of oxygen in SO3 : 1mol of SO3 have = 3mol of oxygen atom…

Q: a. calcium oxide b. potassium chloride c. mercury(I) oxide d. zinc fluoride e. barium hydroxide f.…

A: Note: As per our guidelines, we are supposed to answer only the first question (i.e. exercise 1).…

Q: Which one of the following statements about the compound C3H4 is CORRECT? Oa. Five molecules of C3H4…

A:

Q: Moles Molecules/atoms Substance Molar Mass Mass Table sugar C12H22011 C. 34334 28.72 Nails Fe 55.85…

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Q: How many formula units of zinc selenide are there in 2.9x10^-3 moles of zinc selenide? Round to…

A: The formula unit is used to express the smallest ratio that exists between the cations and anions in…

Q: Determine thev molar masses of these compounds  a) KBr b) Na2SO4 c) Pb(NO3)2

A: Note: As per our guidelines, we are supposed to answer only the first three subparts. Please repost…

Q: DIRECTIONS: Write Tif the statement is correct, and F if the statement is incorrect. 5. The…

A: The true and false statement has to be given,

Q: ted, how many O A. 623.7 g O B. 415.8 g OC. 2495 g O D. 138.6 g O E. 104.0 g

A: The question is based on Reaction Stoichiometry. We have to calculate Amount of potassium…

Q: One mole of oxygen molecule (02) contains how many atoms of oxygen? a. 6.022 × 1023 O b. 1,6021 ×…

A: We have to tell the no. Of oxygen atom in 1 mole

Q: 1. How many ATOMS of carbon, are present in 4.07 moles of carbon tetrabromide, CBR4? atoms of carbon

A: 1 mole of any substance contains Avogadro number of entities   i.e   1mole  = Avogadro number (NA)…

Q: 16 How many moles of oxygen atoms are in 7.58 moles of V(SO4)3?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: b. a compound that is 63.5 % Ag, 8.2 % N, and 28.3 % O %3D 5. Aspartame is an artificial sweetener…

A: Determination of empirical formula from percent composition Calculate the number of moles of each…

Q: A compound of hydrogen and carbon is 92.3% carbon, If 40 g of hydrogen is reacted with 135 g of…

A: Molecular mass is the sum of the masses of all the atoms in a given molecule. Percentage composition…

Q: What is the molecular formula of a compound if the empirical formula is C,H, and the approximate…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: When aluminum metal is heated with an unknown element from group 6A (O, S, Se, Te) an ionic compound…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: m ni un f. a 65.2 g sample of à compoulnu 11. A substance whose formula is A20 (A is a mystery…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: 9. Using the following reaction 2NaBr +CaF, →2NAF+ CaBr2 If 6 moles of CaF2 were added, what mass of…

A: Given  moles of CaF2 = 6 moles Molar mass of  CaBr2 = 199.9 gm/mole Mass of CaBr2= ?

Q: A brass alloy contains 78.6% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

A:

Q: A.)If 4.76  mL of seawater contains about 5.46×10-14  moles of gold, how many atoms of gold are in…

A: Given, A.)If 4.76  mL of seawater contains about 5.46×10-14  moles of gold, number atoms of gold are…

Q: w many moles of calcium atoms do you 1021

A: Given, No. of atoms = 6.22×1021 atms To calculate the number of moles of calcium.

Q: 10. What does Avogadro's number represent? a. the number of atoms in 1 mol of an element b. the…

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Q: Glycine is an amino acid with the formula C2H5NO2. Determine the number of moles of carbon in 81.39…

A: By using the mole concept we can calculate the number of moles carbon in C2H5NO2

Q: 1.50 g Lithium Carbonate to atoms O 9.09 x 10*23 atoms O 7.12 x 10°23 atoms 8.06 x 10*23 atoms O…

A: Lithium carbonate is a chemical salt, a lithium carbonate salt with the Li2CO3 formula. This white…

Q: Part 3 28.4 mL of 0.403 M (NH4)2CO3 mol NH4*: O 11.4 0.0228 O 11400 O 0.0114

A:

Q: Which of the following contains the largest number of molecules: 6.00 g CH, 9.00 g H,0, 11.0 g C,H,…

A: To determine largest number of molecules first calculate the number of moles.

Q: The compound benzene contains 92.26% C, the remain is hydrogen and has molar mass of 78 g/mol. what…

A: Given    C = 92.26 %    H   = (100 - 92.26) %         = 7.74 %  Molar mass of Compound = 78…

Q: What is the mass of exactly 1 mole of each of the compounds? N,O: Fe(CIO),: Fe(CIO, )3:

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Q: 1. How many ATOMS of sulfur, dichloride, SCI2? are present in 4.82 moles of sulfur atoms of sulfur

A: Given: Moles of SCl2=4.82 moles

Q: 13. The molar mass of an element is numerically equivalent to what? a. 1 amu c. 1 mole d. its atomic…

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Q: A sample of methane (CH4) has a mass of 71.6g.  How many moles does that equal to?

A: Mass of Carbon =12g Mass of Hydrogen = 1g Molecular mass of methane = 16g 16g of methane  = 1 molr…

Q: 3.2*10^24 atoms O to molecules O3

A: A molecule is composed of two or more than two atoms. The number of molecule can be determined by…

Q: 3. The average atomic mass of an atom is expressed in c. g/mol a. grams b. amu d. moles 4. Which…

A: Choose the correct option of the following --

Q: Naturally occurring chlorine that is put in pools is 75.53 percent 35Cl (mass = 34.969 amu) and…

A: Given : There are total 2 naturally occurring isotopes of chlorine Mass of isotope 1 i.e 35Cl =…

Q: Which one of the following statements about the compound C3H4 is CORRECT? Oa. One mole of C3H4…

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Q: R Compound X has a molar mass of 102.17 g mol -1 and the following composition: element mass %…

A:

Q: How many oxygen atoms are in 29 molecules of sucrose, CH O ? 12 22 11

A:

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.