Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Q: How many moles are in 270. g of dinitrogen pentoxide [N2O5]?
A: Given Mass of N2O5      = 270 gram  Number of mole  = ?
Q: How many moles of Ag are in 73.2 grams of Ag₂O?
A: Given Mass of Ag₂O = 73.2 g Molar mass of Ag₂O = 231.7 g/mol
Q: How many oxygen atoms are thre in 6.00g of sodium dichromate, Na2Cr2O7? The molar mass of sodium…
A: Given,  Mass of sodium dichromate, Na2Cr2O7 = 6 g  Molar mass of sodium dichromate, Na2Cr2O7 =…
Q: (a) How many moles of ammonium ions are in 0.735 g of ammonium carbonate? 0.05130 X mol
A: a) Chemical formula of ammonium carbonate = (NH4)2CO3 Given, mass of ammonium carbonate, (NH4)2CO3 =…
Q: what is the mass in grams of 10 molecules of C3H5(NO3)3?
A: Mass = mole × molar mass
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Q: how many grams of oxygen are in 62.0 g of calcium phosphate, Ca3(PO4)2 ? Molar Mass of calcium…
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Q: How many moles of O are in 12.4 mol Fe(NO3)3?
A: ANSWER IS DISCUSSED BELOW :
Q: What is the mass in grams of 0.626 cmol(+) of magnesium (Mg2+), where cmol(+) is the moles of charge…
A: Concept:  Number of moles can be find by the given formula:  Moles = weight M.W.  Where  M.W. =…
Q: How many moles are in 321 g of Al2(SO4)3?
A:
Q: How many moles are in 303 g of Mg(OH)2?
A: Even a small sample of matter may contain millions of atoms, molecules or ions. In order to deal…
Q: How many moles of oxygen atoms are in 4.43 moles of Mn(SO4)3?
A: The compound given is Mn(SO4)3  Hence 1 molecule of Mn(SO4)3 has 1) 1 atom of Mn  2) 3 atoms of S 3)…
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Q: How many moles of Ag are in 43.6 grams of Ag2O ?
A: We know that,            The Molar mass of Ag2O = 231.735 (g/mol) .   Given,    43.6 grams of Ag2O .…
Q: The chemical formula for feldspar is K₂Al₂Si₆O₁₆. How many moles of feldspar are in 669.9 grams?
A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…
Q: For the compound Ca10(PO4)6(OH)2, what is the molar mass? How many atoms of P are in 35.00 grams of…
A: For molar mass of compound, we should know molar mass of its constituents.
Q: (d) For the reaction 2 NO + O2 → 2 NO2, how many moles of NO are needed to produce exactly 0.500…
A: moles of NO2 = 0.500 molesmoles of NO required =?
Q: What mass of compound is persent in 6.10 mol of Ca3(PO4)2, Na2HPO4
A: Given -> Number of moles = 6.10 mole  Molecular formula -> Ca3(PO4)2 , Na2HPO4
Q: What is the mass percentage of O in C₃H₈O₂? A) 21.03% B) 57.94% C) 72.58% D) 42.06%
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Q: How many grams of manganese(II) hydroxide contain 2.80 grams of Mn2+?
A: The formula for manganese hydroxide is Mn(OH)2  The molar mass of Mn = 54.93g/mol The molar mass of…
Q: What is the molar mass of Ga2(SO4)3?
A:
Q: How many moles of Fe(NO3)2 are present in 32.176 g Fe(NO3)2?
A: Molar mass of Fe(NO3)2 = 56 + (14+ 16x3) x 2 = 56 + 124 = 180 g/mol Given mass of Fe(NO3)2 = 32.176…
Q: If the decomposition of a sample of KClO3 produces 3.29 g of  O2, what was the mass (g) of the…
A: Write balanced equation
Q: What is the mass in grams of (4.28x10^0) mol of H2SO4?
A: Number of moles of substance is equal to the ratio of mass to molar mass of the substance. Number of…
Q: what is the molar mass of Ca3(PO4)2?
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Q: If you had 3.6 moles of Ca(OH)2, how many grams would you expect to have? And How many moles are in…
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Q: What is the mass % of H in C9H10N2?
A: Mass percentage is a kind of expressing the concentration of a solution. It gives an information…
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A: The mass of metal, Pellissippium (Pe) has a molar mass = 65.01 g/mol. The chemical formula of…
Q: N2 + O2 —> 2NO How many grams of N2 are required to produce 6 moles of NO?
A: In  order to calculate the mass of NO firstly we need to calculate molar mass of NO then we can…
Q: How many grams of phosphorous are there in 2.122 g of Fez(PO)2?
A: 1 molecule of Fe3(PO4)2 contains two phosphorous atoms. So, 1 mole of Fe3(PO4)2 contains two moles…
Q: What is the mass percentage of O in CH₃OH?  (the molar mass of CH3OH is 32.04 g/mol)
A: We have to calculate the mass percentage of oxygen (O) in CH3OH.Given that, the molar mass of CH3OH…
Q: How many moles of Ag are in 87.4 grams of Ag₂O?
A: molar masss of Ag2O = 231.7 g/mol Number of moles = 87.4 g / 231.7 g/mol = 0.372 Moles
Q: How many moles of oxygen atoms are there in (7.11x10^2) grams of P4O6 (MM = 219.88 g/mol)?
A: Given information: (7.11 x 102) grams of P4O6 (MM = 219.88 g/mol) The mole is calculated as…
Q: How many moles are in 8.00 g of SO3?
A: The number of moles of a substance from its given mass may be calculated as:
Q: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Given the molar mass of the compound is 893.49…
A: Given, mass of C₅₅H₇₂MgN₄O₅. = 1.501 g Molar mass of C₅₅H₇₂MgN₄O₅. = 893.49 g/mol  Number of moles =…
Q: for the reaction: 2HNO3 + Mg(OH)2 to form Mg(NO3)2 + 2H2O, how many grams of magnesium nitrate are…
A: The objective of this question is to determine the amount of magnesium nitrate produced from a given…
Q: moles
A:
Q: 3. What is the mass in grams of 0.0435 moles of alcohol (C,H;OH)?
A: Molar mass = 2 • ( molar atomic mass C ) + 6 • ( molar atomic mass of H ) + ( molar atomic mass of O…
Q: aspartame has molecular formula of C14H18N2Oc5(s). what is the molar mass? what is the amount of…
A: The molar mass of any molecule is the total sum of the molar masses of all the atoms present in that…
Q: If 2.112g of Fe2O3 reacts with 0.687 of Al, how much pure Fe will be produced? Fe2O3 (s) + 2 Al (s)…
A: The given reaction is shown below. The given weight of Fe2O3 is 2.112 g. The given weight of Al is…
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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 b…
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How many moles of (NH4)2S are there in 75 g of (NH4)2S?

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