What is the percent composition by mass (to one decimal place) of Oxygen and hydrogen in 1 mol of water?

Q: how many moles of propylene are in 2.5 g of the substance?

A: Given:given mass of propylene =2.5gwe know thatThe Molecular Formula of Propylene = C3H6 So,…

Q: ind the percentage composition: a. Sodium Carbonate tetra hydrate Na2CO3 .4H2O b. Zinc Phosphate

A:

Q: Heart disease is linked to high blood cholesterollevels. What is the percent composition of…

A: Percentage composition of each element defines the amount of that particular element present with…

Q: Tin (Sn) exists in Earths crust as SnO2. Calculate the percent composition by mass of O and Sn in…

A: To find the percent composition by mass of O and Sn in SnO2, first we need to find how much amount O…

Q: Calculate the percent composition by mass of cach element in AIKOH),. Use at least three significant…

A: Following are the atomic masses of the atoms in Al(OH)3: atomic mass:Al = 27 g/molO = 16 g/molH = 1…

Q: 2 Mg(s) + 3 N2 (g) --> 2 MgN3 (s) How many moles of N2 will be used to produce 115 grams of MgN3?

A: The given reaction is,             2 Mg(s) + 3 N2 (g) --> 2 MgN3 (s) We have, mass of MgN3 = 115…

Q: the mass of 0.014 moles of sodium sulfate, in grams?

A: The relation between number of moles(n), molar mass(M) and mass (m) of a substance can be given by…

Q: number should be placed in front of CaSO4 to give the same total number of sulfate

A: The number should be placed in front of CaSO4 to give the same total number of sulfate ions on each…

Q: What is the mass in grams for 0.198 mole mercury(III) bromide?  Two decimals 0.749 mol calcium…

A: Solution of these questions depends on mole concept. One mole of any compound contains avogadro…

Q: The percent by mass of manganese(II) in MnSO3 is %.

A:

Q: Glycine, an amino acid used by organisms to make proteins,is represented by the following molecular…

A: Glycine is the simplest amino acid present. It is made up of an amine group and one carboxylic group…

Q: Write all possible mole ratios between each element in the compound C4H10O2.

A: In one mole of the compound C4H10O2, there are 4 moles of C, 10 moles of H and 2 moles of O.

Q: 3. How many moles are represented by 3.01 · 10²24 oxygen atoms? 2 moles 5 moles 250 moles 10 moles

A: One mole has 6.022 x 1023 Therefore 10.0moles will have 10x 6.022 x 1023 =6.022 x 1024 6.022 x 1023…

Q: Be sure to answer all parts. Tin (Sn) exists in Earth's crust as SnO2. Calculate the percent…

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Q: Convert 6 mol O2 to atoms oxygen

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Q: 11. What is the percent composition of sulfur in ammonium sulfate? (NH,),SO,? a. 6.7% b. 24% C. 28%…

A:

Q: How many moles of tetracycline (C₂₂H₂₄N₂O₈) are in 92.1 grams?

A: Before going to find out moles of tetracycline, We first find out molecular weight of C22H24N2O8 ,…

Q: hat is the percent composition by mass of copper in 80.0kg of copper (ii) phosphate

A: To calculate the percent composition by mass of copper in 80.0kg of copper (ii) phosphate.

Q: What is the molar mass of C7H1004? Express your answer in units of grams per mole. Provide your…

A: Given  Formula of compound = C7H10O4 Molar mass = ?

Q: H Identify the element that has the highest mass percent composition in C,H120. Он Oc Identify the…

A: Applying concept of%mass of elements.

Q: The formula for molybdenum(IV) hydroxide is Mo(OH)4. What is the percent by mass of oxygen in…

A: percent by mass of O = (mass of O/mass of Mo(OH)4 ) × 100%

Q: Consider the following compound: Sr3(PO4)2 *4H2O   -Calculate the theoretical percent strontium by…

A: The mass percent of strontium in Sr3(PO4)2 * 4H2O is calculated as,

Q: 1. What is the percent by mass (percent composition) of each element within the compound magnesium…

A: Hi, Since you have posted multiple questions, we will solve first question only. If you want, all…

Q: How many moles of ions are created from moles of CaCl2

A: when CaCl2 dissociate it gives one Ca+2 and 2Cl- ions. So that One mole of calcium chloride gives…

Q: Is the subscript of an element the same as its number of moles? Does the subscript mean how much…

A:

Q: at is the percent composition of chloroform, CHC1, a substance e used as an anesthetic? (C:…

A: Given molecular formula of chloroform CHCl3. To find out the % composition of C, H , Cl. Atomic mass…

Q: In the compound (NH4)S2, what is the percent composition of hydrogen

A:

Q: Calculate the percent composition by mass of each element in xenon tetraflouride and in…

A: Formula of xenon tetra flouride= XeF4   % composition of Xe=(1/5)*100…

Q: What is the percent composition by weight of hydrogen in the following compound? C;H,O2 Enter your…

A: Percentage composition of any atom in a molecule can be taken out with the help of mass of atom and…

Q: One mole of hydrogen peroxide, H2O2, would consist of how many molecules?

A: Given : Moles of H2O2 = 1 mol

Q: Consider 1.00 g of Copper (Cu) metal. How many Cu moles are present in this sample? How many Cu…

A: Since moles of element = mass of element / Atomic mass of element  Atomic mass of Cu = 63.5 g/mol…

Q: How many moles are in 4.5x1024 particles? 0.747 particles 0.747 mol 2.71x1047 mol 2.71x1047…

A:

Q: Calculate number of moles of a substance having 341gram mass and molar mass 568 gram/ mole

A:

Q: 1. How many MOLECULES of phosphorus pentachloride are present in 1.34 moles of this compound ?…

A: The given information is: Chemical formula of phosphorus pentachloride = PCl5. 1. Moles of PCl5 =…

Q: How many NH3 molecules comprise one mole of NH3? What is the mass in grams of one mole of NH3? What…

A: In one moles of NH3 is equal to Avagadro number of Molecules of NH3  That means,  1mol of NH3 =…

Q: Calculate the number of sodium atoms in each following samples: A. 1 mol sodium oxide B. 50g…

A: Given, three samples containing sodium as following,A) 1 mol sodium oxide  B) 50g sodium chlorideC)…

Q: Calculate the percentage composition for PNCI2 - (Enter your answer to four significant figures.)…

A: Solution: The percentage composition for PNCl2 are as follows --- The molar mass of phosphorus (P) =…

Q: is the mass of each component? s of CH,O : g CH,O s of water: g H,O

A:

Q: the number of moles of chlorine in 12.5 g of carbon tetrachloride?

A: Number of moles of chlorine in 12.5g of CCl4. Here first we find moles of CCl4 in 12.5g that is 0.08…

Q: given the molar mass of Na2SO4.nH20 is 322.1 g/mol, calculate the value of n

A:

Q: How many atoms are in 156 mL of ethanol? (Density = 0.79g/mL) (Molar mass: 46.07g/mol)

A: Number of atoms present in 156 mL of ethanol is to be determined. (Density = 0.79g/mL) (Molar mass:…

Q: An organic compound has a molar mass of 171.1 g/mol and contains 11.10 % hydrogen atoms by mass. How…

A:

Q: How many grams of ethanol , CH3CH2OH , are in 0.60 moles of ethanol?

A: Condensed formula for CH3CH2OH is C2H6O Molar mass of ethanol (C2H6O) = Atomic mass of C x 2 + H x 6…

Q: What is the percent composition by mass (to one decimal place) of copper in 80.0 kg of copper (2)…

A: Molar mass of Copper(II) pho sphate = 380.58 g/mol This implies; 380.58 g of Cu3(PO4)2 contains…

Q: Calculate the percent by mass of hydrogen in Chloric acid, HClO3.

A:

Q: Anabolic steroids are performance enhancement drugs whose use has been banned from most major…

A: Calculate the molar mass of fluoxymesterone (C20H29FO3),      20(12.01) + 29(1.01) + 1 (19.00) + 3…

Q: How many moles of pentane, C5H12, are contained in a 27-g sample?

A: ⊙No. of moles = massmolar mass⊙Molar mass of pentane(C5H12)=5×atomic mass    of carbon +12×atomic…

Q: percent composition

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Q: how many atoms are present in 1.694g of cobalt(II) hypochlorite?

A: Given : Mass of cobalt (II) hypochlorite i.e Co(ClO)2 = 1.694 g Each molecule of Co(ClO)2 contains,…

Q: A 27.1 gram sample of AlCl3 is equal to how many moles of AlCl3

A: Number of moles = Mas present in gMolar mass

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.