Complete the following calculations. Mass calculations Mass of watch glass and evaporating dish: Mass of watch glass, evaporating dish, and Mg ribbon: Calculate the mass of Mg (g) Mass of watch glass, evaporating dish, and reacted Mg after cooling: #S Calculate the mass of the product (g) 62.254 g 62.534 g 63.375 g

Q: A mixture contains both potassium phosphate and potassium chloride. What is the percentage of…

A: The moles of  Cu3(PO4)2 in 0.5565 g is, number of moles=given massmolar mass…

Q: * Question Completion Status: Barium oxide was synthesized form the reaction of barium and oxygen in…

A:

Q: P.S. 6. A miner was digging up some ore (rock). The ore contains 84% lead(II) sulfide by mass. How…

A:

Q: 2. A mixture of Na2SO4 and its hydrate Na,SO4-10H2O has a mass of 1.5099 g. After heating to drive…

A: Mass percent :- The mass of a component present in 100 grams of a mixture is known as mass…

Q: The mass of an organic compound was found to be 58.053 86 by mass spectrometry. Is the sample C₂HN₂,…

A: The solution is given below -

Q: The “lead” in lead pencils is actually almost pure carbon and the mass of a period mark made by a…

A: Answer = 5.02 x 10 19

Q: Given Mass of unknown sulfate = 0.4213 g Mass of empty crucible and cover = 17.6519 g Mass of…

A: The given reaction is represented as follows: BaCl2+H2SO4 → BaSO4+2HCl

Q: Dibenzalacetone, C17H14O (molar mass = 234.29 g mol−−1) is a common ingredient in sunscreens that is…

A: The objective of this question is to calculate the mass of Dibenzalacetone (C17H14O) that was…

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given that, 4.0 g of a compound X is made of carbon, hydrogen and perhaps oxygen. The molecular…

Q: e empirical formula of ti

A:

Q: which of the following are true for 1 mole of water at room temperature (approximately 24 degrees…

A: 1. The molar mass of water is 18.01 g/mol. This means 1 mole of water has a mass 18.01 g. So, first…

Q: 7. State the chemical composition (constituent elements and number of atoms of each element) for a…

A: Given  is a molecule of citric acid whose molecular formula is C3H4OH(COOH)3.  Chemical composition…

Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: Be sure to answer all parts. How many H atoms are in 58.5 g of isopropanol (rubbing alcohol), C3H₂O?…

A: Amount of isopropanol = 58.5 gm

Q: You wish to prepare 217 grams of 19.7 % MnCl2. You will need_________________  grams of…

A: Mass of mgcl2= 42.74gm Voulme of H2O= 80.3ml

Q: 150.0ml of 1.3M nitric acid? b) what volume of 6.11M sulfuric acid would be needed to prepare…

A: we will use the molarity equation here according to which M1V1 = M2V2 where M1 = molarity of stock…

Q: A 26.125 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put…

A: From 26.125mg compound 46.540mg CO2 and 19.051mg H2Omoles of C= 46.54 CO244×103CO2×mol Cmol CO2…

Q: Mass of Zn 2.44 g Mass of Cu 0.063 g The mass of Zn and the mass of Cu in a coin are given in the…

A:

Q: A 2.86 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given, mass of 2.86 g sample of a compound produced 1.61 g CO2 and 0.989 g H2O.Moles of CO2 and H2O…

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Calculate the number of water, X,  of crystalization in an unknown sample, having a molar mass of…

A: Some ionic compound (salt) contains a water molecule in their crystal lattice structure. The water…

Q: mass

A:

Q: experiment was done to determine the composition of a mixture of sodium chloride and sodium…

A:

Q: 0.8710 Mass of water, (g) e-8712 x 1.8979 9.9587 11.0850 35. TEMPERATURE Half mass Half ma: Set 1…

A:

Q: An alloy contains 10.8 % titanium by mass and has a density of 13.98 g/cm3. Titanium-49 has an…

A: Number of atoms = 8,926,980,280,926,177,000,000 atoms. Avogadro’s constant = 6.023 × 1023 atoms.…

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: Part B 118 mg C6 H12O6 in 5.01 g H20 Express your answer as a percentage. ? mass % = % Submit…

A: Mass% = (mass of solute/mass of Solution) x 100

Q: Assuming gasoline to be pure octane, C8H18 (actually, it is a mixture of many substances), an…

A: An automobile getting 22.7 miles per gallon would consume 5.10x10^23 molecules per mile. Find out,…

Q: cond A B C D sketch of molecules in it H H C1O H-Ö C нӧ- H H :O: H H H-Ö H-Ö C H C || :0: C O: 010…

A: first, we have to find empirical formula of the given compounds

Q: The chemical formula for lithium hydride is LiH. A chemist measured the amount of lithium hydride…

A: Detail mathematical calculation is shown below

Q: In measuring the sample that is placed into a SCUBA diver's tank it has the following gases: 52.00 g…

A: A numerical problem based on percentage concentration, which is to be accomplished.

Q: What mass of a 6.0% NaOH solution contains 12 grams of NAOH? Enter your answer in grams in the space…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: A chemical reaction was used to produce 1.61 moles of copper (II) bicarbonate, Cu(HCO3)2. What mass…

A: Given data:

Q: Mass of Crucible 42.424 g Mass of Crucible + Lid 47.6894 g Mass of Crucible + Lid + Ba 49.7842…

A: Mass of crucible + lid = 47.6894 g Mass of crucible + lid + barium = 49.7842 g Mass of barium =…

Q: 5.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: A mechanical engineer trainee is trying to study the combustion of natural gas, which is primarily…

A: Molar mass of a compound is equal to sum of atomic masses of all atoms present in that compound.…

Q: Determine the mass in grams of 2.67 x 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

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

Q: A chemist has a sample of an unknown metal.  When the chemist reacts this metal with Cl2, the water…

A: Given, Mass of Beaker and Unknown Metal Solid = 138.31 g. Mass of Beaker, Unknown Metal Solid, and…

Q: Individual atoms, ions, molecules are small and light that can't be measured with nomal balances.…

A: The given mole concept practice explain that we can do conversion between mass and mole using molar…

Q: Chemistry An element consists of 4.35% of an isotope with mass 49.946 u, 83.79% of an isotope with…

A: calculate the average atomic mass- firstly multiply the fraction by the mass number for each…

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.