Calculate the number of atoms of hydrogen (H) in 323 cm3 of the colorless gas ethylene at 0 °C and atmospheric pressure, where its density is 1.25×10-3 g cm-3. The molecular formula of ethylene is C2H4.

Q: 3. СНО + _(3a) + NH.OH → _(3b) +Agl+ NH&NOs + H2O

A: When benzaldehyde is treated with silver nitrate in ammonium hydroxide solution , which is also…

Q: 3. Н.РО, 4. Al(ОН),

A: Given, 3. H3PO4 4. Al(OH)3      Required,                    Percentage composition of the above…

Q: 2. A sample of a substance containing only carbon, hydrogen, and oxygen has mass x in grams. It is…

A: The equation for the burning of carbohydrate is: x12a+b+16c CaHbOc  +  O2   →    y44CO2  +  Z18…

Q: Using grammatically correct English sentences, describethe relationship between the number 6.022 *…

A: Number of moles of a chemical compound is used to measure the amount of compound in a given mixture…

Q: Explain in detail how you could separate a mixture containing Al203, KCI, and NH4I using various…

A: To segregate these components from the mixture, various physical methods can be used. 1. Solubility…

Q: 8 KCIO3 + C12H22O11 → 8 KCI + 11 H2O + 12 CO2

A: We have to tell about reactants in this question .

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

A: Molar mass of Benzene = 78 g/mol % of C = 92.26%  Molecular formula of benzene = ?

Q: what is the mass percent of fluroine in C2Cl4F2? 5.893% 18.65% 69.58% 11.78% or 9.323%

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

Q: Which of the following setups would you use to obtain the number of O atoms in 86.8g of Cr(NO3)3?

A:

Q: Mass Percent of Oxygen (theoretical) 3 (Molar Mass of O) Molar Mass of KClO3 x 100

A: For the potassium chlorate (KClO3)  Using the molar mass of oxygen and KClO3 we can calculate the…

Q: Calculate the Molar mass of a volatile liquid (g/mol) from the following data:- Mass of dry flask,…

A: To calculate the molar mass of the liquid we should know the value of moles of liquid and the mass…

Q: +3Ca (OH) acs)→ 6H20(1) + Cas (POw). (s) b) +3CACOH) 2cs)

A:

Q: The percentage by mass of nitrogen is 46.7% for a species containing only nitrogen and oxygen.…

A:

Q: Calculate the mass percent of manganese (Mn) in potassium permanganate (KMnO4).

A: First of all, before leading to the solution we will learn about the meaning of mass percent. The…

Q: 2. Given the incomplete equation: 2 C +3Н, х Which compound is represented by X?

A: Two moles of carbon  Three moles of hydrogen  Compound formed = ?

Q: How many hydrogen atoms are in each of the following:   Part A: C2H5OH Express your answer as an…

A: Atom is the smallest unit of a substance. Atoms combine to form a molecule which is a stable entity.…

Q: Dinitrogen monoxide (N₂O; nitrous oxide) is a greenhousegas that enters the atmosphere principally…

A: Isotopes possess same number of protons but differ in number of neutrons thus, they have different…

Q: For the compound (Ca(OH)2) or calcium hydroxide, find the per cent composition of the element…

A: Given: The atomic weight of Ca=40 Molecular mass of calcium hydroxide= 1 x 40 + 2 x (1 + 16)=74…

Q: The representations 14N or 15N give more information than simply the chemical symbol N. Explain?

A: Interpretation-  Explain why the representation 14N or 15N give more information than simply the…

Q: What do the peaks of the mass spec of C6H10 show?

A: The structure of the unknown molecules can be obtained by analyzing their spectroscopical results…

Q: 1.) What is the molecular formula of a compound with the empirical formula CH and a formula mass of…

A: 1 since ,          Empirical formula = CH therefore , Empirical formula mass = 12+1=13  amusince ,…

Q: 2.48g of hydrated copper(ii)chloride (CuCl2.xH2O) were heated to constant mass. 1.96g of anhydrous…

A:

Q: 2. What measurements might you record regarding water samples to assist with the quantification…

A: Q2)  The analysis of water samples are done to know the water quality of the water.

Q: If there are 6.2x1022 molecules of calcium carbide, CaC2, what mass of acetylene (C2H2) can be…

A: The solution of above question is-

Q: What is the mass to charge ratio of a propane ion (C3H3*) if one of the carbon atoms is a 13C and…

A: The mass to charge ratio of the propane ion (C3H8+) can be calculated by taking the sum of the mass…

Q: NH2 Cbz OBn 1.) NaOH, H20 2.) H2 (excess)/Pd OMe

A: The amino acids undergo condensation reaction in which water molecule is eliminated and peptides are…

Q: What is the molar mass of the compound with the formula X2Y2Z7, where X is an alkali metal from the…

A: Given: The compound with the molecular formula, X2Y2Z7, X= alkali metal from the 3rd period. Y= an…

Q: Polyisobutylene is a synthetic elastomer, or rubber. The corresponding monomer is isobutylene, which…

A:

Q: What do the formula H2O and H2O2 tell about composition? Are they the same compounds? Justify your…

A: The formula H2O and H2O2 belong to two different compounds. The chemical formula of H2O belongs to…

Q: What number is 5.12234E3 in standard form?

A: Given that;     A number 5.12234E3 , we have to convert in into standard form.

Q: Explain the difference between molecular mass and nominal mass. Give the value of the molecular mass…

A: While calculating nominal mass a molecule the atomic mass of constituent atoms of most abundant…

Q: 3. C9H18 + 02 Co2 + H20 Find the difference between the coefficients of the reactants. O A. 15 О в.…

A: Given reaction,      C9H18 + O2 → CO2 + H2O

Q: 2a. Calculate the volumes of ammonia and oxygen required to produce 28 moles of nitrogen dioxide.…

A: Given: The number of moles of NO2 is 28 mol. The given reaction is: 4NH3+7O2→4NO2+6H2O

Q: A student found that her mixture was 13% NH¼CI, 18% NaCl and 75% SIO2. Assuming that her…

A: on addition of the given percentages, the total percentage of the solution comes out to be as 106%…

Q: What volume (in cm3) cm3 of glacial acetic acid (100 % of acetic acid, with a density of 1.050 g/cm3…

A:

Q: 0.5Ν2 (NH3 (g) H2 (g) (g) + 1.5H2 (g) +1.2502 (g) + 0.502 (g) NH3 (g) · NO (g) H2O (1) ΔΗ1° + 1.5H2O…

A:

Q: What do the formula H2O and H2O2 tell about composition? Are they the same compounds? Justify your…

A:

Q: CF3 HBr ? ÇF3 CF3 В. Br А. Br Br CF3 Br CF3 D. Br Br O A O B O D

A:

Q: 1. CH,CH,CI, AICI, 2. Cl, FeCl, D. AIC3 E. NH2 AICH

A:

Q: The slope of your graph in part A is the inverse of the deity of 1 w Ohe inverse of the density of…

A: Physical property of element sulfur can be tasteless, solid and pale yellow color with insolubility…

Q: The sugar content of a wine is determined five times, and the following results obtained: 150, 155,…

A: An outlier can be determined using Q-test.

Q: Give the empirical formula for decaborane, whose molecularformula is B10H14.

A: The given molecular formula is B10H14 The empirical formula is the one which shows the simplest…

Q: The sulfur in an 3-tablet shape of captodiamine C21H29NS2 was converted to sulfate and determined…

A:

Q: How many g of water you need to add into HCl solution (V= 130.0 cm3 mass percentage 22.0 % (w/w),…

A: Mass = Volume ×Density

Q: 1.00 g of hydrated potassium carbonate, K2CO3•nH2O, is heated to 250 °C to give 0.836 g anhydrous…

A:

Q: What is the lowest digit numbering scheme that should be used to name the molecule shown below? Br…

A: We know that,  Fluorine has higher priority than Bromine atom in the priority table.  So, it's…

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.