Phosphorus trichloride is important in the manufacture of insecticides, fuel additives, and flame retardants. Phosphorushas only one naturally occurring isotope, ³¹P, whereas chlorinehas two, ³⁵Cl (75%) and ³⁷Cl (25%). (a) What different molecu-lar masses (amu) can be found for PCl₃? (b) Which is the mostabundant? (c) What is the ratio of the effusion rates of the heavi-est and the lightest PCl₃ molecules?

Q: How many atoms or ions of each element are in 157.3 g of the following substances? (a) H₂ x 1025 H…

A:

Q: How many protons, neutrons, and electrons, respectively, are present in the ionic species 19779Au3+?…

A: All the details are explained in handwritten solution.

Q: What is the mass (in ka) of 6.89 x 1025 molecules of CO2? The moiar mass of co2 is 44.01gimoi. :-

A: The mass of CO2 is calculated by finding moles of CO2.

Q: What is the mass percentage of Cl in hydrochlorothiazide, C₇H₈ClN₃O₄S₂?

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Q: Calculate the mass percent of H in C3H6O3.

A: Introduction- The mass percent of any element is calculated by the ratio of mass of the element in…

Q: Would it be possible to determine the percentage of oxygen in NaCIO3?

A: The given compound is = NaCIO3 The percent of oxygen in this compound is =?

Q: Compound Y contains lead and oxygen only. 15.0 g of Y was found to contain 12.99 g lead. Find out…

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Q: Determinate the molar mass of C6H12O6 ?

A: Given,               C6H12O6Required,                     The molar mass of C6H12O6 .

Q: 12) How many grams of hydrogen are in 22.9 g of C6H12O6?

A: Given information,     Mass of glucose is 22.9 g. There are six moles (or 12 atoms) of hydrogen in…

Q: Balance the following chemiccal equation  C12H26(s) + O2(g) --> CO2(g) + H2O(l)   Combustion of…

A: We have to balance the following given chemical equation    C12H26(s) + O2(g) --> CO2(g) + H2O(l)…

Q: Write the name of each of the following substances: (W (a) (HCOO)2Ni-½H2O (b) Zn(SCN)2 (c) Ag2CrO4…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: What is the molecular mass (in amu) of a synthetic chlorinated caffeine molecule?  The formula for…

A: Given:

Q: An organic compound, which has the empirical formula C2H5 has an approximate molar mass of 145…

A:

Q: he number of protons, neutrons, and electrons, respectively, in the ionic species 209 83Bi3+ are:…

A:

Q: Uranium is used as a fuel, primarily in the form of uranium(IV) oxide, in nuclear power plants. A…

A:

Q: Give the number of atoms of the specified element in a for-mula unit of each of the following…

A: step 1) Formula unit mass is the sum of all the atomic masses present in the given compound. a)…

Q: (a) How many moles of ammonium ions are in 0.642 g of ammonium carbonate? 8.04e21 X mol (b) What is…

A: We have to calculate the required quantities.

Q: hat is the mass percent of hydrogen in decaborane, B10H14?

A: Percent composition is defined as the ratio of  mass of single  element in one mole  to the mass of…

Q: 2. Balance the following equations by supplying the lowest whole numbers for w, x, y, and z: (a) w…

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,

Q: A given sample of xenon fluoride contains molecules of a single type XeFn, where n is some whole…

A:

Q: A sample of calcium nitrate crystal hydrate with its mass of 1.1808 g was heated at 150oC resulting…

A:

Q: Calculate (to the nearest 0.1 u) the formula mass of these compounds. (a) acetaminophen, C8H9NO2…

A: Formula mass is the sum of all the atomic masses present in that compound. Atomic masses: C = 12 u N…

Q: (a) Atoms are very small compared to objects on the macroscopic scale. The radius of a vanadium atom…

A: (a)Calculate the radius of vanadium atom in centimeters and meters:

Q: Suppose a certain fertilizer has the following composition: ingredient ammonium phosphate…

A: Let us consider the mass of total mixture is 100 gram. Ammonium phosphate ,(NH4)3PO4 is present 14%.…

Q: The human body excretes nitrogen in the form of urea,NH₂CONH₂. The key biochemical step in urea…

A: Formula of Urea is NH2CONH2  molecular mass of urea = 60 amu Formula of Arginine is C6H14N4O2…

Q: How many moles of hydrogen would be found in 1.5 moles of (NH4)2SO4 ?

A:

Q: What is the molar mass of the sodium alum salt, KAl(SO4)2 •12H2O?

A:

Q: 2) What is the mass of 5.13 moles of NazCr207?

A: Given :- number of moles of Na2Cr2O7 = 5.13 mol  To calculate : Mass of Na2Cr2O7

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.