anesthetic used to treat a range of conditions such as sunburn, bites, stings and a range of rashes. It is also used in condoms to reduce premature ejaculation.  a) Calculate the percentage nitrogen in benzocaine.   b) How many molecules are in a sample of pure benzocaine, if a sample weighs 550mg? HINT: Avogadro’s number 1 mole = 6.022×1023 particles  c) If you were to prepare 100mL of a 0.26M solution of Benzocaine, determine the

Q: number of moles of (c)  acetate ions, CH3COO-, in 0.43 mol of Ca(CH3COO)2.

A: 2) In 1 mol of Ca(CH3COO)2 has 2 moles of  CH3COO- ion.

Q: How many moles of N₂H4 are in 3.94 x 1022 molecules?

A: N2H4 is called as hydrazine. It is a hydride of group-15 elements.

Q: How many total atoms are in 0.610 g of P2O5?

A: Given,Mass of P2O5 = 0.610 gMoles of P2O5 can be calculated as:

Q: Citric acid was found to contain 37.51% C, 4.20% H, and 58.29% O by mass. What is the simplest…

A: Given :-  Percent composition of C = 37.51%  Percent composition of H = 4.20%  Percent composition…

Q: 5. Analysis of 20.0 g of a compound containing only calcium and bromine indicates that 4.00 g of…

A: Given, The mass of a compound is 20.0 grams The mass of the calcium in the compound is 4.00 grams

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: How many total atoms are in 0.690 g of P2O5?

A: Calculate the moles of P2O5 Moles = grams / molarmas

Q: many molecules were used

A:

Q: A) How many moles of C17H25O6 molecules are in 203 mg of this compound? B) What is the mass of…

A: Mass of C17H25O6 = 0.203 g Molar mass of C17H25O6 = 17x12 + 25x1 + 16x6 = 204 + 25 + 96 = 325 g/mol

Q: 3) The molar mass of Cu (CO3)2.3H20is: 237.562 g/mol a) b) 183.53 g/mol 201.53 g/mol 160.88 g/mol c)…

A:

Q: Use ammonia (NH3) to explain what is meant by thepercent composition by mass of a compound.

A: Ammonia was used to show, what is meant by percent composition by mass of a compound has to be…

Q: How many moles of C4H8O2are in 6.00 g of butyric acid?

A: Given  Mass of C4H8O2 = 6 gram  Number of mole = ?

Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is?

A: Given information,       Mass of C2H6O is 37.80 g.     Molar mass of C2H6O is 46.1 g/mol.

Q: (a) The number of atoms in 6.95 moles of potassium.

A:

Q: How many particlcs arc there in 1.43 grams of a molccular compound with a molar mass of 233 g/mol?

A: Given data contains, Mass of molecular compound is 1.43 grams. Molar mass of the compound is 233…

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: Galantamine is a drug given to patients who have Alzheimer's disease. Its chemical formula is…

A:

Q: Determine the number of moles in 5.73x1023 formula units of BaCl2?

A:

Q: Calculate the mass of diphosphorus pentoxide (P2O5) that contains a million (1.0x1023) oxygen atoms.…

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: How many H atoms are present in 6.95 moles of C2 H5OH?

A: Given, number of moles of C2H5OH = 6.95 moles Number of H atoms = ?

Q: How many total atoms are in 0.610 g of P2O5?

A: Number of moles is the ratio of mass of element and molecular mass of element. It is represented by…

Q: How many atoms are present in (6.78x10^1) g of an element with the following molar mass.…

A:

Q: What is the percent by mass of hydrogen in HC2H3O2?

A:

Q: 1 How many are the oxygen atoms in 111 g of Ca(OH)2? (Atomic mass of Ca = 40)

A: Given 111g of Ca(OH)2

Q: Batrachotoxib in C 31 h42 n2 o6 in active component of South American arrow poison is so toxic that…

A: Given data : Mass of Batrachotoxin(C31H42N2O6) = 0.05 mg = 0.5 x 10-4 g Molar mass of Batrachotoxin…

Q: One mole of (NH4)2HPO4 contains how many moles of hydrogen atoms?

A: First count the number of Hydrogen atoms in 1 mol of given formula.

Q: 1) How many atoms does each molecule of H,SO, has? A) 8 B) 6 C) 7 2) A compound of carbon and…

A: we have to tell which option is correct from given choices of options by telling  number of atoms in…

Q: Progesterone, a female hormone, has the formula C21H30O2. In a 25.00 g sample of this compound, a.…

A:

Q: Tetraethyl pyrophosphate, TEPP, is 33.11% carbon,6.95% hydrogen, 38.59% oxygen, and 21.35%…

A: First, we need to calculate the number of moles of each element in 100g of the compound. We do this…

Q: What is a MOLE? O Aunit of substance containing a certain amount expressed in grams O Aunit of…

A: The given question asks to select the right option that accurately defines a mole of any substance.

Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

Q: A compound contains C, H and O. The compound is 49.31 % by mass carbon, 43.79 % by mass oxygen with…

A: The empirical formula of a chemical compound is the simplest whole number ratio of atoms present in…

Q: Regular treatment with low dose aspirin is used to help prevent cardiovascular disease. How many…

A:

Q: 6) How many molecules and atoms in 6 moles c

A: The answer of following question is given in next step.

Q: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

A:

Q: What are two errros that could cause one of your mass percentages to be too low?

A: Mass percent or weight percent of a component in a substance can be defined as the mass of the…

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.