the number of molecules of niacin

Q: 8. How many oxygen atoms are contained in 5.25 g of NO2 gas?

A:

Q: Calculate the number of moles of oxygen in the given compounds: a. 44.5 g Mg(NO3)2 b. 0.640 mol…

A: We have to calculate the moles of oxygen

Q: 1. Manufacturers of headache remedies routinely claim that their brands are more potent pain…

A: Given that, extra-strength Tylenol uses 600 mg = (600/1000) g = 0.6 g of acetaminophen (C8H9NO2). We…

Q: Determine the mass percentage of hydrogen in CH4  and ‍C2H6.

A:

Q: 1. CH3M9B. 2. H*, H2O 1. HC(OEt)3 MgBr 2. H*, H20 1. 2.

A: 1. Reaction of lactone with 1 equivalent of grignard reagent followed by hydrolysis gives ketone.…

Q: 1. Calculate the number of moles in each of the following: a. 2.45 x 1023 acetylene molecules, C2H2…

A: Note: As per our guidelines, we are supposed to answer first question. Please repost other question…

Q: What is the difference between an alkane, an alkene, and an alkyne?

A: All the organic compounds which are made up of carbon and hydrogen are called as hydrocarbons. The…

Q: What is the number of molecules in 319g of Li2SO4? (Take NA = 6

A: Mass of Li2SO4 = 319 g  NA = 6 x 1023 .  Number of Molecules = ?

Q: Calculate the mass percent of Cu in CuCl2. (Mass of Cu= 63.55 g and Cl= 35.5 g) ii) Calculate the…

A: Mass percent is the percent ratio of mass of element in the compound to the total mass of the…

Q: 4 NH3 + 5 O2 --> 4 NO + 6 H20

A: The given equation is

Q: Arrange the following in order of increasing number of carbon atoms:        i. 12g C

A: a) Mole in terms of mass:               1mol = atomic mass of atom                        (or)…

Q: 1) NaOH, H2O 2) O3 3) Zn, H3O*

A: First OH will add in place of bromine then dehydration will happen and stable alkene will form…

Q: C6H8O is the empirical formula for which of the following compounds? Hydrazine B Acetic acid…

A: Given, C6H8O7

Q: Calculate the formula mass for compound. C6H12O6

A:

Q: Calculate the number of atoms of silicon (Si) in 415 cm3of the colorless gas disilane at 0°C and…

A: GIVEN: Density of disilane =  0.00278 g cm-3 Volume of disilane = V=415 cm3   The molecular formula…

Q: Determine the empirical formula for the compound represented by molecular formula. C6H12O6

A: INTRODUCTION: Empirical formula defines the proportion of the elements present in a compound but not…

Q: Describe the formation of solid potassium sulfide (K2S) from large numbers of potassium and sulfur…

A: ANSWERE IS DISCUSSED BELOW :

Q: What is the empirical formula for the propyl acetate c5 h10 o2

A:

Q: Give the mass percent of carbon in C14H19NO2 O 38.80% O 2.78% O 5.17% O 71.40%

A:

Q: 5) Calculate the mass percent of chlorine for each compound listed. A. C6H6O3CI4 B. CF3C13

A: The answer to the following question is given as:

Q: The total number of atoms in C2H5OH

A: C2H5OH is the formula of Ethanol. Ethanol is also called Ethyl Alcohol.  It can also be written as :…

Q: ?Which of the following are nonelectrolytes in water HF (1) ethanol, C2H5OH (ii) C12H22011 (ii)…

A: Electrolytes are substances that dissolve in the solvent like water by forming ions. The formation…

Q: Calculate the number of oxygen atoms in 15.2 g of trinitrotoluene, C7H5(NO2)3(s).

A: The solution is given below -

Q: Zahara Noor wants to create a presentation of different molecules that helped change the world, but…

A: In this question naming of the mentioned molecule is needed which has the adverse effect on the…

Q: Determine the number of atoms of O in 10.0 g of C₂H₄O₂.

A: Given that,mass of C2H4O2 = 10 gmolar mass of C2H4O2 = 60g/mol number of moles of C2H4O2 = 10 g / 60…

Q: Acetic acid (HC2H3O2) is the active ingredient in vinegar. Calculate the mass percent composition of…

A: The way of representation of concentration of an element in a compound or a component of a mixture…

Q: Br 1) NaOH 2) CH;MgBr 3) H2O

A: The detailed mechanism of each step is given below :

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl6(PO4)+(OH):"4 H2O.…

A: Interpretation : Following questions need to be solved .

Q: What is the mass of 2.11x10^24 molecules of C2H6

A: Number of molecules of C2H6 = 2.11x1024 Molar mass of C2H6 is 30.07 g/mol

Q: Aspartame is an artificial sweetener that that is 160 times sweeter than sucrose(table sugar) when…

A:

Q: A sample of trifluoroacetic acid, C2HF3O2, contains 87.3 g of carbon. Calculate the mass of the…

A: Given that: Mass of carbon = 87.3 g Mass of trifluoroacetic acid = ?

Q: What is the percentage by mass of sodium (Na) in a formula unit of sodium hydrogen carbonate…

A: ⇒ % of Na = Mass of NaTotal mass NaHCO3 x 100

Q: How many carbon atoms are in 200 benzene (C6H6) molecules?

A:

Q: Arrange the following substances in order of increasing mass percent of carbon. a. caffeine.…

A:

Q: Write the empirical formula for the following compounds. C6H6 C8H18 WO2 C2H6O2 X39Y13

A: The empirical formula of a compound is a chemical formula that contains the atoms of the constituent…

Q: Which of the following gases consist of molecules containing four or more atoms? O Rn O NO O CO Ar…

A: Gases; those molecules in which force of attraction are weak and they are free to move in space of…

Q: Which of the following species is NOT a compound? A. Glucose, C6H12O6 B. Water, H2O C. Methane gas,…

A: Molecule: It is a chemical substance formed by a single atom of the element or by the combination of…

Q: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7. How many…

A: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7 Molar mass:…

Q: Calculate the number of molecules

A:

Q: What is the mass of one molecule of water? O 1.0 amu O 18 amu O 1.8 amu O 180 amu

A: 1 mole H2O means molecular weight of H2O.

Q: What is the mass of Cu(C2H3O2)2 ✕ H2O?

A: Molar mass of Cu(C2H3O2)2 .✕H2O = (63.5 x 1) + (12 x 4 + 1 x 6 + 16 x 4) + (18 x X) = 63.5 + 120 +…

Q: 4. N- 1) CH31 (еxcess) 2) Ag20 3) A H2N CCH2CH3 1) NaNO2, H20, HCI 2) HBF4 3) A 5. 6.

A: ->Amine has nucleophilic character because Nitrogen has loan pair hence, give nucleophilic…

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 sample of trifluoroacetic acid, C2HF3O2, contains 33.733.7 g of oxygen. Calculate the mass of the…

A: Given, mass of oxygen = 33.7 g Now, one mole of C2HF3O2 contains two moles of oxygen.

Q: The recommended daily allowance of the niacin (vitamin B3) is 16 mg per day for man. The molecular…

A:

Q: If you are given 9.47 x 1024 formula units of Li¿F, how many moles do you have of this imaginary…

A: Introduction: A formula unit is an empirical formula for an ionic compound. It is the minimum…

Q: Which of the following gases consist of molecules containing three or more atoms?? O Rn O N,0 CI, Ar…

A:

Q: 2 SO2 (g) + O2 (g) 2 SO3 (g)

A: When a reaction attains some constant in their rate of formation of products and rate of…

Q: What amount (moles) of  SO3 is represented by 2.00 kg of sulfur trioxide

A: 32.5 mole of SO3 is represented by 2.00 kg of sulfur trioxide.

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.