Calculate the number of molecules present in each of the following samples. (a) 6.59 mol of carbon monoxide molecules (b) 6.57 g of carbon monoxide 4.0 molecules (c) 2.79 x 10-6 g of water molecules (d) 2.97 x 10-6 mol of water molecules (e) 5.13 g of benzene, C6H6 40 molecules

Q: What is the mass of 2.11x1024 molecules of C,H6?

A: 1mole of any substance contains Avogadro no. or 6.023×10^23 no. of molecules. The rest is solved by…

Q: What is the molecular mass of iron (III) oxide (Fe2O3)? Enter your answer rounded to four sig figs,…

A:

Q: . How many oxygen atoms are in 76.3 g N2O4? Conversion must be set-up in one step using dimensional…

A:

Q: Explain the Convert between grams of a compound and grams of aconstituent element ?

A: Given statement: "The subscripts in a chemical formula give relationships between moles of the…

Q: What is the empirical formula of C4H10N2

A: Given Molecular Formula  : C4H10N2

Q: Which of the following has more atoms: 0.302 g ofhydrogen atoms or 14.7 g of chromium atoms?

A: If the number of moles of a substance are more, the number of atoms are also more. Number of moles…

Q: Acetaminophen, a common aspirin substitute,has the formula C 8 H 9 N O 2 . Determine the numberof…

A: Given  Molecular formula of acetaminophen = C8H9NO2  Molar mass of C8H9NO2 = (12 x 8 ) + ( 1 x 9 ) +…

Q: If the molecular weight of the compound of Na2S2O3 is 158.2g/mol, what is the molecular formula?

A: In the sodium thiosulfate, the number of a sodium atom, sulfur atom, and the oxygen atom is 2, 2,…

Q: How many molecules of C2H4 are in 15.0 g of this compound?

A: The molecular formula of compound is C2H4. The amount of compound is 15.0 g.

Q: What is the total number of atoms in the following expression:  17Fe2 (CO3)3?

A: The farmula of the compound is 17Fe2 (CO3)3

Q: g figs 6. How many moles of calcium chloride are in 2.25 x 10 molecules of calcium chloride?

A:

Q: Aspartame, C14H18N2O5, a low-calorie sweetener, is about 200 times sweeter than sugar. How many…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: b. Determine the final units of the following expression, which provides the molecular weight of 5.3…

A: Given moles of water = 5.3 mol Molar mass of water = 18.0 g/mol

Q: 1. How many molecules of aspirin C,H804 if there are 0.360 g of it?

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: What is the percent mass of iron in the compound Fe3O4

A:

Q: Caffeine, a stimulant found in coffee, contains 49.5% C, 5.15% H, 28.9% N, and 16.5% O by mass and…

A: First we calculate the emperical formula . Then claculate n with the help of molar mass as given in…

Q: The molar mass of caffeine is 194.19 g. Is the molecularformula of caffeine C4H5N2O or C8H10N4O2?

A: Caffeine is a natural stimulant most commonly found in tea, coffee and cacao plants. It works by…

Q: Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3. If you…

A: 1 mole of a substance contains Avogadro's number.

Q: The bitter-tasting compound quinine is a component of tonic water and is used as a protection…

A: Data given: Mass of the sample = 0.487 g Mass of carbon dioxide produced = 1.321 g Mass of water…

Q: What is the molecular mass of CH¿I? amu

A: Molecular mass is defined as the is the mass of a given molecule. The unit of molecular mass is amu…

Q: Acetylsalicylic acid, which is C9H8O4, is more commonly known as the active ingredient in Aspirin.…

A: Molar mass- The mass of one mole of a substance in grams is called molar mass. The numerical value…

Q: Determine the molar mass of Al2(SO.),-5H,0.

A: To determine the molar mass of

Q: Calculate the mass in grams 5.40•1024 molecules of propane. The chemical formula for propane is…

A: The chemical formula of propane is C3H8. Chemical formula of a compound indicates 1 mole of its…

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

A:

Q: The molar mass of nicotine C10H14NX is 162 g/mol. What is the value of x?

A: Given that, Molar mass of nicotine C10H14Nx is                162 g mol-1.  Value of x = ?

Q: What mass of hydrogen gas H2 is present if there are 5.00E23 atoms of hydrogen?

A: Given: Atoms of hydrogen are 5.00×1023 To find: Mass of hydrogen gas

Q: 5. The empirical formula of a compound is CH, If the molar mass of this compound is about 13, what…

A: Given: The empirical formula of compound=CH The empirical formula mass = 12 x 1 + 1 x 1…

Q: A patient is having an allergic reaction and takes a 12.5mg tablet of the over‑the‑counter…

A: The mass of the tablet is = 12.5 mg = 12.5 x 10-3 g The molecular formula of diphenhydramine…

Q: The chemical formula for diethyl amine is: (CH,CH,), NH Calculate the molar mass of diethyl amine.…

A: Atomic mass of carbon : 12.0107 u  Atomic mass of Hydrogen : 1.007844 u  Atomic mass of Nitrogen :…

Q: 3N22SO4 # of molecules: # of elements:

A: The name of Given molecule is sodium sulphate. So the molecular formula is Na2SO4 . Therefore number…

Q: An elemental analysis of the acid indicates that it is composed of 5.89% H, 70.6 % C and 23.5% O by…

A:

Q: The "setup" for the problem, "what is the mass, in grams, of 5.69*1019 atoms of Xe?" which is…

A: Given : number of atoms of Xe = 5.69 X 1019  Since number of atoms = moles X Avogadro's number

Q: For the compound Glucose ( C6H12O6 ), What is the percent Oxygen in glucose?

A: We need to find the amount of oxygen present in glucose. We will calculate the given problem by…

Q: On combustion analysis, a 0.450 g sample of a chemical compound gves 0418 water and 1.023 g of…

A:

Q: 2. How many grams of aspirin (C,H3O4) are present in 7.95 102 molecules of C,H;O4. The answer is

A: Molar mass of aspirin = 180.16 g/mol  It means 1 mol of aspirin has= 180.16 g  1 mol of any compound…

Q: What is the molar mass of the imaginary compound (NH4)2(SO2) ?   State your answer in two decimal…

A:

Q: C2H2O is the empirical formula for Ethanone. Asprin has the formula C9H8O4 how do I get this answer?

A:

Q: A substance has the molecular formula C6H12O2. What is its empirical formula?

A: A substance has the molecular formula C6H12O2. The empirical formula has to be given below.

Q: Calculate the percentage by mass of the indicated element inthe following compounds: (a) carbon in…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Hi, I am working on a homeowrk problem and I can't figure out how to approach it.  How would I go…

A: Molecular formula of the compound suggests that every molecule of CO2 contains 2 O atoms. Hence,…

Q: One of the hydrates of CoSO4 is cobalt(II) sulfate hexahydrate . A 71.1 gram sample of CoSO4 6 H2O…

A: Answer

Q: Thyroxine is a hormone secreted by the thyroid gland and has a formula of C15H11NO4I4. How many…

A:

Q: What is the molecular mass of chloroform if 0.0275 mol weighs 3.28 g?

A: Given: Number of moles = 0.0275 mol mass of chloroform=3.28g To find: The molecular mass of the…

Q: The molecule Al(OH), has Al atom(s), O atom(s) and v H atom(s). Therefor, the molar mass of Al(OH),…

A: Molar mass is the mass of a chemical element divided by the amount of substance (mol). It can be…

Q: 5) What is the percent composition of Carbon, Hydrogen and Oxygen in CaH&O11 ?

A: Percentage composition of an element tell about the percentage of the element present in the…

Q: What would be the molar mass of this compound (C5H10) in grams?

A: The molar mass of a compound is the sum of atomic masses of  individual atoms present in that…

Q: When 7.003 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 20.50 grams…

A: The empirical formula of a molecule is represented by the atomic symbol of the constituting elements…

Q: What is the molar mass of ammonium phosphate, whose chemical formula is (NH4)3PO4?

A: Molar mass of any compound = atomic mass of all the atoms present in the chemical formula  Since in…

Q: The percentage composition by mass (to the nearest 0.1) of C in sugar, C8H10O7, is ______________.

A: The ratio of mass of particular atom to the total mass multiply by 100 is known as percentage by…

Q: A large organic molecule has a mass of 1.41 * 10-21 kg. What is the molar mass of this compound?

A: Given that, Mass of organic molecule= 1.41×10-21 kg Molar mass is given by the following formula…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.