Calculate the number of moles in 8.36x1021 atoms of silver (Ag)? How many moles are there in 3.68 g of iron (Fe)? Determine the mass of 0.265 moles of ammonia: NH3? What is the percent composition of Magnesium, Mg, in magnesium phosphate, Mg3(PO4)2? What is the percent composition of carbon, C, in heptane, C7H16?

Q: The formula for disulfur decafluoride is S2F10 . a. How many molecules are in 1.57 grams of disulfur…

A: a) Given: 1.57 g of S2F10. The no of molecules are determined as follows,

Q: A student is running an experiment in which 51.7 grams of BeSO4 is needed, but the only jar of…

A: In the lab the beryllium sulfate present at beryllium sulfate tetrahydrate. The mass of BeSO4 needed…

Q: What mass of c37h49n2o12 would contain 4.35g of oxygen? What is the mass of exactly 1500 molecules…

A: Answer:- This question is answered by using the simple concept of calculation of molar mass using…

Q: E4. If aluminum (Al), with an atomic weight of 27, combines with oxygen (O), with an atomic weight…

A: The balanced reaction of the formation of Al2O3 is as follows: Atomic weight of Al = 27 g/mol…

Q: 3.150 The compound 2,3-dimercaptopropanol(HSCH2CHSHCH2OH), commonly known as BritishAnti-Lewisite…

A: Given: Molecular formula of 2,3-dimercaptopropanol or BAL = HSCH2CHSHCH2OH = C3H8OS2 Molecular mass…

Q: how many ions or atoms of each element are in 160.5 g of the following substances?  a) H2 _?_ x1025…

A:

Q: The active ingredient in Tum is calcium carbonate. a). What is the chemical formula of calcium…

A: A.Chemical formula of calcium carbonate is CaCO3. B. Molar mass of calcium carbonate is 100g/mol.…

Q: Pesto-Bishop, which helps provide soothing relief for an upset stomach, contains 300 mg bismuth…

A: 1 mg = 1000 g. The molecular formula of C21H15Bi3O2 contains three molecules of bismuth…

Q: What is the percentage by mass of chlorine in the insecticide Lindane, C6H6Cl6?

A:

Q: The chemical formula for chlorophyll is C55H72MgN4O5. Given the molar mass of the compound is…

A: molecular mass of chlorophyll  = 893.49 g/mol

Q: Chlorine atoms cause chain reactions in the stratosphere that destroy ozone that protects the…

A:

Q: Use the molar mass of Ca3(PO3)2 to calculate the moles of oxygen in 6.66 x 106 g of CP.  Give your…

A: given mass of  Ca3(PO3)2 = 6.66 x 106 g    Molar mass of Ca = 40.078 g/mol Molar mass of P = 30.974…

Q: A compound is found to consist of 1.37g of iron and 2.62g of chlorine. What is the percent by mass…

A: Given that: mass of iron = 1.37 g mass of chlorine =  2.62 g  To find: the percent by mass of…

Q: What is the mass in milligrams of? (a) 0.367 mol of HNO3? (b) 245 mmol of MgO? (c) 12.5 mol of…

A:

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

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

Q: What is the mass in grams of 7.3 x 1024 molecules of lactic acid (C3H6O3), the compound responsible…

A:

Q: Ibuprofen, the anti-inflammatory drug in Advil, has the formula C13H18O2 What is the empirical…

A: Ibuprofen is an anti-inflammatory drug

Q: A sample of glucose, C6H12O6, contains 1.250 x1021 carbonatoms. (a) How many atoms of hydrogen does…

A: a).

Q: For the balanced chemical reaction 4Al + 3O2 → 2Al2O3 how many grams of Al2O3 can be made by…

A:

Q: Dinitrogen oxide (or nitrous oxide), N2O, also known as laughing gas, is widely used as an…

A:

Q: What is the mass of taurine if the number of moles is 0.4249 mol? What is the number of moles in…

A:

Q: Ammonium phosphate ((NH,) PO,) is an important ingredient in many fertilizers. It can be made…

A:

Q: C6H12O6  +  6O2 →  6CO2  +  6H2O How many grams of glucose are burned to produce the 6 moles of…

A:

Q: Consider the chemical reaction aC,H6 + 6CO2 + CH2O → ¿C2H;OH, where a, b, c, and d are unknown…

A: To balance the Chemical Reaction.,

Q: The compound 2,3−dimercaptopropanol (HSCH2CHSHCH2OH), commonly known as British anti-Lewisite (BAL),…

A: The molecular formula of BAL is : C3H8OS2 Molar mass of BAL = 124g. 1 mole =6.023x1023 atoms  mass%…

Q: (a) What is the mass, in grams, of 1.223 mol of iron(III)sulfate?(b) How many moles of ammonium ions…

A: (a) Given, Moles of iron (III) sulfate is 1.223 mol Molar mass of iron (III) sulfate is 399.88 g/mol…

Q: The chlorophyll-a molecule (C55H72MgN4O5) is important in photosynthesis. (a) Determine its…

A: a) Since molecular mass = sum of ( Atomic mass of atoms X number of atoms in the molecule)  Hence…

Q: Don't get how to fill in the table attached below.

A: The number of water molecules present inside a crystal is known as water of crystallization.The…

Q: If 60.2 grams of Hg combines completely with 24 grams of Br to form a compound, what is the %…

A: Given: Mass of mercury (Hg)=60.2 g Mass of Bromine (Br)=24 g The total mass of compound =(60.2 +24)…

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

A:

Q: Which for every statement best describes the relationship between a mass of CH, and moles For every…

A: Given: CH4 To find: Relationship between mass of CH4 and moles Solution: Number of moles is the…

Q: The molecular formula of aspirin is C9H8O4. How many aspirin molecules are present in one…

A:

Q: How many moles are in 6.02 x 10^23 atoms of CO2?

A:

Q: What is the mass in grams of 6.57 × 10²⁵ molecules of N₂? 7.57 × 10²⁵ molecules of O₂?

A:

Q: What is the percent of carbon in the pesticide DDT (C14H9Cl5) ? The molar mass of C14H9Cl5 is 354.5…

A: The given data: The chemical formula for DDT = C14H9Cl5 The molar mass of DDT = 354.5 g/mol To…

Q: 1. How many molecules are there in 150 g of C12H22O11?

A: Given :-we have to find how many moleculerare there in 150 gm of C12H22O11

Q: Gibberellic acid, C19H22O6, is used to promote plant growth, particularly in seedlings. How many…

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

Q: A combustion analysis is a technique to find the the empirical formula of compounds. In a combustion…

A:

Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

A: The given term in the balanced equation is: 2Ba(OH)2⋅8H2O  The subscripts in a molecule represent…

Q: Ibuprofen, the anti inflamatory ingredient in Advil has the formula C13H18O2 A) How many molecules…

A: We have to predict the molecules  , number of H atoms, mole of ibuprofen, mass of ibuprofen.

Q: The empirical formula of a compound containing carbon, hydrogen and bromine is C₂H₄Br. The molar…

A:

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

Q: How many molecules are there in 42.0 g of nitrogen gas, N2?

A: We know that : 1 mole of any substance has 6.023 x 1023 molecules Given that : Mass of N2 = 42.0 g…

Q: What mass of carbon dioxide would you need to have 0.65 moles of CO2?

A: Given : Moles of CO2 = 0.65 mol

Q: 01.)What is the molecular formula of a compound with the empirical formula As2O5and a formula mass…

A: Given values are,  Empirical formula= As2O5 And formula mass = molar mass= 459.678 amu Now from…

Q: 1) Glucose has the formula C6H12O6. What is the percent composition of oxygen in glucose to three…

A: 1. Given data:  Glucose  molecular formula = C6H12O6 % composition of oxygen = ? Molar mass of…

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.