v, the number of v of Rf is 104 and its v is 267. Therefore the number of protons is One of the isotopes of the element rutherfordium is symbolized by 10ARF. This means the electrons is v, and the number of neutrons is

Q: The lanthanide elements react with oxygen to give compounds of the type Ln2O3 (where Ln stands for a…

A: Empirical formula :- The simplest formula which shows only the relative number of atoms of different…

Q: (a) In the certain hydrated salt MSO3-4H20, the mass percentage of H2O is 44.71%. Identify the…

A:

Q: Write the empirical formulas of the following compounds: (a) Al,Br6, (b) Na,S,O4, (c) N,O5, (d)…

A: Interpretation -  To write the empirical formula of the given compounds -  Al2Br6 Na2S2O4 N2O5…

Q: (a) What is the mass, in grams, of one mole of 12C? (b) Howmany carbon atoms are present in one mole…

A: (a) Molar mass of Carbon-12 is 12.01 g/mol. Hence, 12.01 g of pure carbon-12 is known as one mole of…

Q: The insecticide dieldrin contains carbon, hydrogen,oxygen, and chlorine. When burned in an excess…

A: Given, a 1.510 g sample of insecticide dieldrin on burning yields 2.094 g CO2 and 0.286 g H2O.…

Q: A certain metal, M, forms two oxides, M2O and MO. If the percent by mass of M in M2O is 73.4%, what…

A: The answer is given below

Q: 250 g of an alloy contains 52 wt% tin (Sn) and 48 wt% lead (Pb). The atomic weight of Sn is 118.7…

A: It is defined as amount of solute ( in grams) present in 100 g of solution is called " mass…

Q: Boron has two naturally occurring isotopes, ¹⁰B (19.9%)and ¹¹B (80.1%). Although the B₂ molecule…

A:

Q: the atomic masses of 10B and 11 B are 10.012938 and 11.009305 amu, respectfully. The average atomic…

A:

Q: One atom of lithium, Li, reacts with fluorine, F, to produce lithium fluoride, LiF2. The atomic mass…

A: Which statement about the reaction is correct?

Q: When iron comes into contact with oxygen in the presence of water, it undergoes a chemical reaction,…

A:

Q: #8: A 5.00 g sample of hydrated barium chloride, Bacl, nH,0, is heated to drive off the water. After…

A: Chemical compounds are the combination of molecules. Different molecules are involved in bonding and…

Q: In a 6.43E1 g sample of NaHCO, how many grams of sodium are present? Use two decimal places in…

A: Mass of NaHCO3 = 6.43E1 = 64.3 g

Q: the number of copper atoms in a 3.0g lump of copper is 2.8x1022. how many electrons are present  in…

A: the number of copper atoms in a 3.0g lump of copper is 2.8x1022.  The number of electrons present in…

Q: The reaction of sulfur powder (S8) with oxygen gas (O2) results in the formation of one of many new…

A: We know that, molar mass of O = 15.999 g/mol molae mass of S = 32.065 g/mol

Q: The ratio of the mass of O to the mass of N in N20z is 12:7. An- other binary compound of nitrogen…

A: The given ratio of mass O to the mass of N in N2O3 is 12:7 Mass of O in N2O3 = 3x16 amu…

Q: There are 6.02x1023 atoms in one mole of any element. Assuming that the titanium rod in the question…

A: Given that, Number of moles of titanium = 4.70 moles

Q: p3, mass n03 %3D

A:

Q: The composition of sorbic acid is 64.3% C, 7.2% H and 28.5% O. Since its molecular mass is 112 alb,…

A: Given : Mass % : C=64.3% H=7.2% O= 28.5%

Q: The combustion of liquid propane (C3H8) yields gaseous carbon dioxide and water vapor.  If 2.33…

A:

Q: What is the mass, in grams, of each of the following samples? a.) 2.75 mol of iron, Fe  b.) 0.115…

A: Mole of solid sample is calculated by below formula,

Q: Polyisobutylene is a synthetic elastomer, or rubber. The corresponding monomer is isobutylene, which…

A: Given, molecular formula C4H8

Q: 3.123 In the formation of carbon monoxide, CO, it is foundthat 2.445 g of carbon combine with 3.257…

A:

Q: The combustion of liquid propane (C3H8) yields gaseous carbon dioxide and water vapor.  If 2.48…

A:

Q: An alcohol is 70.57 % C and 5.935 % H by mass. The rest is oxygen. What is the empirical formula of…

A:

Q: A metal M forms a compound with the formula MCl4. If the compound is 66.14% chlorine by weight, what…

A: The molecular formula of metal chloride is = MCl4 The mass percentage of chlorine is = 66.14 %

Q: What is the mass of a mole of electrons if one electronhas a mass of 9.11 × 1 0 -28 g?

A: Because, 1 mole=6.022×1023 molecules/particles Therefore, 1 mole of electron=6.022×1023 electrons

Q: If the mass percentage of O in a sample is 68% and the total mass of the sample is 4.128 Kilograms-…

A:

Q: 7.53 × 10^23 molecules of an element has a mass of 88.64 g. What is the identity of this molecular…

A: 7.53 × 1023 molecules of an element have a mass of 88.64 g. This molecular element is to be…

Q: A sample of 0.741 mol of a metal M reacts completly with excess flourine to form 57.8 g of MF2. What…

A: Chemical equation: M  +  F2  ------>  MF2 Number of moles of MF2 = number of moles of M

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

A: For a compound consisting of two components A and B, mass% of A abd B are related to each other as…

Q: A toy top has a mass of 32.0 g Cu. How many atoms Cu are in this spinning top, given that the…

A:

Q: An oxide of the element M has the formula M207 and it is known from experiments that 1.000 gram of M…

A:

Q: In using a mass spectrometer, a chemist sees a peak at a mass of 30.0106 AMU. Of the choices 12C2…

A:

Q: A toy top has a mass of 32.0g Cu. How many atoms Cu are in the spinning top, given that the average…

A: Given information: Mass of Cu = 32.0 g Molar mass of Cu = 63.55 g/mol

Q: c- The formula for water is contains .. (... x1+...X 16 =....) D- the combustion of fuels is…

A: Water is a compound and is made of Hydrogen and oxygen. Chemical reactions are of various types-…

Q: Natural rubidium has the average mass of 85.4678 u and is composed of isotopes85Rb (mass = 84.9117…

A: Mass of the Rb = 86.913 amu. Given data: 85.4678 amu is average mass of the Rb Mass of 85Rb =…

Q: The average atomic mass of carbon is 12.011 amu. Assuming you were able to pick up only one carbon…

A: Given that, the average mass of carbon is 12.011 a.m.u. The given mass of any of the carbon isotopes…

Q: A compound is 32.88% C, 4.14% H, 19.18% N and 43.80% O by mass, and it has a molar mass of 219…

A:

Q: The number of nonmetallic atoms in Al2 (SO3 )3 is?

A: The given compound is Al2(SO3)3. In periodic table right end elements are non metals and left end…

Q: 7. What is the mass in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Given mass of Carbon = 1.076 g Molar mass of Carbon = 12.01 g/mol Molar mass of C6H8O6 = 176.12…

Q: Lithium nitride reacts with water to produce ammonia and lithium hydroxide according to the equation…

A: Given,ND3 = 140 mg (or) 0.14 gMolar mass of ND3 = 20.042 g/molMolar mass of D2O = 20.027 g/mol

Q: 127: An iron ore contains 38% Fe203 by mass. What is the maximum mass of iron that can be recovered…

A: 127. Given information, An iron re contains 38% Fe2O3 by mass Mass of iron ore = 10.0 kg

Q: Monel metal is a corrosion-resistant copper-nickel alloy used in the electronics industry. A…

A: Given data is: Length of plate = 15.0 cm Width of the plate = 12.5 cm Thickness of plate = 3.00 mm…

Q: The molecular formula of hexakis(methylthio)benzene is C12H18S6. What is the percentage (by mass) of…

A: We have to calculate the % by mass of C in hexakis(methylthio)benzene .

Q: Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of…

A: Isotopes are elements with the same number of protons but differ in the number of neutrons. The…

Q: The characteristic odor of decaying flesh is due to the presence of various compounds. One such…

A: Given data contains, Mass percent of carbon is 62.04%. Mass percent of hydrogen is 10.41%. Mass…

Q: Potassium bromide + Iron (III) oxide Potassium oxide + Iron (III) bromide REACTANTS PRODUCTS Element…

A:

Q: What coefficients would you need to balance the following equation, just put the coefficients in the…

A:

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.