How many collisions does single Ar atom make in 1.0 s when the temperature is 25 degrees Celsius and the pressure is (i) 10 atm, (ii) 1.0 atm? (Ar: M= 39.95×10^-3 kg/mol

Q: A principal shell with a value of n=3 would contain s,p,d, and f orbitals true or false

A: A principal shell is indicated by the principal quantum number.

Q: Typical frequencies for several types of electromagnetic radiation are given below. Calculate the…

A: The waves of electromagnetic filed causes electromagnetic radiations. These waves propagate through…

Q: If Km = 2 mM, and Vo = 100 umol.s when [S] = 2 mM, what is the velocity Vo for the reaction when [S]…

A: Given Values: [S] = 2 mm, Km = 2 mM, Vo=100 micro mol/sec [S] = 18 mM what will be Vo value?

Q: How many grams of calcium chloride (CaCl2; molecular weight = 111 g mole−1) would you dissolve in…

A: Molar concentration is a measure of the concentration of solute in the solution per unit volume.…

Q: Elemental analysis of a compound with molar mass 342.3 g/mol gives the following mass percent…

A: Given Percentage of C= 42.11 %  Percentage of H=6.48 %  Percentage of O=51.41% To Calculate:…

Q: Which of the following substances will have the greatest lattice energy? MgS NaF MgO CaO

A: Lattice energy can be defined as the energy required to convert one mole of an ionic solid into…

Q: Describe the process of calculating the Lattice Energies?

A: Lattice energies is defined as the energy required to separate a mole of an ionic solid into gaseous…

Q: The following reaction plays a key role in the destruction of ozone in the atmosphere: Cl(g)+ O3…

A: Entropy is a measure of the randomness of a system. It the measure of a system's energy per unit…

Q: How many kilojoules are released by freezing 2.5 mol of H2O?

A: Enthalpy of freezing (∆Hfree) is used to calculate energy needed to release when liquid becomes…

Q: Calculate these masses.

A: A large amount of unspecified size is known as mass. It is denoted as m.  The amount of space an…

Q: What is the approximate concentration of the solution in mol\kg, if 1 mol of solute particles raises…

A: Boiling point elevation describes the phenomenon that the boiling point of a liquid will be higher…

Q: What is 80.1ml in liquid volume?

A: The volume of an object is defined as the 3-D (three-dimensional space) present within a closed…

Q: The magnesium electron spectrum has a line at 266.8 nm. Does it have a greater speed in a vacuum (an…

A: Electromagnetic radiation is a form of energy also known as light. Light travels at speed of 3,00,…

Q: How many grams of calcium chloride (CaCl2; molecular weight = 111 g mole−1) would you dissolve in…

A: A chemical solution is made up of a solute and solvent such as the salt solution containing salt as…

Q: How many electrons must a nitrogen atom, Z = 7, gain to attain a noble gas configuration?

A: According to the Bohr concept of atomic structure, every atom gain or lose one or more electrons to…

Q: For Be-10, find the: a.) mase defect (in grams)  b.) binding energy in kilojoules per mole. mass…

A: The difference between the assumed mass of the nucleus of the atom and the actual mass of the atom's…

Q: How many kilocalories are needed to vaporize 5.8 mol of Br2?

A: Bromine is a dark reddish-brown fuming liquid with a pungent odor. Denser than water and soluble in…

Q: What is the mass in grams of 6.022 * 1023 O atoms of mass 16.00 amu?

A: The mole concept is a convenient method of expressing the amount of a substance. Any measurement can…

Q: Assume we have water contained in a beaker. How many types of forces are there in this setup at…

A: The shape of the water molecule is V shape. It consists of two hydrogen atoms and an oxygen atom. A…

Q: Write the electron configurations of Co, Co2+ , and Co3+.

A: The electronic configuration of an element is a symbolic notation.

Q: The atomic emission spectrum for a particular element includes blue-violet light with wavelength…

A: The emission spectrum of a chemical element is the spectrum of frequencies of electromagnetic…

Q: Which of the following components of Km is largest in magnitude? k2 O k-1 O k1 O k-2

A: Enzyme Kinetics studies enable us to understand the rate of formation of products and also reaction…

Q: What is the difference between an a particle and a helium atom?

A: Alpha particles - Alpha particles consist of two protons and to neutrons bound together into a…

Q: föllowing would dispersion forces be the most important factor in determining physical properties in…

A: The London dispersion forces are defined as the weakest existing intermolecular forces. It is a…

Q: Write balanced nuclear equations for the following:(a) β⁻ decay of sodium-26(b) β⁻ decay of…

A: Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation.…

Q: When 0.5 mol of a certain ionic substance is dissolved in 1.0 kg of water, the freezing point of the…

A: The physical properties (freezing and boiling point) of a solvent caries n addition of solute. The…

Q: A sample of 8.00 mol of gas in a 10.00 L container is at 45.0 °C. What is the pressure (in atm) of…

A: Moles of the gas (n) = 8 mol Volume of the container (V) = 10 L Temperature (T) = 45 + 273 = 318 K…

Q: At room temperature, substance 1 is a gas while substance 2 is a liquid. Which of the following is…

A: A state of matter is defined as one of the distinct forms that various phases of matter take on. The…

Q: There are three different types of spectroscopic analyses which are utilised in atomic spectroscopy.…

A: The interaction between electromagnetic radiation (light) and matter as a function of the radiations…

Q: Ferrous sulfate is one dietary supplement used to treat iron-deficiency anemia. What are the…

A: Ferrous sulfate is an essential supplement, which is required by our body. It plays important role…

Q: How many grams of glucose (C6H2O6 molecular mass =180daltons) would be present in one liter of a 1M…

A: The concentration of a solution is expressed in molarity. Molarity is defined as the number of moles…

Q: determine the density of a metal that has a mass of 2.17g and a volume of 0.35 cm^3

A: The unit of density is gm/cm3 .

Q: what subatomic particle is present in the nucleus of an atom?

A: The subatomic particles are present inside the atom.   Each subatomic particle has a unique charge…

Q: Write the nuclear equation for the beta decay of Bi-214.

A: The bismuth-214 atom has an atomic number of 83 and an atomic mass of 214. Most of the known bismuth…

Q: What is the empirical formula of a compound that contains 72.0% carbon, 12.0% hydrogen and 16.0%…

A: Empirical formula  It is the formula of a compound in which the exact number of each atom is not…

Q: Write the nuclear equation for the alpha decay of Po-214.

A: The radioactive decay process is defined as the loss of energy by an unstable nucleus via emitting…

Q: The k of water is 1.86 kg °C/mol, approximately 4x the value of k,. If you attempted to freeze your…

A: Freezing point depression is a colligative property and it is noticed in solution when solute…

Q: Write the nuclear equation for the positron decay of C-11.

A: C-11 is a radioisotope of carbon. C-11 is an unstable atom that disintegrates by emitting radiation.…

Q: the molecular formula

A:

Q: hw(v +1/2)- hwxe(v+1/2)-E Using the equation for the energy levels of a morse operator A.) Derive an…

A: A-

Q: How many spectral lines do you expect to see in a IR spectrum for NO2 and CO2? Considering…

A: IR spectroscopy is a type of spectroscopy that detects the light absorption by a compound. This…

Q: How is Kw defined, and what is its numerical value at 25 °C (298 K)?

A: As we know that the pure water is a considered as weak electrolyte that is  H2O ⇔H++ OH-

Q: if tomato juice has a pH of 3, how many more H+ ions are present in lemon juice with a pH of 4?

A: The alkalinity or the acidity of a solution could be found by measuring the pH of the solution. The…

Q: The vapor pressure of component Cis 272 torr, and that of component E is 176 torr a vith x 0.200 has…

A: All the values are given in the question so just put the values in required formula

Q: With the Boltzmann distribution, the population of electrons that correspond to the en- ergy levels…

A: Asked : Boltzmann distribution doesn't give population of electrons corresponding to energy levels

Q: What is the mass number of an ion with 107 electrons, 157 neutrons, and a +1 charge?

A: Mass number  It is defined as total sum of protons and neutrons in an atomic nucleus. The protons…