How many moles of argon are in 40.1 g of argon?

Q: how much copper ion remains at equilibrium?

A:

Q: How many moles of ions are in 1.75 mol of K2SO4?

A: Introduction: The charge particles present on the elements are known as ions.

Q: Calculate the coulomb energy for the following three nuclei using the semi-empirical mass formula.…

A: Introduction The semi-empirical mass formula is used to calculate an atomic nucleus' mass and other…

Q: How many moles of sodium hypochlorite can be prepared from 32.5 g of NaOH?

A: Moles of Sodium hydroxide equals moles of Sodium

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: Which is the highest boiling point of 1-Octene or 1-nonene? Why?

A: Boiling points of alkenes depends on more molecular mass (chain length). The more intermolecular…

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 empirical formula for a compound that is 26.56% potassium, 35.41% chromium, and 38.03%…

A: A compound's empirical formula communicates a ratio between the numbers of atoms of various elements…

Q: The specific gravity of the following compounds are: Ether – 0.715; Bromine - 3.016; Glycerin -…

A: Specific gravity: Relative density is the ratio of the density of any substance to that of the water…

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: If our alloy has a composition of 90% Sn and has a temperature of 100C, determine: a) What…

A: A phase diagram is a graph that depicts a substance's thermodynamic state at various pressures and…

Q: If one compound has the formula C5H10 and another has the formula C4H10, are the two compounds…

A: Isomers are molecules or compounds with identical molecular formulas which means they have empirical…

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: What mass of gallium oxide, Ga2O3, can be prepared from 29.0 g of gallium metal? The equation for…

A: A chemical reaction where there is loss of electrons or gain of oxygen and resulting in the increase…

Q: How many moles of tungsten(VI) oxide and hydrogen were required to produce the 5.00 g of tungsten?

A: Stoichiometry is a section of chemistry that involves using relationships between reactants and/or…

Q: If 4.00 L of ethyl alcohol at 18.0 ⁰C is exposed to a temperature of 25.0 ⁰C, what is the resulting…

A: Initial temparature of ethyl alcohol is T₁ = 18° C = (273 +18) K = 291 K rising the temparatute to…

Q: 5. A 0.8720 g sample consisting solely of sodium bromide and potassium bromide yields 1.505 g of…

A: NaBr is sodium bromide KBr is potassium bromide  AgBr is silver bromide Molecular weight, Na=23…

Q: Which do you think has a higher boiling point, pentane or neopentane (2,2-dimethylpropane)? Why?

A: The boiling point is the temperature at which the pressure of the liquid changes to the state of the…

Q: How many grams are in 0.250 moles of lithium carbonate ?  a) 12.225 b) 18.47 c) 18.5 d) 16.5

A: The molecular formulae of lithium carbonate are Li2CO3.

Q: To form S²⁻ ions from gaseous sulfur atoms requires 214 kJ/mol, but these ions exist in solids such…

A: The lattice energy is the amount of energy required in the formation of crystalline lattice of…

Q: A 75.0 g piece of Ag metal is heated to 80.0 C and dropped into 50.0 g of water at 23.2 ° C. The…

A: To find: Specific heat of silver

Q: What is the vapor pressure of a liquid?

A: As the liquid is heated at a particular (T) temperature, the molecules of water attains kinetic…

Q: Copper(II) acetate containing 6Cu is used to study brain tumors. This isotope has a half-life of…

A: Time elapsed = 63.5 hours Half-life of 64Cu = 12.7 hours

Q: What is the equivalent of 7 ppb in µg sol/L?

A: ppb means parts per billion.

Q: the vapor phase concentration in ppm(v)?

A: Vapour phase concentration is the amount of water vapor present in a unit volume of air, usually…

Q: Determine the molar mass of Mg(OH)₂. Provide an answer to two decimal places.

A: Molar mass is calculated with the help of atomic masses.

Q: Ethyl mercaptan is an odorous substance added to natural gas to make leaks easily detectable. A…

A: Given: Ethyl mercaptan is an odorous substance added to natural gas to make leaks easily detectable.…

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: What is ethidium bromide ?

A: Agarose gel electrophoresis is commonly used for the separation of nucleic acid molecules. It…

Q: How many oxygen atoms are in this molecular formula? 3H2 O

A: An atom is the smallest unit of any chemical element. They are made up of three particles namely…

Q: Define the mole, and calculate the molar mass of a compound from the molecular formula.

A: The mass of substance present in a sample of a given compound is divided upon the amount of…

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: Object A has a mass of 40g and a volume of 30mL and object B has a mass of 15 g and a volume of 20…

A: Ans 30. Density is the mass per volume measurement. The average object density refers to its total…

Q: water 4.18 ethyl alcohol 2.44 benzene 1.80 sulfuric acid 1.40 ased on the information in the table,…

A: INTRODUCTION One of water's most significant properties is that it takes a lot of energy to heat it.…

Q: The density of trifluoroacetic acid vapor was determined at 118.1 °C and 468.5 torr, and found to be…

A: In a chemical reaction, equilibrium is considered the state, where the rate of the forward reaction…

Q: the molecular formula

A:

Q: Which are the Trace Elements: Less than 0.01% of Total Atoms in the Body?

A: On Earth, 92 elements are found in their native state. Only 11 of these elements are present in…

Q: Balance the following equation, and tell how many moles of nickel will reactwith 9.81 mol of…

A: The balanced chemical equation is a chemical equation in which both sides of equation contains equal…

Q: How do you think fluorocitrate can be formed?

A: Fluorocitrate is the fluorinated carboxylate ion that is derived from citric acid by substitution of…

Q: How many kilojoules are released by the combustion of 17.0 g of C8H18?

A: Carbon is the key element fount in all organic molecules. carbon have 4 valency. Based on the carbon…

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: Use the following balanced equation for problems 1–5. Molar masses are given below. 2 As + 3 H2 2…

A:

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…

Q: If a liter of a cough syrup weighs 1285g, what is the specific gravity?

A: Specific gravity can be defined as the ratio of the substance's weight to the weight of the equal…