How many moles are in 72.0 grams of RbF?

Q: Standard Reduction (Electrode) Potentials at 25 °C Half-Cell Reaction E° (volts) Fe(CN)6 (aq) + e.…

A: We will calculate ∆G° for the given reaction

Q: Determine the number of atoms in 39.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A:

Q: Imagine the main chain of a protein bends back on itself, so that two amino acid residues R₁ and R₂…

A: Amino acids are the building blocks of proteins. They contain an amino group, a carboxyl group, and…

Q: What is the concentration of sodium ions in 0.220 M Na,CO,?

A: The compound given is Na2CO3 with concentration = 0.220 M Since the compound Na2CO3 is completely…

Q: Consider the following reaction where K. = 1.20x10-2 at 500 K: PCI5 (g) PCI3 (g) + Cl2 (g) A…

A: Q = reaction constant = [product]/[reactant]  For equilibrium, Q = Kc

Q: Determine the number of atoms in 30.0 g of S.

A: The given mass of S is 30.0 g The molar mass of S is 32 g The conversion of mass to moles can be…

Q: When iron rusts in air, iron (III) oxide is produced. How many moles of oxygen react with 2.4 moles…

A: Moles of oxygen calculated as follows

Q: Can you summary between your 2 previous answers which one is correct?

A: NO has an unpaired electron in its 2π* orbital, which makes it more prone to accepting electron…

Q: Why is this the answer

A: Given information:Work function of selenium = 5.8 eVWavelength of light = 220 nm

Q: What is the mass percentage of O in C,H,O,? 42.051 % C 8. 9. +/- x 100 3. 2. 4. 7,

A: Given: C3H8O2

Q: Identify the conjugate acid in the reaction NH, + H,0 = NH,* + OH (AKS 5g)

A:

Q: What is the activation energy of a reaction? Select the single best answer. The energy required for…

A: The progress of a reaction can be represented by the reaction coordinate diagram. In a reaction…

Q: a) What is the significance of the point of intersection between the KCl and KNO, curves in terms of…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: What is the mass percentage of C in morphine, C1,H19NO,?

A: The molar mass of morphine is 285.34 g⋅mol−1.

Q: What is the bond enthalpy for HF?

A: Given : reactions and their enthalpy change.

Q: Why is this the answer

A: Atomic number of Magnesium is 12. It has 12 total 12 electrons and its electronic configuration of…

Q: What volume would 20.0 moles of sulfur dioxide occupy at 75.3 °C with a pressure of 2.84 atm?

A:

Q: How many mL of 0.300 M NaCl solution are required to produce 0.110 moles of NaCI?

A: Given : concentration of NaCl = 0.3 M And moles of NaCl to produce = 0.110 mol

Q: The following compound is: alcohol ether aldehyde ketone ester

A: The given compound is ether. Ethers can be thought of as organic derivatives of water (H-O-H) in…

Q: Which hydrogen atom in the molecule shown below will be most readily abstracted by a bromine radical…

A: We have to find the H atom that will be most readily abstracted by a bromine radical to produce a…

Q: A classic chemistry class demonstration is the burning of magnesium ribbon with a Bunsen burner. In…

A:

Q: 15. A flask is filled with 0.124 moles of A and allowed to react to form B according to the reaction…

A: Solution:      The rate of chemical reaction is defined as the change in concentration of reactants…

Q: Determine the molar mass of nickel(II) sulfate hexahydrate.

A: The molecular formula of nickel (II) sulfate hexahydrate is [Ni(H2O)6]SO4 and the molar mass of Ni,…

Q: How many moles of calcium atoms do you have if you have 4.69 x 10 atoms of calcium. (The mass of one…

A: Given, number of atoms = 4.69*1021atoms

Q: The process of iron combining with oxygen to form rust is considered a chemical change because rust…

A: Rusting It is an oxidation reaction. The iron reacts with water and oxygen to form hydrated…

Q: What is the mass percentage of C in CH;CH,OH? 52.144 % 3.

A: The given question is based on the knowledge of the determination of the empirical formula of the…

Q: How many moles of HCI are there in 75.0 mL of 0.420 M HCI?

A:

Q: What is the mass percentage of C in CH,CH,OH?

A:

Q: Calculate the mass, in grams, of 762 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g). 7.07 x…

A: Given : Number of atoms = 762 And atomic mass of Fe = 55.85 g/mol