00 Complete the table below for calculating the molar mass of the ionic compound chromium(II) chloride. Mass of ion in Molar Number one mole of Formula mass of of ions chromium(II) ion chloride Cation Cr2+ %3D g/mol mol Anion CI %3D g/mol mol g/mol Molar mass chromium(II) chloride =

Q: A calibration curve of ZnCl2 conductivity (y-axis) vs concentration (mass percent, x-axis) is made.…

A: In the linear regression plot, the X-axis represents the mass percent of ZnCl2. The Y-axis…

Q: A pharmacist wants to use three lots of zinc oxide ointment containing, respectfully, 40%, 30%, and…

A:

Q: 9 4 6. 4Be + 2He→ O a. 1 On O b. 2 1H O c. 0 O d. 0 1H le 12 6C+.

A: Nuclear reaction follow law of conservation of charge and mass.

Q: NO2 F OH Na high dilution (?)

A: The reaction that is involved are.1. Nucleophile generation by Na.2. intra molecular nucleophilic…

Q: *** What amount (in mol) and what mass (in kg) of carbon dioxide are produced when 20 gallons…

A:

Q: 02

A: The reaction of benzaldehyde with oxygen is an oxidation reaction.

Q: a label on a bottle of cough syrup shows that the bottle contains 25 mg dextromethrophan (DTN)…

A:

Q: If you start with 135 mg of acetone, what mass of NaBH4 in mg do you need? To account for some of…

A:

Q: What is the connection of the manhanttan project and chemistry?

A: The Manhattan Project was a scientific and engineering effort to produce the first nuclear weapons…

Q: remove stains. The H₂O2 in the product can be titrated with the MnO4 under acidic conditions by the…

A: Given data for Q6 Reaction involved : 5H2O2 (aq) + 2MnO4- (aq) + 6H+ (aq) -------> 5O2 (g) +…

Q: Dr. Evil prescribed Austin 2.0 mL of 1:40 evil truth serum. However, Scotty ordered 1:100 evil truth…

A:

Q: two solvents A (d=0.859 g/mL) and B (d = 1.290 g/mL) are immiscible. When 12.0 mL of solution A is…

A: Density=1.0314g/ml

Q: AICI 3 CI (continued on back)

A: Step 1: Step 2: Step 3: Step 4:

Q: (iv) CI. COMMO (v) 2x (vi) CI OMe NaOMe NaOMe Jogos NH3 HⓇ (cat.) J (C5H8O4) K

A:

Q: What is the balanced equation for the complete combustion of bu- C₂H₁0? tane, Write out the complete…

A: As we know, Hydrocarbon compounds react with oxygen to form carbon dioxide & water and this type…

Q: Ascorbic acid, H₂C6H6O6, is a diprotic acid usually known as vitamin C. For this acid, pKa1 is 4.10…

A: The objective of the question is a) To calculate the molar concentration of ascorbic acid.b) The pH…

Q: C. d. → CO2 + =- л ОН

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: An oil refinery heats crude oil to high temperatures in order to separat present like propane and…

A: distillation is a separation method that is used to separate different substances in a mixture based…

Q: CrO3 b)

A: CrO3 is an oxidising agent.

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Q: On a balance mass an amount of potassium hydrogen phthalate (KHP) needed to neutralize approximately…

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Q: Whilst working in the pharmacy aseptic unit you are asked to prepare 5 litres of a solution…

A: Molarity will be constant through out the solution any time.

Q: 5) King Krator the Merciless has called on Pogo, a humble goldsmith, to make a crown for the King.…

A: The mass of gold given by King Krator to gold Smith Pogo is ---- 14 oz. The density of gold=19.3…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.