Get the number of particles of the following substances. а. Atoms of boron in 22.2 g boron, B b. Molecule of iodine in 2/3 mole iodine, I2

Q: According to VSEPR theory , in which fashion will the bonds and lone pairs of electrons be arranged ...

A: Answer: In this question we have to find out how many single bonds the central atom is forming and h...

Q: aqueous solutions will have a pH of 2.00 at 25 °C? (Kw = 1.01 × 10–14) 0.020 M HNO3

A: As we know,  Acidic solution has pH less than 7. Basic solution has pH greater than 7 . pH = -log(H+...

Q: Determine if the elements in the following compounds are metals or non- metals. Describe the type of...

A: An ionic bod is formed due to transfer of electrons from one atom to another atom. Atom which donate...

Q: Consider the reaction sequence shown in the box. The intermediate of the reaction sequence is an eno...

A: A Gilman reagent is a lithium and copper (diorganocopper) reagent compound, R2CuLi.

Q: etermined by how fast things come how fast they fall apart"?

A:

Q: engagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator%=as hio... The Met at Fashio... AZ...

A:

Q: Effect of Common Ions on the Solubility of Ca(OH)2 Answer the concentrations and solubility in 3 sig...

A: Given:  Concentration of the standardized HCl solution = 0.198 M

Q: Draw the major organic product of the reaction. Do not include any side products.

A: To determine the major product.,

Q: . When a 0.2565-g sample of impure potassium chloride was treated with an excess of 0.2912 g of AgCl...

A:

Q: Determine the concentration of H+ in each solution at 25°C. A solution with pH = 1.0. [H*] : M A sol...

A: Given,  pH  of solution = 1.0 [H^+] =?   

Q: 7. Pick two of the following compounds, and provide a synthetic scheme to produce the following comp...

A:

Q: Dr. Stone and Princess Bubble gum wanted to run an experiment to determine at what volume they will ...

A: Given: Titration of CF3COOH with a pKa of 0.52 with 0.1 M NaOH.  

Q: 8. A 2.856-g sample of limestone was analyzed for Fe, Ca, and

A: A 2.856-g sample of limestone was analyzed for Fe, Ca, and Mg.

Q: -0.5% glucose . 0.25% glucose 1. 0.1% glucose 5. 0.05% glucose 6. Unknown roximately how much carhoh...

A:

Q: 1) 80mL of NaOH is dissolved in 100mL C2H5OH. How much are the mass percentage, volume percentage, a...

A: Solution                       Given that 80ml of NaOH is dissolved in 100ml of C2H5OH Find the mas...

Q: A gas releases 24.9 J of heat upon rotating in a tanker. It created 13.0 J amount of work. What is t...

A:

Q: An ideal gas is compressed isothermally from 2.00atm to 90.0atm. At 40°C, three moles reacted with e...

A: Given: An ideal gas is compressed isothermally from 2.00atm to 90.0atm. At 40°C, three moles reacted...

Q: buffer solution contains 0.273 M hydrocyanic acid and 0.383 M sodium cyanide. If 0.0410 moles of hyd...

A: Given: Concentration of HCN = 0.273 M Concentration of NaCN = 0.383 M Volume of buffer solution = 22...

Q: Which of the following does NOT describe Arrhenius acids and bases? O a. It is only applicable for a...

A:

Q: How much heat is  ____________  evolved/absorbed when 2.22 x 102 moles of Br2 are consumed ?  N2   ...

A: Given reaction is : N2 + 3Br2 --------> 2NBr3 + 44.0 KJ  How much heat evolved/absorbed when 2.22...

Q: In this experiment, you are asked to combine 5.0 mL of 0.10 M Fe(NO3)3 with 1.0 mL of 0.0020 M KSCN ...

A: In this mixture of solutions , no precipitate would form as per solubility rules, so all ions would ...

Q: he compound given below is a H Me Me Me H H. (Hirsutene) a) sesterterpene :) sesquiterpene (b) monot...

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Q: ОН HO HO

A:

Q: On hot days, you may have noticed that potato chip bags seem to “inflate”, even though they have not...

A: Given,  Initial volume of bag (say V1) = 145 mL  Initial temperature (say T1) = 23 0C  Final tempera...

Q: WHAT IS THE NUCLEAR MASS AND THE NUCLEAR DENSITY OF THORIUM IN PERIODIC TABLE

A: We have to write the Nuclear Mass and Nuclear Density of Thorium in periodic table.

Q: How much heat is evolved when 8.89x10° g of ammonia is produced according to the following equation?...

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Q: Why is cycloprop-2-enone more polar than cyclopropanone?

A:   Aromaticity : Huckel's rule: Any organic compound to obey aromatic character  1. It should be cyc...

Q: For a 0.9% m/v of saline solution at 25C, having a density of 1.045 g/mL, determine the freezing poi...

A: Colligative properties are the properties that depends only number of particles but not on the natur...

Q: Calculate the pH of a vinegar solution with an acetic acid HC2H302 concentration of 0.75 M.

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Q: 4. 3.2 g of non-volatile, nonelectrolyte solute is dissolved in 70 g of water. The resulting vapor p...

A: colligative properties depend upon the number of particles.

Q: VSEPR theory predicts which arrangement of bonds and lone pairs of electrons about the central Kr at...

A: According to VSEPR theory, geometry of a molecule is based on repulsions between bond pairs and lone...

Q: Which of the following is not an example of heterogeneous catalysis?     a) 2O3(g) → 3O2(g) has a ca...

A: Catalyst can be defined as the species that increases the speed of chemical reaction without getting...

Q: What is another factor that can influence fractional distillation’s success other than the number of...

A: Distillation process involving conversion of liquid into vapours that subsequently condensed back to...

Q: Below are two reactions, and one will occur faster than the other. Ts.

A: Nucleophilic substitution biomolecular reaction (SN2): The bimolecular nucleophilic substitution rea...

Q: If 1.24 L of a gas is at standard temperature and pressure is compressed to 451 mL, what is the new ...

A: At constant temperature volume is indirectly proportional to pressure

Q: In the lab you will use ~0.6130g of KHP (potassium hydrogen phthalate) to titrate with your ~0.2M Na...

A: Given,  Mass of KHP (potassium hydrogen phthalate) = 0.6130 g  Molarity of NaOH = 0.200 M  What is t...

Q: me Me Me (41 (3) Me Me Me Please predict C signals and H signals including coupling patterns for thr...

A:

Q: The density of octane, C8H18C8⁢H18, is 0.703 g/mL0.703 g/mL. Calculate the number of moles of octane...

A: Given Data :  1.density of octane = 0.703 g/mL  2. Volume = 49.1 mL  Molar mass of octane = 114.23 g...

Q: Which of the following is FALSE about buffer capacity? a. Buffer capacity increases as the ratio of ...

A: Buffer  capacity  -  Is refer to the amount of acid or base that can be neutralized by buffer and pH...

Q: buffer solution contains 0.207 M CH3NH3Cl and 0.499 M CH3NH2 (methylamine). Determine the pH change ...

A:

Q: What is the order of reaction with respect to the concentration of F2? Use the given reaction rate b...

A: Answer: Order of reaction with respect to any reactant is equal to the power of its concentration te...

Q: What is the pH when: a. 0.15 mL of 1 M NaOH has been added to 30.0 mL of 0.10 M NH3? b.0.15 mL of ...

A: Given: Kb of NH3 = 1.8×10−5 Ka of NH3 = 5.55×10−10 pKb of NH3 = 4.75 pKa of NH3 = 9.25  

Q: An unknown weak acid was determined using its acid dissociation constant. Different concentrations o...

A: The data given is,  

Q: Calculate the % yield for problem number 9 if only 500.0 g of NBr3 are actually made from 525 g Br2 ...

A:

Q: Solid zinc hydroxide and solid aluminum hydroxide are in equilibrium with a solution containing 9.61...

A: Given,  Solid Zn(OH)2 and solid Al(OH)3 are in equilibrium with a solution containing 9.61 x 10-3 M ...

Q: A 2p orbital. A 2p* orbital. 2p* orbital. O 2p O 2s* orbital. А. В. С. D. Е. F. 0:0

A: Two atoms from the second period form a diatomic molecule. Match each listed molecular orbital label...

Q: Using the molecular orbital model, identify the correct (valence) electron configurations for the fo...

A: In this question, we have to identify the correct (valence) electron configurations for the given di...

Q: 2. FeS FeCl Precipitation 2HCI, -> (aq) 2 (aq) Neutralization Gas Production

A: Double displacement reaction: The reaction in which elements are exchange between two compounds are ...

Q: Reaction Data Time (s) [ClO) (mol/L) 0.12 x 10-3 8.49 x 10-6 0.96 x 10- 7.10 x 10-6 2.24 x 10-3 5.79...

A: The data given is,  

Q: Provide monomer components of this polymer

A:

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.