How many atoms of oxygen are in 12.99 g of nickel(II) nitrate? 2.569 x 1023 1.284 x 1023 1.944 x 1023 2.141 x 1023 1.308 x 1023

Q: molarity of Ca +2 in a solution is 12.0 ppm. calculate molarity of Ca +2 (aq)

A:

Q: 4. The density of aluminum is 2.7 g/cu. cm. What is the weight in pounds of a Solid sphere of…

A: Given that, the density of aluminum is d = 2.7 g/cm3. The radius of the solid sphere of Aluminum is…

Q: Consider the following reaction. AB + C → AC + B AH = +65 kJ, Ea(rev) = 34 kJ Draw and label a…

A: We are given the enthalpy of a reaction and since it is positive, it will be an endothermic…

Q: 3.2. What is the oxidation number of the metal ion in each of the following complexes? (a)…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: Select the correct name for the compound. F CI Br The name is: 1-fluoro-2-bromo-4-chlorobenzene…

A: 2nd choice is correct 2-bromo-4-chloro-1-fluorobenzene     Refer the below attached image for…

Q: THANK YOU! may you PLEASE do the other ones as well?

A:

Q: How many ¹H NMR signals does 2-chloro-3-methyl-2-butene exhibit? Assume both allylic methyl show as…

A:

Q: Use the following atomic masses (in g/mol): Ca = 40.08; C = 12.01; O = 16; Na = 23; Cl = 35.45   1.)…

A: A question based on mole concept that is to be accomplished.

Q: 15.0 mL of 4.0 M HCI is added to 85.0 mL of water. What is the final concentration of the acid? [?]…

A:

Q: A company is looking for the optimum conditions to produce hydrogen gas using the reaction between…

A: Reaction between Mg and sulphuric acid.

Q: Which is a structural isomer of 3-ethyl-3-methylhexane? O2,7-dimethyloctane…

A: Here we are required to find the structural isomer of the given compound

Q: using the starting material on the left and another reagent or solvent synthesize the molecule on…

A: Detail synthetic pathway is given below

Q: Br₂ + S2-2Br* + S In the above reaction, the oxidation state of sulfur changes from How many…

A: Given-> Br2 + S2- -------> 2Br- + S

Q: 1.1eq. LDA, - 78°C 24 25

A:

Q: An aqueous solution at 25 °C has a pH of 5.8. Calculate the pOH. Be sure your answer has the correct…

A: given pH = 5.8, we know that pH + pOH = 14

Q: Using the following chemical equation and data: 3A + B + 2C --> D + 2E Experiment Initial [A]…

A:

Q: The formula for the oxide of a metal is La203. The formula for the chloride of the same metal O LaCl…

A:

Q: C3⁢H6O) to create a solution where the mole fraction of chloroform, ?chloroform,χchloroform, is…

A:

Q: Modify the molecule to show the product of the given reaction. Add or remove bonds or atoms as…

A: In this question, we will draw the structure of the product after reduction of aldehyde group by H2…

Q: 1,3-dimethylcyclohexane can exist in a chair conformation with its substituents in the equatorial…

A: Conformational isomers: The conformational isomers are formed by the rotation of a carbon-carbon…

Q: What is the molarity of 100 mL of a 2.25% H2O2 solution?

A:

Q: 3.3. Study the following pairs of compounds, in each case state the type of isomerism exhibited by…

A:

Q: Vinylcyclohexane reacts with three different conditions to give three different products. Draw the…

A: -> When alkene reacts with acid (H2SO4) then carbocation formed and addition of H2O give alcohol…

Q: Describe how the process of drawing Lewis DO Structure

A: Process of drawing Lewis DO Structure is described below; 1) first of all, find the total valence…

Q: Thomson also experimented with shining ultraviolet light at metal electrodes, such as zinc, to…

A: To calculate the maximum wavelength of light that can be used to eject an electron from zinc given…

Q: 9. Given that Agl would precipitate first than AgCl in a solution containing equimolar…

A:

Q: Which structures represent 2-methylbutane (C₂H₁2)? I H₂C CH₂ CH₂ Premier te H₂C CH, H₂C CH₂ CH, H₂C…

A:

Q: Examine the diagram below 80 60 40 reactants 20 products 0 Reaction Progress c. What is the change…

A:

Q: 9. Element number 120 has been discovered! Using periodic tables on the Internet, tell us some of…

A:

Q: Calculate the number of moles in 10.0 grams of BaF 2

A:

Q: The chemical formula for hexane is C6H14. How many different isomers does a hexane have? Note:…

A: The compounds with the same molecular formula but different bond connectivity are structural…

Q: Reaction 2: CO₂ (g) + H₂(g) (A)cooling the reaction: (B) adding more H2 into the reaction:…

A:

Q: Using the following chemical equation and data: 3A + B + 2C --> D + 2E Experiment Initial [A]…

A: Given reaction: 3A + B + 2C → D + 2E We have to find the initial rate of reaction if the initial…

Q: 2NH4+ (aq) + HCO3- (aq) The reaction is first order with respect to urea, and first order overall…

A: Since you have asked a question with multiple sub-parts, as per our company guidelines we are…

Q: Ideal Stoichiometry Percent Yield 1. Aluminum reacts with excess Copper (II) Sulfate. Al (s) + CuSO,…

A:

Q: n analytical chemist is titrating 234.9 mL of a 0.5100M solution of trimethylamine ((CH3)N) with a…

A:

Q: Phosphoric acid (H₂PO4) is a polyprotic acid. Write balanced chemical equations for the sequence of…

A: Acid is substance which release hydrogen ions when dissolved in water. H3PO4 is polyprotic acid.

Q: 3. Write curved arrows for both directions of the autoionization of water (shown below). : 0-H + H H…

A:

Q: The following data were obtained for this chemical reaction: A + B → products Initial A Initial B…

A:

Q: □ 2. Products purchased from grocery stores are dated and need to be used within a certain amount of…

A: Decreasing the  storage temperature helps to slow the spoilage of food products, because it will…

Q: A 10.0-gram 2-hydroxybenzoic acid was reacted with 36.0 g of ethanoic anhydride. How much ethanoic…

A:

Q: The reaction A → C + D is carried out at a particular temperature. As the reaction proceeds the…

A: We are given time and concentration of reactant at that time. We need to find the order of the…

Q: Water has a heat of fusion of 6 kJ/mol. How much heat is given off when 2.5 mol of water freezes?

A:

Q: H3C H CH3 H3C H C

A: Newman projection corresponding to the wedge/slash drawing

Q: What is the relationship E -CH3 O same compound O isomers unrelated

A:

Q: PROBLEM: At 25°C (298 K), the reduction of copper(1) oxide is ΔΗ = 58.1 kJ nonspontaneous AG = 8.9…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: Consider the balanced equation representing a reaction occurring in an electrolytic cell: 2NaCl →…

A:

Q: Use Lewis dot structures for each element to draw the structural formula for phosphorus trichloride,…

A:

Q: Consider structure A below. In box (i), draw a functional isomer of A. In box (ii), draw a skeletal…

A: Isomers have same chemical formula but different structural formula or arrangement of atoms in…

Q: Question 29 Calculate the mass, in grams, of the water produced by dehydration synthesis of 3 moles…

A: Lysozyme is a naturally occuring enzyme, consists of 129 amino acids .We have to calculate the…

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.