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

Q: Chemistry The boiling point of a group 4A binary hydrogen compound is CH4-162°C. SiH4- 112°C,…

A: Down the group molecular mass increases and size of atom increases.  Hence the van der Waals…

Q: What property does the separating funnel exploit for separation?  A. Size  b. miscibility  c.…

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Q: 1 H 1.008 3 Li 6.94 4 Be 9.012 11 12 Na Mg 22.990 24.305 Select one or more: O a. CCl4 O b. CO₂ O c.…

A: The concept behind to judge a molecule is polar or non-polar is draw their 3D structure and…

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Q: Which one of the following aqueous solutions will have the highest boiling point? 0.150 mol.kg-1…

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Q: 1.1.The lemon battery – a simple galvanic cell 1.2. Potassium iodide electrolysis – a simple…

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Q: The following initial rate data are for the reaction of UO₂+ with hydrogen ion in aqueous solution:…

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Q: Which of the following molecular geometries cannot have a trigonal bipyramidal electron group…

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Q: What is the name of the product when you reduce 1-hydroxy-2-hexanone with sodium borohydride (NaBH4)

A: we have to write the name of the product formed when  1-hydroxy-2-hexanone reacts with sodium…

Q: Use the images and symbols to determine the atomic number and mass number for each of these…

A: The given problems are based on the general properties of the elements.

Q: If 3.81 g of acetic acid (CH3COOH) reacts with 3.66 g of isopentyl alcohol (C5H120) to give 2.60 g…

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Q: The soda ash in your analysis was assumed to be pure Na2CO3. If some of the Na2CO3 is replaced by an…

A: Explanation :

Q: What is the Molarity of an HCL solution if 10.5 ml of ab0.150 M NaOH solution are needed to tritrate…

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Q: Determine the equilibrium potential of RHE (reversible hydrogen electrode) trhough Nernst eqaution…

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Q: 1. How many grams of Cu* are present in 3.96 grams of copper(1) bromide? grams Cu*. 2. How many…

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Q: A newly discovered element lenium (Le) was determined to belong to group 16. What would be the…

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Q: Which of the following alcohols will be oxidized by potassium permanganate to form a ketone?…

A: An oxidizing agent is a substance that causes oxidation by accepting electrons their four it gets…

Q: Electrons: 90Mo4- Neutrons: 138Ba ◆ + 106Pd2+ 142Nd

A: Atomic Number of Mo: 42 Atomic Number of Pd: 46 Atomic Number of Ba: 56 Atomic Number of Nd: 60 In…

Q: Calculate the average atomic mass of element X given the following isotopes and relative abundance.…

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Q: Which of the following best describes the quantization of energy in atoms? Select one: a. Electrons…

A: The quantization of energy first introduce by scientists Bohr. He tell us that energy gap between…

Q: On the basis of the chromatography results shown here: what is the percentage radiochemical purity…

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Q: Sulfur trioxide has no dipole moment (i.e. is not a polar molecule), but arsenic trifluoride has a…

A: ->  A polar molecule is a molecule in which one end of molecule is slightly positive while the…

Q: se the standard reaction enthalpies given below to determine AH°rxn for the following reaction: 4…

A: Which one of the following options is correct

Q: H 1.008 3 Li 6.94 11 4 Be 9.012 12 Na Mg 22.990 24.305 5 6 13 8 NO B C F 10.81 12.011 14.007 15.999…

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Q: A 125.0-mL sample of a solution that is 2.7×10−3M in AgNO3 is mixed with a 230.0-mL sample of a…

A: The balanced equilibrium reaction for the formation of Ag(CN)2-(aq) is: Ag+(aq) + 2CN-(aq) →…

Q: Will the equilibrium potential based on the reverse hydrogen electrode be 1.067 V or the same as the…

A: Reversible hydrogen electrode and standard hydrogen electrode.

Q: Consider the solubility of silver sulfide, Ag2S, is 3.12 × 10-12 mg/L. a. Determine the Ksp of…

A: Here we have to determine the Ksp of Ag2S and overall equilibrium constant K when Ag2S will be…

Q: Which of the following will determine if an atom/ion is paramagnetic? Select one: O a. me O b. Ems O…

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Q: Consider the electrochemical cell diagram shown below. As you observe the reaction in the cell, you…

A: ANSWER: Option (3) Sulfate ions are flowing through the salt bridge to the manganese solution.

Q: 4. Determine the number of H atoms in 8.50 g of water.

A: As per your indication we solved the 4th question. Please find the below attachment

Q: N ・OMe 20 2 3 H Me H MeO 2 Me N 5

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Q: In a vessel, whose volume is 1L, there is a gas, which is a compound of oxygen and nitrogen. The…

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Q: A newly discovered pain reliever has an elimination half-life (t1/2) of 2.5 hours. What percentage…

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Q: 2. Write in the products. a) b) c) CH,CH,&C.HS 1. BH, 2. H₂O₂, OH PCC NaBH₂

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Q: How many electron groups are present in BrO3 and what is its electron group geometry? Select one: O…

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Q: The reaction of nitrogen dioxide with fluorine 2NO2+ F2 → 2NO₂F is first order in NO₂ and first…

A: The detailed solution is provided below.

Q: Which of the following molecular geometries cannot have a trigonal bipyramidal electron group…

A: VSEPR theory: The structure of a molecule can be determined by using the VSEPR theory. According to…

Q: For the decomposition of N2O4(g) to NO(g) (at standard state conditions), what is the temperature…

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Q: OH us. 8 CI + (8) a. Draw and name the major product(s) (8) for the reaction shown above. (Hint: If…

A: The reaction is the Friedal crafts acylation reaction.  The Acyl group is attached to the…

Q: Q1. The vapor pressure of tungsten can be obtained by the following equation LogP (atm) =…

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Q: A metallic cube has a side length of 50.00 mm. It is composed of 33.49% of metal A and 46.95% of…

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Q: Give an acceptable name for each carboxylic acid. (CH3), CHCH,CH,CH2CH,CH2COOH a. b. OH

A: We follow rules assigned by IUPAC to name an organic molecule.  Some of the rules are given below:

Q: question 21 The solubility product, Ksp, for Fe(OH)3 is 1.6 × 10–39. What is the solubility of…

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Q: What are the two chair conformers for this molecule and which one is more favorable?

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Q: Experiment 3 Molar Mass of a Copper Compound 3. A 2.1463 g sample of a silver compound contains…

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Q: Which of the statements concerning chemical bonds is FALSE? Select one: O a. The sharing of…

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Q: Question 59 CI OH (8) Draw and name the major product(s) (8) for the reaction shown above. (Hint: If…

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Q: a. How many molecules of carbon dioxide are present in 3.99 moles of this compound? molecules b. How…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Consider a CH4 storage tank with a volume of 49.0 L. When empty, the tank has a mass of 55.85 kg,…

A: Given data :

Q: 1 Select one: H 1.008 3 6.94 11 O a. CO₂ O b. MgCl2 O c. C6H12O6 d. Al2(SO4)3 4 Be 9.012 5 12 6 BC…

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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.