Calculate the mass of 0.5 moles of (NH4)3ASO4.

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

A: If a molecule or atom contain unpaired electron then it is termed as paramagnetic.

Q: Choose the correct molecular formula for the following stick structure:

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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: Assuming the octet rule is obeyed, how many covalent bonds will a carbon atom (Z = 6) form to give a…

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Q: Phosphocreatine is used as a source of ATP storage in many muscle cells. Below is a reaction of the…

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Q: Label each structure below as chiral or achiral and give your reason W B C D

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Q: Why does oxalic acid dihydrate consume more base (0.094 N NaOH, consumed value 33.4 mL) at the time…

A: Oxalic acid is a dibasic weak acid and NaOH is a strong base. But oxalic acid is stronger acid than…

Q: Question 5 If you react 6.7g of iron oxide with 4.5g of aluminum, what is the theoretical yield of…

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Q: References) What is the boiling point of a solution composed of 17.0 g of urea, (NH₂), CO, in 0.600…

A: Given data, Mass of urea = 17.0 g Mass of water = 0.600 kg Kb for water = 0.5121 °C/m Boiling point…

Q: H 1.008 3 4 Li Be 6.94 9.012 7 8 10 C N 0 F 12.011 14.007 15.999 14 15 16 18.998 17 Ne 20.180 18 12…

A: In this question, we will check which ions have odd number of electrons in 3d orbitals.  Even number…

Q: The reaction Cl2(g) + F2(g) ⇌ 2ClF(g) has Kc = 1.0 ×109 at a certain temperature. If 1.0 mol Cl2…

A: we have to select the correct statement for the given equilibrium reaction

Q: Which of the following compounds is/are polar? You may choose one or more compounds. If there are…

A: Polar covalent bond: The covalent bond is formed by the sharing of electrons between the atoms. If…

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

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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: Which of the following compounds is/are polar? You may choose one or more compounds. If there are…

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Q: Identify and balance the half-equations in the following unbalanced equation in an acid solution:…

A: Given : reaction

Q: transparent material. The addition of metal oxides alters the color of the resulting glass.…

A: We are given with 3 statements. And we have to distinguish between pure substance and homogeneous…

Q: Fill the blank with the correct bond order calculated using MO theory. N₂2+ has a bond order of 48…

A: Answer:- This question is answered by using the simple concept of molecular orbital theory in which…

Q: Question 52 The reaction 2HCl(g) ⇌ H2(g) + Cl2(g) has Kc = 3.2 × 10−34 at 25 °C. If the reaction…

A: Recall the given reaction,                     2 HCl g  ↔  H2 g  +  Cl2 g                    Kc =…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: Given :-  Molarity of NaOH = 0.1795 M = 0.1795 mol/L  Volume of NaOH = 16.73 mL = 0.01673 L  Volume…

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

A: A question based on molecules that is to be accomplished.

Q: After dissolving NaOH in water, the final concentration of OH is 1.27x10-4. What is the pOH of this…

A: Given : [ OH-] = 1.27 × 10-4  We know pOH = -log [ OH-]

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

A: Given, A compound consist of oxygen (O) and nitrogen (N). Pressure (P) = 31.7 kPa = 0.313 atm Volume…

Q: Which of the following is TRUE regarding any nonmetal atom? Select one: O a. It has unpaired…

A: Non metal atom are present in the right side of the periodic table.

Q: Question 26 Consider the electrochemical cell diagram shown below. As you observe the reaction in…

A: A question based on electrochemiocal cell that is to be accomplished.

Q: A solution of NaCl(aq)NaCl(aq) is added slowly to a solution of lead nitrate,…

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Q: 2,2-dibromopropane has at least one stereocentre.   true or false?

A: Given is,  2,2-dibromopropane has atleast one stereo- center. Find it has stereo center or not? Or…

Q: Consider the mechanism. Step 1: Step 2: Overall: A B+C C+D E - equilibrium slow A+DB+E Determine the…

A: Given - Step-1.          A <-> B + C (equilibrium) Step-2.           C + D ->  E (slow)…

Q: • Glass is formed by heating sand (silica) with sodium carbonate or calcium carbonate. The molten…

A: Pure substances consist of only one type of constituent particles that can be either elements or…

Q: 1 H 1.008 3 Li 6.94 11 12 Na Mg 22.990 24.305 19 4 Be 9.012 20 21 22 K Ca Sc Ti V 39.098 40.078…

A: Octet Rule :

Q: The decomposition of nitrous oxide at 565 °C N₂O(g) → N₂ (9)+ ½ O₂(g) is second order in N₂O with a…

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Q: Complete the molecular orbital diagram below for F₂2- (for F, Z = 9) by filling in the electrons in…

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Q: Suppose two elements, X and Y, reacted to one another to form XY. If X used four orbitals and made…

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Q: , Consider the unbalanced reaction below, which occurs in an acidic aqueous solution. MnO4 + 1 Ⓡ1₂ +…

A: Given -> MnO4- + I- ----> I2 + Mn2+  -> oxidation is process in which oxidation state of…

Q: a. Label with asterisks (*) all of the stereocentres in the molecule shown above. b. How many…

A: a.) The IUPAC name of the structure is 2-methylcyclohexanol. it has 2 chiral centers.

Q: ( Consider a galvanic cell involving tin(II) and iron (II) and the corresponding Sn and Fe…

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Q: What is the thermodynamic (1,4-) product of the following reaction? CI. DCI D = D

A: In electrophilic addition reaction, 1,4 and 1,2 addition products are found. At low temperature 1,2…

Q: An aqueous potassium carbonate solution is made by dissolving 6.796.79 moles of K2CO3K2CO3 in…

A: Given, moles of K2CO3 = 6.79 moles Volume of the solution = 3.40 L Molarity of K2CO3 solution = ?

Q: 22 23 Ti V 40 Hf Ta 24 178.49 25 Cr 91 26 Mn Ni Cu 58.693 63.546 47 41 43 44 45 46 48 49 50 51 Zr Nb…

A: Atom consists of subatomic particles called protons, neutrons and electrons. In an atom, there is…

Q: Draw two enantiomers of (HOOC)CH(NH2)CH2CH(CH3)2

A: Enantiomers are two non Superimposable mirror image of each other.

Q: Does the following structural formula represent a meso compoun CH3 Br➡CHA Brl CH CH 3

A: The structure of the given organic compound is

Q: Which of the following molecules will have a T-shaped molecular geometry?

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Q: Blasts furnaces gives off many unpleasant and unhealth gases. If the total air pressure is 199 atm,…

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Q: By titration, it is found that 91.1 mL91.1 mL of 0.152 M NaOH(aq)0.152 M NaOH(aq) is needed to…

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Q: Write the balanced neutralization reaction that occurs between H2SO4H2SO4 and KOHKOH in aqueous…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: Using the standard enthalpies of formation, what is the standard ent CO(g) + H₂O(g) → CO₂(g) + H₂(g)…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

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

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Q: You are performing a transesterification and need to get your reagents ready. You are starting with…

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Q: A is directly to the left of B in the periodic table. C is directly below A and D is directly below…

A: Percent ionic character in a covalent bond depends on the difference in the electronegativity…

Q: Show the acid-base reaction if the following acid reacts with NaOH: oxalic (C2H2O4) citric…

A: When an acid react with base , a salt and water is formed as product.  This reaction is also known…

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.