How many oxygen atoms are thre in 6.00g of sodium dichromate, Na2Cr2O7? The molar mass of sodium dichromate is 361.97g/mol.

Q: information is provided in a chemical equation? A. which compounds are involved B. the ration of the…

A: The given question is  The information is provided in a chemical equation is A. which compounds…

Q: Define polymer

A: Polymers are frequently used in our day-to-day life and can be defined as shown below:

Q: Light Photoelectric Effect Check Metal Surface The minimum frequency of electromagnetic radiation…

A: The minimum energy required to remove an electron from a metal surface is called  threshold energy…

Q: fill in the boxes with the correct reagent, reactant or product b) c) 3 d) e) f) g) (h) OH OH OH aff…

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Q: A student conducted an experiment in a Styrofoam cup calorimeter that contained 100.0 g of water at…

A: ∆H°reaction using standard enthalpies of formation: Reaction for dissolution of urea in water:…

Q: 23. A 1 L solution initially contained 0.42 M fluoride anion and 0.33 M HF (K₂ = 7.2 x 10-4). What…

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Q: Predicting the formula of ionic compounds with common... Write the empirical formula for at least…

A: Empirical formula: it can be defined as the simplest whole number ratio of different atoms in the…

Q: • The work function energy for a particular metal is 2.80 eV (electron volts) per electron ejected.…

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Q: The pOH of an aqueous solution at 25°C was found to be 13.00. The pH of this solution is  The…

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Q: Arrange the following in order of decreasing boiling point. I нннн н-с-с -с-с-NH2 н н Н Н HTC-H H-C-…

A: Boiling point : The temperature at which liquid becomes a gas is known as boiling of substance.…

Q: Consider the unit cell of a face-centred cubic structure of platinum (Pt) atoms, each with radius…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Element L M O 58 60 64 Atomic Number 30 O 66 Mass Number 80 Protons 35 What is the mass number for…

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Q: 5. What is the net production/usage of ATP and redox cofactors if a glycerol (triaceylglyceride…

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Q: Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs,…

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Q: At  1 atm,  how much energy is required to heat  41.0 g H2O(s)  at  −16.0 ∘C  to  H2O(g)  at  121.0…

A: Given : mass of water = 41 g     And various temperature

Q: Suppose you measured an optical rotation of 170.05° on one of the Azotta polarimeters, but you do…

A: The value observed on the polarimeter is called observed optical rotation. It is the rotation of…

Q: (a) Sn1 1 nucleophilic control Br (b) Sn1-steric control _CH,CH,OH NH₂ TH

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Q: Which of the following statements regarding acid dissociation are correct? 1. The K₂ correlates with…

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Q: 2. Compute for the formula weight of the following: a. CuSO4 b. Br₂ C. C₂H5NO2

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Q: QUESTION 1 The solubility of QD2 is 5.80 grams per liter of solution (pay attention to the units!).…

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Q: 1- For the above shown IR-Spectrum (Indicate the structure of the organic molecule). What are the…

A: Since you have asked multiple questions, we will solve the first question for you. For remaining…

Q: Chemistry What is the equation for producing Nitrogen Triiodie Ammoniate (NI3*NH3) from 12, 1-, and…

A: To write the equation for producing nitrogen triiodide ammoniate (NI3·NH3) from I2, I-, and NH4OH.

Q: The ?aKa of a monoprotic weak acid is 0.00508.0.00508. What is the percent ionization of a 0.182…

A: Answer: We have to find out the percentage ionization of a monoprotic weak acid and data given for…

Q: (x) MF=CsH100 ¹H Decoupled b c 240 B ppm 0 240 DEPT 135° ppm b c 0 240 DEPT 90° ppm

A: The double bond equivalent gives us idea about propable number of double bond ring may be present in…

Q: NH₂(g) and H₂O(1) react to form a solution containing NH,+ (aq). ▼ Part A Which substance is the…

A: According to Bronsted Lowry acid-base concept:  An acid is a substance which can donate proton and…

Q: 5. 10.0 mL of 0.200 M NaOH is titrated by 0.100 M HNO3. How much HNO3 is required to reach a 7.0? A.…

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Q: a -b Н d

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Q: 2. For the reaction, K = 0.513 at 500. K. N₂O4 (9) 2 NO₂ (9) If a reaction vessel initially contains…

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Q: Blackberries have a (H3O+(aq) =3.0*10^-4 mol/L what is their pH a. 2.0 b. 4.0 c. 3.0 d. 3.5

A: pH = It is the measurement of H3O+ ion of a solution less is value of pH more is the acidic in…

Q: A researcher conducted an experiment and needed to use L-Leucine. He is able to scavenge four…

A: According to the given table :  The melting point of L-leucine = 293 °C The melting point of L-…

Q: Recrystallized 2-naphthol compared to literature values • Format the table and the descriptive…

A: Infrared spectroscopy deals with the study of interaction of compounds/ organic molecules with…

Q: The following reactions all have K > 1. 1) C6H5COO (aq) + HC₂H₂O4 (aq) = C6H5COOH (aq) + C₂H₂O4 (aq)…

A: Bronsted lowery acid = proton donar  Bronsted lowery base = proton acceptor

Q: Compound (CH) CHCOCHCH₂+ [H] CH₂C(Br)CHCH(OH) +KMnO pasion Permanganet Methylcyclohexene + water →→…

A: 1) The reactant is -(CH3)2CHCOCHCH3. It is a ketone Addition of [H] represents reduction of ketone…

Q: 1. Predict the structure of ethanol once it oxidizes in the human body. Draw the condensed structure

A: Dear student, we are authorised to solve only one question at a time. Please post rest of the…

Q: Given: IO31- + 6 H1+ + 6 S2O32- --> 3 S4O62- + I1- + 3 H2O If 13.98 mL of 0.184 M S2O32- Are…

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Q: Task 1. Express the rate law Direction: Express the rate of the following chemical reactions in…

A: Rate of a reaction :  The change in the concentration of reactants or products with time is called…

Q: What is the amount concentration of 1.20 mol of potassium hydroxide in 800 ml of solution a. 1.5…

A: Concentration of the solution is determine by operating ratio of moles of compound to the volume of…

Q: A chemist titrates 120.0 mL of a 0.3246M cyanic acid (HCNO) solution with 0.2427M NaOH solution at…

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Q: Phosphorus pentachloride decomposes at high temperatures. PC15 (g) ⇒ PC13 (g) + Cl₂ (g) An…

A: The equilibrium concentration can be calculated by applying ICE table on given reaction.

Q: Rank the following solutions in order of decreasing [H3O+].

A: Given : acids and their concentration. Tip: [H3O+] is directly proportional to acidic strength

Q: Ammonia is synthesized commercially from nitrogen gas and hydrogen gas for the production of…

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Q: Which of the following is incorrect with regards the molecule shown below? OH CH₂ | | CH₂CH--CCH,…

A: First we would check the nature of alcohol based on carbon OH group is bonded.  Then we would name…

Q: Recrystallized Benzoic acid compare to literature values • Format the table and the descriptive…

A: Infrared spectroscopy deals with the study of interaction of compounds/ organic molecules with…

Q: An aqueous hydrogen chloride solution reacts with water as follows  HCl(aq) + H2O(L) > H3O+(aq) +…

A: An aqueous hydrogen chloride solution reacts with water as follows    HCl(aq) + H2O(L) > H3O+(aq)…

Q: An analytical chemist is titrating 91.3 mL of a 0.7000M solution of butanoic acid (HC3H,CO₂) with a…

A: Here we  are required to find the pH of the solution.

Q: True or false to calculate the percent yield of a reaction, the correct formula is percent yield =…

A: Percent yield of a chemical reaction represents the efficiency of an experiment, procedure and…

Q: 4. A researcher wants to know how much orange food dye is present in their daily Orange Crush soda,…

A: Given: Molarity of stock solution, M1 = 1.50 x 10-2 M Final Volume to be made, V2 = 100 mL

Q: .) Levoxyl is a drug used to treat Hypothyroidism, if a patient takes one 75.0 ng tablet per day,…

A: 1). Dose per day of tablet = 75 ng ( nanogram )  Number of days = 30 days

Q: Calculate the concentration of H2CO3 and HCO3- in a 0.145 M solution of H2CO3. (Ka1= 4.3x10-7 and…

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Q: (8) 9. How much energy is required to heat 81.0 g of water (specific heat = 1.00 cal/g°C) at 11.0°C…

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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.