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Q: Calculate the pH of a 0.317 M solution of NaNO2. The ionization constant, ?a, for the acid, HNO2, is...

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Q: Reaction conditions are 400 K and 2 bar Determine the equilibrium constant K for this reaction at 4...

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Q: A chemist determines by measurements that 0.035 moles of chlorine gas participate in a chemical reac...

A: Moles of Cl2= 0.035 moles  Molar mass = 70.90 g mol-1 Then,    

Q: 2. Apply Q test at 95% confidence level for the following set of data on percent copper of a certain...

A: Given Value: 70.65, 70.63, 70.64, 70.21  

Q: Many household cleaning products contain oxalic acid, H2C2O4, a diprotic acid with the following dis...

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Q: If a buffer solution is 0.280 M in a weak acid (K, = 4.9 x 10) and 0.400 M in its conjugate base, wh...

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Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3(Si2O5)2(OH)2 An a...

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Q: QUESTION 5 Consider the following reaction at equilibrium: A (g) = 2B (g) Temperature (°C) 200 400 K...

A: Exothermic reaction is a reaction in which heat is released and endothermic reaction is a reaction w...

Q: Determine the OH of a 0.23 M ammonia solution. K, = 1.76x10-5 Express your answer using two signific...

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Q: A alkaloid compound contains 74.02% C, 8.710% H and 17.27% N. The empirical formula of the compound ...

A: Given:  Weight % of carbon = 74.02 %  Weight% of hydrogen = 8.710 %  Weight % of nitrogen = 17.27 % ...

Q: (a) For a sample of gas at constant temperature, its pressure multiplied by its volume is a constant...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: An iodine-clock kinetics experiment was performed by varying the composition of reactant solutions a...

A: Correct answer:Mechanism 2 Rate determining state is that elementary step which is slowest. now if w...

Q: A hot lump of 27.0 g of iron at an initial temperature of 81.7 °C is placed in 50.0 mL H,0 initially...

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 254. kJ during a ...

A: Given :- Q = +254 KJ positive because energy is absorbed by system W = +185 KJ positive because work...

Q: Balancing using only oxidation number method. Please show complete steps in balancing. Don’t skips i...

A: Balance a redox reaction by oxidation number method.

Q: Automobile airbags contain solid sodium azide, NaN,, that reacts to produce nitrogen gas when heated...

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Q: density

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Q: y seconds da

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Q: At a certain temperature, the pH of a neutral solution is 7.85. What is the value of Kw at that temp...

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Q: 2. For the reaction; 2NH3 (9) == N2(g) + H2(g) , Which way will the reaction proceed ( reactant or p...

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Q: In the formation of copper(11) oxide from copper(1) hydroxide mixture, what do we need to do to prev...

A: We have to tell the formation of copper (II) oxide from the copper (II) hydroxide mixture. The given...

Q: write the half-reactions and draw the cell diagram for a galvanic cell (short hand cell notation) in...

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Q: The rate of chemical reaction is affected or influenced by several factors. SATA *   choose 5   Temp...

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Q: Туре: МС UESTION 6 Which of the following reactions form the products shown? Choose all correct answ...

A: Here we have to determine the correct product formed in the following given reaction. Addition of Cl...

Q: QUESTION 1 a) Define rate of reaction. Write the expression to show the relationship between the rat...

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Q: QUESTION 3 Use Hammond's postulate to determine which alkene in each pair would be expected to form ...

A: The correct option are as follows:  

Q: QUESTION5 Compound A has the formula C8H8. It reacts rapidly with KMN04 to give CO2 and a carboxylic...

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Q: QUESTION 9 Which of the following alkenes yield(s) 3-bromo-3-methylpentane as the major product upon...

A: In this given alkenes all of them gives 3-bromo3-methylpentane as the major product upon addition of...

Q: 1R,2R only 1S,2S only O 1R,2S only Oan equal mixture of 1R,2R and 1S,2S an equal mixture of 1A,2R an...

A: Answer: This question is based on the stereochemistry of the products formed where we have to decide...

Q: Drow the most electron-rich carbon atom in he compound below:

A: By + R resonance effect electron density will increase at particular carbon atom.  

Q: Arrange the 0.10m aqueous soultions of the following solutes in decreasing order. According to boil...

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Q: Identify compound Y? Ha B12 Y CH3 CHa Lindlar Pd

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Q: 2. Usé thè linear regression équation ànd the fóllowing Abs 595 dată and dilution factors för calcul...

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Q: Make a Bjerrum-type plot for H2S- HS--S2-. To start: a) Write out the dissociation equilibria (the r...

A: Given that, H2S-HS--S2-. We have to write the dissociation equilibria and the equilibrium constant e...

Q: Consider the following reaction. 2HI (g) = H2 (g) + l2 (g) Ke = 0.020 at 720 K If the initial concen...

A: The mathematical expression for reaction quotient(Qc) of a reversible chemical reaction is similar t...

Q: How many moles are in 1.06 x1020 atoms of iron?

A: Given :- number of atoms of iron = 1.06 x1020 atoms  To calculate :- number of moles of iron

Q: Which of the following is much more acidic?

A: Option B is correct answer.  

Q: QUESTION 5 Compound A has the formula C8H8. It reacts rapidly with KMNO4 to give CO2 and a carboxyli...

A: The number of double bond present in a compound with known molecular formula can be determined by us...

Q: 1 The oxygen tank in a hospital respiratory unit has a pressure of 4840 mmHg. What is the pressure o...

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Q: Write equations showing how each of the following weak bases ionizes water to form OH− 1. NH3 2. H...

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Q: Determine the value of E°cell and ∆G° of the reaction: Al + 3Ag+ —> Al3+ + 3Ag

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Q: For the following reaction at a certain temperature, 1.57 mol H2 and 1.56 mol l2 are placed into a 2...

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Q: The last slide of the video on applications of the Boltzmann distribution describes the behavior of ...

A: Hydrogen gas molecule are diatomic molecule and the gas is at thermal equilibrium.

Q: QUESTION 7 Identify compound Y? H2 Bi2 Y CH3 = CH3 Lindlar Pd racemic (2S,3R) and (2R,3S)-2,3-dibrom...

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Q: The temperature of the water bath is monitored, and it is determined from this data that 215. kJ of ...

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Q: Determine the pH of a 0.13 M solution of pyridinium nitrate (C5H5NHNO3) at 25°C. [Pyridinium nitrate...

A: Determine the pH of a 0.13 M solution of pyridinium nitrate

Q: Given the following equation: 2 KCIO3 → 2 KCI +3 02 How many grams of O2 are produced when 56.00 gra...

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Q: Question 13

A: True and false .,  

Q: Complete and balance the following half-reaction in acidic solution: H₂SO₃(aq)→SO₄²⁻(aq)

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Q: QUESTION 11 How would you carry out the following conversion? E-CH3 O (1) H20, H2S04/H9SO4; (2) H2, ...

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Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.