Calculate the mass in grams for pure oxygen at 1.00 atm dissolved in 3.00 L of water with a kH = 1.28x10-3 M/atm at 20.0 oC.

Q: The equilibrium constant (K,) for the reaction PCI, (9) + Cla (9) PCI, (9) equals 49 at 230°C. If…

A: Given data :

Q: Calculate the standard entropy change for the following reactions at 25 C. 2 Na (s) + 2 H2O (l) -->…

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Q: 9. What happens when oxygen is added to an equilibrium mixture of this reaction? 4NH3(9) +302(g) →…

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Q: Write a balanced nuclear equation for this word statement. Magnesium-28 undergoes beta emission.

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Q: 19 The following reaction was allowed to reach equilib- rium at 25°C. Under each component is its…

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Q: Molality (m) is defined as moles of solute per _____ of _____.     kg; solution     L; solution…

A: There are various concentration terms for solution :-  Molarity  Normality  Mole fraction  %w/w…

Q: What is a standardization and why is it important?

A: Concept:  Standardization: Standardization is the process of determining the exact concentration of…

Q: Are CO2 and SO2 polar or nonpolar molecules? Explain

A: 1. The molecule  which have dipolemoment are polar in nature.  2. The molecule which have zero…

Q: 4. Determine the products of each of the reaction steps shown by curved arrow notation. Label the…

A: In this question we have to tell the product of the reaction.

Q: xsH28 CH2=CH-SIMECI2 A heating xsH20 HSİMECI2 В H2SO4

A: Product A is formed by the reaction of vinylmethyldichlorosilane with excess H2O. Product B is…

Q: coffee-cup calorimeter contains 60 mL of water with an initial temperature of 24.9 degrees C. An…

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Q: Make an Introduction about the reaction of Al + CuSO4 | Aluminum + Copper (II) Sulfate

A: Al + CuSO4----->

Q: Give the correct IUPAC name for the following compound. For alkenes, when appropriate, indicate…

A: Rules1.Longest carbon chain skeleton is chosen.2.Carbon skeleton is numbered in a way that   sum of…

Q: Determine the molar ratio of O2 / C2H6O C2H6O (l) + O2(g) -----------> CO2(g) + H2O(g) A.) 3/1 B.)…

A: In this question we have to tell the molar ratio of O2 / C2H6O

Q: Use the space provided below to draw a flow chart showing how you could separate a mixture…

A: The flow chart for the extraction of given compounds has been shown below:

Q: Determine the equilibrium constant (Keq) at 25°C for the reaction Cl2(g) + 2B1¯ (aq) = 201" (aq) +…

A: Cl2(g) + 2Br-(aq) ----> 2Cl-(aq) + Br2(l)

Q: Ag2S→2Ag + S; A) Determine the moles of Ag2S needed when 25 moles of Ag are produced. B) Determine…

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Q: Find the AH (in kJ) for the reaction below, given the following reactions and subsequent AH values:…

A: .

Q: The maximum concentration of polychlorinated biphenyls (PCBs) in drinking water that is allowed by…

A: The ppb concentration is the ratio between mass of solute to the solution volume, and final value…

Q: .1724g of a mineral containing MnO₂ was dissolved and then treated with excess iodide according to…

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

Q: Rank the following compounds in order of increasing basicity in aqueous solution, east basic first…

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Q: Calculate the change in pH when 41.0 mL of a 0.500 M so acetate and 1.00 M in acetic acid. 4.798

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Q: Primary alcohols can be. _to aldehydes. oxidized O reduced

A: Alcohol undergo oxidation to form aldehyde or ketone or carboxylic acid.

Q: A teardrop with a volume of 0.5 mL contains 5.0 mg NaCl. What is the molarity of the NaCl in the…

A: Given :  Volume of teardrop = 0.5 mL  Mass of NaCl in teardrop = 5.0 mg  To calculate :  Molarity of…

Q: b. HNO, он OH с. OCH, d. но но. OH

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Q: Give the correct IUPAC name for the following compound. + Br2 ↑

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Q: The following reaction is used to prepare oxygen gas: 2 H2O2(aq) → 2 H2O(l) + O2(g) If you start…

A: Concept:  Molarity = no of mole/ volume in liter  M = mole/V  So  No of mole = MV  From Idea gass…

Q: A student is using a calorimeter to determine the specific heat of a metallic sample. She measures…

A: we need to calculate the specific heat of the metal

Q: An essential amino acid is one that Multiple Choice occurs in all types of proteins must be included…

A: Amino acids  contain both amino group and carboxylic acid group.Which may classified as essential…

Q: 22 Describe how we would prepare the following solutions: 22 (a) 250 mL of a 3.6% w/v solution of…

A: As we know that  w/v% = w/v × 100 there fore a).  W=( w/v%× v )/100    W=(3.6×250)/100   W= 9g  by…

Q: If an orbital has an orbital angular momentum (Azimuthal) quantum number of four (4), what are the…

A: Given :- value of orbital angular momentum (Azimuthal) quantum number = 4  To determine : possible…

Q: HBr A) Br2 но 1.) BH, / THF 2.) H,O2. HO H,SO, H,0

A:

Q: 15 Write equilibrium expressions for these reactions. (a) 2H,0,(g) 2H,0(g) + O,g) (b) 2N,0,(g)=…

A: Equilibrium expressions for the given reactions

Q: Question 31 Give the correct IUPAC name for the following compound..

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Q: A reaction must be nonspontaneous at all temperatures when Select one: О а. AH is negative and AS is…

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Q: medical technician is working with the four samples of radionuclides listed in the table below.…

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Q: 2. Predict IR signal and their values of (tetrahydrofuran) Also predict number of NMR signal). (No…

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Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.80 billion years old by…

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Q: What is(are) the major organic product(s) obtained from the following substitution reaction? OCH, 1.…

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Q: Chemistry 5. Write the notation for the following cells where the following reactions occur…

A: To write cell notation for the following cells given

Q: A compound contains 76.47% Cr and 23.53% O. Calculate the empirical formula. Cr= 52.00 g/mole,  O =…

A: Given :-  Percent composition of Cr = 76.47 %  Percent composition of O = 23.53 %  MM of Cr = 52.00…

Q: Initial Final Electrode A: 10.345 g 10.278 g Electrode B: 14.010 g 14.887 g Current 0.3942 A time 39…

A: Given: Mass lost by electrode = 0.067 grams (g)Current = 0.3942 ATime of electrolysis = 39min 50s =…

Q: Br CH3 Br

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Q: Radioactive decay is typically second order. True or False. Why? Specify equations, if any.

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Q: + 5.8234 %3D 7a) 7) For the equation: log, (VPPa) = (-1234 K). calculate the: a ) ΔΗ vap 7b) b) Tnvp…

A: The equation given is, => log(VPKPa) = -1234T + 5.8234

Q: Balance the following skeleton reaction, calculate E cell and state whether the reaction is…

A: Given, the unbalanced reaction: Mn2+(aq) + Co3+ (aq) → MnO2(s) + Co2+(aq) We have to balance this…

Q: H2SO4 Compound Delta Ho (kj/mol) Delta So (J/k . mol) S 0 31.88 O2 -285.8 69.9 H2O 0 205 H2SO4…

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Q: prepare 0.7% potassium Chloride (KCI) in 0.3 liter ?

A: Given :-  % w/v of solution = 0.7 %  Volume of solution = 0.3 L  To find :-  Mass of KCl (in grams)

Q: ) What is the mole fraction of HCl in a solution that is prepared by dissolving 25.5 g of HCl in…

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Q: The concentration unit one part per billion (one ppb) is equivalent to one _____ of solute per _____…

A: In this question, we will see that 1ppb is equivalent to which unit.  ppb and ppm both are…

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.