25.0 mL is taken from a stock solution of concentration 14.9 g/L and added to a 250.0 mL volumetric flask and diluted up to the calibration mark. What is the new concentration (in grams per liter)? Give your answer to three significant figures. 9/L

Q: 17. When 123.0 mL of a 0.0467 M KF solution is added to 234.0 mL of a 0.0100 M solution of Ba(NO3)2,…

A: Answer:- This question is answered by using the simple concept of calculation of Ksp using the…

Q: Using data from Table A-25, calculate the equilibrium constant expressed as log10K, for the…

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Q: CH4(g) + 2Cl2(g)  CCl4(g) + 2H2(g) Which of these are true for the reaction above? Check all that…

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Q: A solution contains Cr³+ and Mg2+. The addition of 1.00 L of 1.52 M NaF solution is required to…

A: Given -> Volume of NaF = 1.00 L  Molarity of NaF = 1.52 M  Total mass of precipitate= 49.9 gm

Q: Citric acid, which is present in citrus fruits, is a triprotic acid  (Ka1=7.4x10^-4; Ka2=1.7x10^-5;…

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Q: Propose a structure and label the structure with the letter given in the table. Molecular Formula :…

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Q: Visited Learning Science 00:00 University of BRISTOL 00:00 View Transcript Do not force the pipet…

A: The formula of dilution is  M1V1 = M2V2 Where, M1 and M2 are Molarities of stock and diluted…

Q: the enthalpy change AH during the following reaction: CH()+ 3H₂(g)-3C₂H4(9) AH-108. kJ Use this…

A: The thermochemical equations can be treated as algebraic equation which can be added,  subtracted,…

Q: Does the following reaction absorb or release energy? (1) Cr(g) + e → Cr (g) Is it possible to…

A: Given reaction is Cr + e -----> Cr-

Q: Of the substances below which answer correctly gives ALL of the in the Table. H H H (1) H-C-0-H (2)…

A: There are various types of intermolecular forces of attraction.  Dipole-Dipole attraction London…

Q: C- Identify if the Oxidation product form is: Aldehydes, Ketones and no reaction. 1. 1-Pentanol 2.…

A: We have been given five alcohols and we have been asked to identify oxidation product of each…

Q: How many grams of Cl₂ can be produced from 88.0 g KMnO4? 2KMnO4 + 16HCI5Cl2 + 2KCI + 2MnCl2 + 8H2O

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Q: When 125 ml of 0.175 M Pb(NO₂), is mixed with 145 ml. of 0.210 M KBr. 4.92 g of PbBr, is collected.…

A: Limiting reactant - Reactant species which present in less amount  All the calculation will done on…

Q: How many moles of carbon are in a sample of 2.5125∗1027 atoms?

A: One mole of any element contains avogadro no of atoms i.e. 6.023*1023 no of atoms.

Q: Provide the necessary reactants to make these following transformations/l 1) 2) 3) OH NH₂ OH

A: As per the rules only the first question can be answered. Please resubmit for the other question.

Q: Which of the following is an allowed set of four quantum numbers? OA.n=5, 1 = 4, m = -4, ms = -1/2…

A: Since, For representation of electron in an orbital we use four type of quantum number-- 1)Principle…

Q: Give the organic product: Br Select one: O A. I O B. IV C. II OD. III + HBr || Br der Br IV Br

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Q: In an electrochemical cell, Q = 4.0 and K = 0.07. What can you conclude about Ecell and E°cell?

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Q: 4. Calculate the cell emf for the following reaction at 25°C: Ni(s) + 2Cu² (0.010 M)→ Ni² (0.0010 M)…

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Q: : Questions [References] A buffer solution contains 0.348 M hydrocyanic acid (Ka = 4.00×10-10) and…

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Q: 2. When C4H8 is treated with water and H₂SO4, a tertiary alcohol is produced. Draw the molecular…

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Q: What are the experimental errors and results that you may encounter in your qualitative analysis?…

A: Answer: Qualitative Analysis:Qualitative analysis the determination of non numerical information…

Q: long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or…

A: Bases in DNA: Adenine, Guanine, Cytosine and Thymine Bases in RNA: Adenine, Guanine, Cytosine and…

Q: 1. CH3Br DEL 2, H₂0 → Goll loet -CH3 HNO3 H₂SO4 CH3 H Brz FOH → H₂0 (mild) 1.BH3-THF LEB 2. H₂O heat…

A: HNO3/H2SO4  ----> Nitrating agent Two aldehydes undergo cross aldol in the presence of a base…

Q: A voltaic cell was constructed based on the two reactions shown below: Reduction half reaction:…

A: The half-cell reactions are: Reduction half reaction: Cl2(aq) + 2 e- ⟶ Cl-; Eoreduction = 1.36 V…

Q: Complete the table and propose a structure

A: The splitting of 1H-nmr follows (n+1) rule, where n = the number of adjacent hydrogens. If, n=0,…

Q: Provide the necessary reactants to make these following transformations/1 1) không ngư H₂C-S NH₂ OH

A: This is an example of Strecker synthesis of amino acids

Q: Which of the following are correct Lewis structues? 1. NO21 :OIN=0: 3. NF5 한 2. PF3 4. SF4

A: Lewis dot structures are the diagrams in which the valence electrons of the atoms of a compound are…

Q: Which of the following ions has the smallest size? О сг Br O Ga³+ Okt Ca2+

A: Atomic radius: The distance between the nucleus and the outermost electron is known as the atomic…

Q: 8.Thermodynamics Score: 0/20 0/14 answered Question 1 Y The process of burning gas is (endothermic,…

A: The correct option is Exothermic and Spontaneous. The burning of natural gas is produce heat . Any…

Q: Phosphorus pentachloride, PCIs, a white solid that has a pungent, unpleasant odor, is used as a…

A: mole is equal to weight of substance divide by it's molar mass

Q: Explain the transition state And effect of non polar solvents of sn2 reaction

A: We have been asked to explain the transition state and we also have been asked to explain effect of…

Q: A gaseous mixture with a molar analysis of 20% CO2, 40% CO, and 40% O₂ enters a heat exchanger and…

A: Given , Gaseous mixture of 20 % CO2 , 40 % CO , 40% O2

Q: Is the configuration of the following molecule R or S?

A: According to Cahn-Ingold-Prelog rule-   1) More atomic number having more priority. 2) If first atom…

Q: A H3C н HEE H Н Н OH

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Q: what is a ph of a solution with [OH^-] of 2.2x10^-7 M

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Q: If 0.0180 mol CaCl, is dissolved in water to make a 0.700 M solution, what is the volume of the…

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Q: Consider the following equilibrium reaction: H₂O + H₂O H₂O* + OH¯ When Sr(OH)2 is added, the…

A: Given , Reaction : H2O + H2O ⇌ H3O+ +OH-

Q: Consider the phase transformation HgS(s, red) = HgS(s, black) AG = 4,180-5.44T,J 1) Determine the…

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Q: For the cell Fe|Fe+2(a=0.6)||Cd+2(a=0.01)|Cd calculate the potential of the cell at 298K. Hint,…

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Q: By first law of thermodynamics, Ο q = ΔΕ - W Ο q = ΔΕ+W O q = -ΔΕ-W q = = -ΔΕ+W Ο

A: Answer: First law of thermodynamics is based on the energy of conservation and it gives us relation…

Q: Consider the reaction: 2 NO+O-2 NO When 1.000 mol O(g)s reacts with excess NO(g). 114.0 kJ of heat…

A: Option b) -114.0KJ To calculate the change in internal energy (AU) for the reaction, we need to…

Q: following reaction? о Select one: A. I B. || I ОН II ОН ОН IV он по това исто ОН "ОН ОН C. IV…

A: KMnO4 is a strong oxidizing agent. It oxidizes alkene.

Q: Using AH values from the appendix, calculate the standard enthalpy change for the following…

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Q: What is the IUPAC name of the following compound (Newman projection formula is shown)? H3C H3C H H…

A: Answer: Newman projection formula of the compound is given to us and we have to write down the IUPAC…

Q: If a gas is at STP (standard temperature and pressure), the temperature is 0.00°C and the pressure…

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related by the ideal…

Q: hat volume of propane (C₂Hs) is required to react with 88.3 liters of oxygen gas ccording to the…

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Q: For the synthesis of maroon dye, Taylor needs to use a primary amine with a pH between 3.00 and 4.00…

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Q: The following is a double replacement reaction. 2C 2H 2 + 50 2 → 4CO 2 + 2H 20 True False

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Q: What volume of 0.0100 M NaOH must be added to 1.00 L of 0.0500 M HOCl to achieve a pH of 8.00? The…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.