Potassium bromide (KBr) has a molar mass of 119 g/mol. If I want to make 82.0 mL of a 0.231 M solution, how many grams of KBr do I need? Report your answer with three significant figures.

Q: Mn +2 + BiO3™ ↑ MnO4 + Bi+3

A:

Q: Compare Proton and Carbon 13 NMR?  Please answer at your own easy words. Answer should be to the…

A: Nuclear Magnetic Resonance refers to the resonance (absorption fo signal) caused due to interaction…

Q: 3 Which type of emission has the highest penetrating power? gamma O alpha O beta O positron 4 Which…

A: These are the question based on the property of different types of radiation. Based on the property…

Q: What is the hybridization of the indicated atom in the following compounds (or ions)... P in PF5 O…

A:

Q: What is the equilibrium distribution of electrons in the bands? and what are the distribution…

A: Holes and electrons are the two types of charge carriers responsible for current in semiconductor…

Q: Q represent a mass (in grams) of carbon , whose half-life is  5715 years. The quantity of 1 carbon…

A: Given , Half life of carbon = 5715 years

Q: The four lowest electronic levels of a Ti atom are: J = 2, 3, 4 and 1, at 0, 170, 387 and 6557 cm-1,…

A: Relative populations of different levels depend on their energy difference.  and  For each…

Q: What is the solubility product expression for Pb3(PO4)2?   Question 3 options: A)…

A: Solubility product constant (Ksp) is the equilibrium constant for a solid substance dissolved in…

Q: Draw the major product of the aldol condensation reaction between two of these aldehydes with the…

A: Aldol condensation: Two carbonyl compounds joined together by the formation of a carbon-carbon bond…

Q: Chlorine can be produced in the laboratory by reacting HCI with magnesium (IV) oxide: HCI (aq) +…

A: Given:  Moles of HCl = 7 mol Moles of MnO2 = 4 mol

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.50 billion years old by…

A: Given , Age of sample collected from moon t= 3.5 billion year =3.5×109 year

Q: What is the hybridization of the indicated atom in the following compounds (or ions)... Cl in ClF3…

A: In this question, we will determine the hybridization of the indicated atoms in molecules or ion.…

Q: 6. The Newman projection and an equivalent 3D projection for an alkyl bromide is shown below. Under…

A: To answer: In 1-2 sentences, explain why only one constitutional isomer (regioisomer) forms.   b.…

Q: The Eºcell = 0.135 V for the reaction 312(s) + 5Cr₂O7²- (aq) + 34H*(aq) →6103¯ (aq) + 10Cr³+ (aq) +…

A: Given -> E°cell = 0.135 V  [Cr2O72-] = 0.036 M [H+] = 0.28 M  [IO3-] = 0.00027 M [Cr3+] = 0.0015…

Q: Give 3 examples of 2D NMR?  Please answer at your own easy words. Answer should be to the point.

A: 2D or two dimensional NMR spectroscopies are the techniques for correlating  the couplings among the…

Q: What is the final concentration of a solution prepared by diluting 25.0 mL of 12.0 M HCl to a final…

A: we have to calculate the concertation of the dilute solution

Q: MISSED THIS? Watch KCV: Finding Equilibrium Concentrations from Initial Concentrations, IWE: Finding…

A: Solving only first question in accordance with the guidelines.  We will draw ICE table , then…

Q: Pt(s) | H2(g, 0.100 bar) | H+(aq, pH = 2.54) || Cl−(aq, 0.200 M) | Hg2Cl2(s) | Hg() | Pt(s) Use…

A:

Q: Ammonia gas decomposes according to the equation: 2NH3(g) → N2(g) + 3H2(g) If 12.0 L of nitrogen…

A: Given, At STP, a gas occupies 22.4 L volume. The volume of N2 formed = 12.0 L. The volume of H2…

Q: HN. N

A: To name the given structure.

Q: The vapor pressure of water at 25 °C is 0.0313 atm. Calculate the vapor pressure in mmHg and torr.

A: Answer: This question is based on unit conversion where value of pressure from one unit needs to be…

Q: Which of the following statements is correct? Diprotic acids ionize in two steps but all strong…

A: Here, we have to find the correct statement about diprotic acids and strong bases with two hydroxide…

Q: Carbon atoms always have how many covalent bonds? one two three four five

A: Name of element = carbon Number of electrons = 6 Valency = 4

Q: How many formula units are present in 825 mL of a 0.250 M solution of calcium hydroxide?

A: Volume of solution = 825 ml = 0.825 L....... ( 1 L =1000 ml) Concentration of the calcium hydroxide…

Q: ammonium = NH4+ carbonate = CO32- hydroxide = OH- nitrate = NO3…

A:

Q: How many moles of oxygen are present in a 6 L sample of dry air at 6 atm and 88 °C? (R=0.0821 L…

A: Answer: Given data: V=6LP=6atmR=0.0821L-atm/mol-K T=88°CT=(88+273.15)KT=361.15K

Q: complete answer please send me

A: We have been given a reaction and we have been asked to write the reagent used in this…

Q: Question 16 In dry air, sound travels at 343 m/s. If you are 48 miles away from a lightning strike,…

A:

Q: 1.Convert 82.5 g of potassium acetate to moles

A: 1. Formula of potassium acetate = CH3COOK Mass of CH3COOK = 82.5 g Molar mass of C = 12 g/mol Molar…

Q: Draw the structure and complete the reaction. A. phosphate + deoxyribose + Thymine -->  B. 2…

A: This question is based on structure of nucleotide. Phosphate unit , sugar unit and nitrogenous base…

Q: What is the Ka reaction of HCN? K₂ reaction: The K₂ of HCN is 6.2 x 10-¹0. What is the K, value for…

A:

Q: A 1.71 mg sample of copper reacts with oxygen to form 1.93 mg of a copper oxide compound, CuxOy.…

A:

Q: For the chemical reaction H₂ (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the molar enthalpy…

A: In the given question, molar enthalpy of a reaction is given as :-  H2(g) + F2(g) -----> 2HF(g)…

Q: Practice Problems: What is the hybridization of the indicated atom in the following compounds or…

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

Q: A hydrocarbon contains only the elements carbon and hydrogen. carbon, hydrogen, and nitrogen. carbon…

A: Hydrocarbons and their derivatives are known as organic compounds. An organic compound can be formed…

Q: 2 A 10.5 mL sample of liquid ethanol (C,H,OH, density = 0.789 g/mL) was injected into a 10.0 L…

A:

Q: Use the AHºf information provided to calculate AH°rxn for the following: CH4(g) + 2O2(g) → CO₂(g) +…

A: Enthalpy of a reaction can be predicted using the standard enthalpy of the formation of the species…

Q: A H1 NMR signal is observed at 117.0 Hz (downfield of TMS) on a 1.20×102‑MHz instrument. a) What is…

A:

Q: Give a correct name for the following compound: CH3 NO₂ CH2-CH-CH-CH2 CH3 01 NO₂ 1-methyl-2,3…

A:

Q: AH°f is zero for H(g). O True O False Question 6 AH° is zero for H₂(g). O True False

A: ∆Hf° values for H(g)and H2(g) = ?

Q: Categorize each molecule according to which hybrid orbitals are used by the central atom to form.…

A: Hybridisation is the concept of mixing atomic orbitals to form new hybrid orbitals suitable for bond…

Q: Classify each chemical compound listed in the table below. Classify each chemical compound listed in…

A: Given : compounds Tip : acid donates H+ while base donates OH-  Metal and non-metal form ionic…

Q: Choose the elemental ground state electron configuration for P.

A:

Q: A 7.00L tank at 8.89°C is filled with 2.65g of carbon dioxide gas and 14.2g of chlorine…

A: Given , Volume of tank , V = 7.00 L TemperatureT=8.89°C=(8.89+273.15)K=282.04 K

Q: Complete and balance the following redox reaction in basic solution. Be sure to include the proper…

A:

Q: explain why there is a differnce in the conductivity of tap water compared to distilled waterx

A: We use distilled water for reactions and tap water for cleaning. The reason we use distilled water…

Q: What are the [H3O+] for a solution with pH = 14?

A:

Q: Macmillan Classify each reaction as a redox reaction or a non-redox reaction.

A: Redox reaction: oxidation and reduction both takes place.

Q: Suppose 30.0 mL of 0.100 M Pb(NO3)2 is added to 60.0 mL of 0.150 M KI. How many grams of Pbl2 will…

A:

Q: What amount (moles) of compound is present in 3.60 g of each of the following compounds? a. b.…

A: Number of moles is calculated by dividing given mass with molecular mass. In the given  question, it…