You are washing glassware in a lab. The solution your 1 L beaker contains 5 mol/L NaOH in water. It is known that 1% of the mixture adheres to the walls of the beaker when the beaker is drained. Thus, if you drain the beaker, 0.01 L of the original contents of the beaker remains in the beaker. The beaker must be filled with 1 L of pure water between each rinse. The beaker is then stirred very well.

Q: Write the molecular and net ionic equations for the reaction of the following reactions. Show the…

A:

Q: Using any necessary data from appropriate sources, predict the enthalpy of formation of KCl and KF…

A: Born-Haber cycle is used to find the lattice enthalpy and enthalpy of formation of an ionic compound…

Q: Why is there a need to adjust the acid concentration of Group I cations before saturation with H₂S?…

A: A question based on qualitative analysis of cations that is to be accomplished.

Q: Re-call that the Beer-Lamber law applies only over a certain range of concentrations. This range…

A: Beer's law or Beer-Lambert law: It states that the absorbance of a compound is proportional to the…

Q: You have been asked to determine the empirical formula of an iron(?) nitrate salt, Fe(NO). You weigh…

A: Firat we would calculate the mass of iron and nitrate ion . Using the mass , we would calculate…

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) MnO₂ + CrO3 → Mn + CrO4 CONTENT SHOULD…

A: We have to find the balanced redox reaction for the following: MnO2 + CrO3-     ---->  Mn + CrO4-

Q: Give all possible resonance structures for the given molecule and identify the major contributor…

A:

Q: Question: 1.Which of the following compounds contains a metal ion with 2+ charge? A. Cu2S B. NiCr207…

A:

Q: How many grams are contained in a 0.893 mol sample of methane, CH4?

A:

Q: What are the rules we should follow when handling reagents and solutions to prevent contamination?

A: There are some general rules that we should follow while handling reagents and solutions to prevent…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: when the following equation is balanced properly under basic conditions, what are the coefficients…

A: We are given an unbalanced equation  ___Ag2O + ___S2- ---> ___S + ____Ag we need to balanced the…

Q: The reaction A(g) ──> 2B(g) has an equilibrium constant Kc = 1.0 at a given temperature. If a…

A: According to Le Chatelier's principle if factors (such as temperature, pressure, molar concentration…

Q: Determine the volume of 0.205 M KOH solution required to neutralize each sample of sulfuric acid.…

A: The balanced equation is  H2SO4(aq) + 2KOH(aq) → K2SO4(aq)+2H2O(l) A) Number of moles of H2SO4 = M*V…

Q: Suppose a small sample of pure X is held at -220. °C a What will be the state of the sample?

A:

Q: 3) The molality of an aqueous solution of sugar (C12H₂2011) is 1.62 molal. Calculate the mole…

A:

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) MnO₂ + CrO3¯ → Mn + CrO4 CONTENT SHOULD…

A: We have to balance the given redox reaction. The given redox reaction is MnO2 + CrO3- → Mn + CrO4-.…

Q: 5.) What volume in mL of a concentrated solution of NaOH (6.0M) must be diluted to 200 mL to make a…

A:

Q: A 1-carat diamond is pure crystaline carbon and has a mass of 0.200 g.Which contains more carbon…

A:

Q: If 785 mL of 0.350 M AgNO₃ is added to 475 mL of 0.250 M CaBr₂, how many moles of AgBr precipitate…

A:

Q: A spontaneous process always increases the system entropy O True O False

A:

Q: Question: (4.4) Describe two differences between a boson and a fermion. To which family do the…

A: Given  Find out differences between a boson and a fermion.

Q: 7.) A compound crystallizes with cations (A) in a face centered cubic (fcc) lattice with eight…

A: A unit cell is a repeating unit of a crystal lattice. The number of particles present in a unit cell…

Q: At 292.8 oC, the Kp for the reaction is 4.23⋅10-5:  3A+5B ↔ 1AB What is Keq?

A: From given Keq we can calculate Kp.

Q: What is the main difference between lonic and Covalent Bonds? How does that affect the compound's…

A: In a covalent bond, the partners share a pair of electrons; in an ionic bond, one partner accepts…

Q: What is the product nucleus for each of the following decay processes? (Express your answer as an…

A:

Q: 40.00 mL of 0.350M CH3NH2 is titrated with 0.280M HCl until the end point is  reached. Calculate…

A: Volume of CH3NH2 = 40.00mL  Molarity of CH3NH2  = 0.350M  Kb of CH3NH2 = 5.0×10-4  Molarity of HCl =…

Q: A compound is found to contain 3.622 % carbon and 96.38 % bromine by mass. To answer the question,…

A:

Q: The concentration of chemical solutions can be expressed in several different units of measurement…

A: Given that the 4 mM solution has an absorbance of 1.000 when measured in 1.0 cm cuvette.

Q: 2. How many mi ut HNO3 concentrate are needed to prepare 250 ml of solution, the percent by volume…

A: %V/V    = (volume of solute/volume of solution)x 100 Means 4 ml of HNO3 is present in 100 ml of…

Q: o For the cell shown, the measured cell potential, Ecell, is -0.3575 V at 25 °C. Pt(s) | H₂(g,0.793…

A:

Q: A student dissolves 13. g of glucose (C6H12O6) in 125. mL of a solvent with a density of 1.16 g/mL.…

A:

Q: To harvest blood culture, you add 100ul 10ug/ml colcemid to 10 ml blood culture.     What is the…

A: To calculate final concentration of colcemid in blood culture, we would use dilution law given as :…

Q: Arrange the following substances in order of increasing (smallest = 1, largest = 4) Van't Hoff…

A:

Q: 3. Calculate the amount of energy absorbed when 42 g of water at 21°C heats to 94°C. Did a phase…

A:

Q: Consider a sample of carbon tetrafluoride that contains 1.59 × 1024 atoms of fluorine. Using the…

A: Recall the data from the question, Atoms of fluorine in carbon tetrafluoride=1.59*1024 atoms moles…

Q: Use Charles's law to complete the table. (Assume pressure and number of moles of gas to be…

A:

Q: You need to make an aqueous solution of 0.238 M aluminum chloride for an experiment in lab, using a…

A: Given that, Molarity of aluminium chloride=0.238M  Normalityof aluminium chloride=molarity*n factor…

Q: ter the solubility expression for Mg3(PO4)2(s). sp || [Mg²+ ]³[PO¾¯ ]²

A:

Q: The Keq for the reaction:  A + B ↔ AB is 2.163 What is the Keq for 2 + AB ↔ 2 A + 2 B

A: Some of the important characteristics of the equilibrium constant are  If the equation (having…

Q: For the reaction   Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3   how many grams of…

A: This question is related to stoichiometry. In this question, it is asked to find out how many grams…

Q: According to the following reaction, how many grams of ammlonium nitrate are needed to form 32.7…

A: Given, ammonium nitrate (aq) -----> dinitrogen monoxide (g) + water (l) mass of water (H2O)…

Q: Please Answer Fast: Calculate the initial concentration of F e^ 3+ and SCN^ - , accounting for…

A: We need to calculate the initial concentrations of Fe3+ and SCN- from the given data.

Q: f 355 mL of 0.325 M Pb(NO₃)₂ is added to 255 mL of 0.225 M K₃PO₄, how many moles of Pb₃(PO₄)₂…

A: we have to calculate the moles of Pb₃(PO₄)₂

Q: 10.) What is the amount in grams of H₂0₂ needed to make a 6kg, 3% by mass H₂02 solution?

A:

Q: "0.) What is the amount in grams of H₂0₂ needed to make a 6kg, 3% by mass H₂02 solution?

A:

Q: Choose the letter of the pair considered as ERRONEOUS/INCORRECT. N20 dinitrogen oxide CO2 carbon…

A: Given -> N2O  CO2 P5O9 CCl4

Q: To make 100 ml fixative solution (Methanol : Glacial acetic acid = 3:1), how many ml      methanol…

A:

Q: What would you expect the observed colour of a solution to be, Whose maximum wavelength of…

A:

Q: What is the maximum numbers of electron in an atom that can have the follwimg quantum numbers of n=3…

A: Given n=3, l=2, m=-2 Here n,l and m denotes quantum numbers