Which of the following elements would you expect to have the largest first ionization energy? Select one: Be, Li, K, Ca

Q: If a small amount of a strong base is added to a buffer made up of a weak acid, HA, and the sodium…

A: Buffer solution is the solution which resist the change in pH on addition of small amount of acid…

Q: The reaction Na₂SO4-10H₂O → Na₂SO4 (8) + 10H₂O(g) has a K₂ = 5.38 x 10-12 at 21.3°C What is its K R…

A: For a gaseous reaction, the equilibrium constant can be measured by the concentration of the…

Q: For the cell diagram: Mg(s)|Mg2+(aq)|2H+(aq)|H2(g)|Pt(s) which reaction occurs at the anode?

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Q: A shopper has a choice of yogurt with three different % m/m concentrations of milk fat (MF): 5.9%…

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Q: HEAT + N204 = 2NO2 if the temperature increased, what would be the effect on the equilibrium? also…

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Q: A saturated solution of a metal hydroxide with the chemical formula X(OH)2 was filtered and 25.00 mL…

A: Given :  Volume of saturated solution of X(OH)2 = 25.00 ml  Concentration of HCl solution = 0.0050 M…

Q: Write about lead and its effect on humans

A: Lead (Pb) is a heavy, soft, bluish metal, and occurs in nature in the formof ores. Once Pb is mined,…

Q: The reaction H₂ + 1₂ 2HI has a K,= 46.5 at 23.3°C What is its K₂? R=0.08206 Lan Select one O a…

A: For given equilibrium Reaction -  H2 + I2 <===> 2HI  Equilibrium constant,Kc = 46.5  And…

Q: Using VBT, predict the geometry of the tetraaminocadmium(II) complex ion.

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Q: Draw the Lewis structure for the xenon tetrafluoride (XeF4) molecule.

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Q: Which of the following pairs will make a buffer?

A: A buffer solution is a solution that only changes slightly when an acid or a base is added to it.

Q: Rank the following compounds in order of their basicity, from most to least basic: NH₂ most least…

A: Here we have to determine the decrease order of basic strength of the following given bases.

Q: Be sure to answer all parts. Draw the structure corresponding to each IUPAC name. a.…

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Q: small! X= 5.92x1 CH'J 9) Calculate the pH of a solution that contains 1.00 MHCN (K 6.2 x 10-¹) and…

A: Given: Ka for HCN = 6.2×10-10 Ka for HNO2 = 4.0×10-4 We have to calculate the pH of a solution that…

Q: (SHOW CALCULATIONS) A system delivers 1525 J of heat while the surroundings perform 860 of work on…

A: Given : Heat delivers by system = 1525 J  Work performed by surrounding on system = 860 J

Q: Detailed solution for standard cell potential with RHR and OHR

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Q: write the molecular equation, complete ionic equation and net equation for each reaction.

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Q: 11) A distillation is set up between molecule A (vapor pressure 0.781 atm) and molecule 8 (vapor…

A: Here we have to determine the mole fraction of A and B in the initial liquid mixture. It can be…

Q: Converting between metric units is necessary to solve many chemistry problems. For practice,…

A: CONVERSION FORMULA:   1 kilogram = 1000 grams  1 gram = 1000 milligram 1 kilogram = 106 milligram

Q: 2.-For-the-following-reactions, predict-the-product-of-the-acid-base reaction…

A: Here we have to predict the direction of equilibrium of the following acid -base reaction.

Q: 12. The energy required to excite an atom from level n=1 to level n=2 is 1.43 x 10-17 J. Calculate…

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Q: 3 3.500 mM 4 0.136 mM 5 1.673 mM Hints & Tips Take the 1/100 dilution factor into…

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Q: Discuss the formation of alloys and its importance

A: Metals are compounds that can lose electrons and have high conductivity.

Q: (SHOW CALCULATIONS) Aluminum oxide forms when aluminum reacts with oxygen by the following balanced…

A: Given, 4 Al(s) + 3 O2(g) ➝ 2 Al2O3(s) Observed yield of Al2O3 = 87.3 g mass of Al reacts = 55.0 g…

Q: Identify the two major synthetic challenges associated with converting Sudafed PE (over- the-counter…

A: Methamphetamines are potent central nervous system stimulants, a type of drug. Its consumption…

Q: If you have 155 mL solution of a 0.762 M FeCl3 solution, how many moles of FeCl3 are contained in…

A: Given-> Volume of solution = 155 ml = 0.155 L  (1L = 1000ml) Molarity = 0.762  M

Q: *23-18 The formation constant for the mercury(II) acetate complex is Hg+20AcHg(OAc),(aq) K₁ -2.7 x…

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Q: The following stepwise reactions comprise a mechanism for the acid-catalysed hydrolysis of an ester.…

A: Organic chemistry is branch of chemistry in which we deal with organic reactions such as hydrolysis,…

Q: Find the AHn for the following reaction: 2C(s) + H₂(g) → C₂H₂(g) given the following reactions and…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: 1 I UPAC Name ? glow pla plx on OHI

A: IUPAC nomenclature is used for naming the organic compounds as recommended by international union of…

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: In this question, we will identify first the limiting reagent and then determine the maximum mass of…

Q: Identify the following type of reaction symbolized by the following equation. 2 HClO4(aq) +…

A: Given that, a reaction is 2HClO4(aq) + Ca(OH)2(aq) → 2H2O(l) + Ca(ClO4)2(aq). We have to identify…

Q: For the reaction bellow: CnH(2n+2) + a(0₂ +3.76 N₂) → nCO₂ + (n + 1)H₂0 +3.76a N₂ If the heat of…

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Q: Convert each shorthand structure to a complete structure with all atoms and lone pairs drawn in.…

A: Here we have to write the complete expanded structure of the following given shorthand structure.

Q: Can u answer this 2 questions please and show your complete solution thank you 10. An ethanol-water…

A: (10) Given that -  Volume of ethanol = 25.08 mL Density of ethanol = 0.789 g/mL  Volume of the…

Q: Indicate the coordination number, geometry and the number of oxidation of the metal in each of the…

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Q: sodium chromate combined with copper sulfate Draw a particle diagram for the reactants and…

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Q: Propyl-3-ethyl pentanoate WHAT IS THE 1.Common name 2.Condensed formula 3. Type of Compound and…

A: The condensed formula represents the symbols of atoms, listed in order as they are shown in the…

Q: Rank the following compounds in order of their basicity, from most to least basic: NH₂ most least…

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Q: Which of the ff. statements about the equilibrium constant, Ke is TRUE? 1. Large values mean that…

A: Eqilibrium constant is defined ratio of concentration of products to the concentration of reactant.

Q: Describe stereoselective, regioselective, or chemoselective, the reactions below.

A: In case one we write the most stable structure in chair form, now their is two possibility to attack…

Q: at 0.125 M aqueous solution of a weak base is 9.2% ionized. what is the pH of the solution?

A: Given  Concentration (c) = 0.125 M Percentage ionization = 9.2 % pH = ?

Q: You are given an 18% solution of sodium imidazole. What mass of imidazole (in g) would be in 20 mL…

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Q: A sample of copper absorbs 12.6 kJ of heat, resulting in a temperature rise of 35.0°C, determine the…

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Q: 4HCL+02= 2H20 +2CL2 If 02 is increased, what would be the effect on the equilibrium? Select the…

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Q: If 5.53 g of Ag2O is sealed in a 75.0-mL tube filled with 760 torr of N₂ gas at 32 °C, and the tube…

A: Given :  Mass of Ag2O = 5.53 gm  Volume of tube = 75.0 ml  Pressure of N2 = 760 torr  Initial…

Q: Drive the atomic packing factor for Body centered Cubic structure

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Q: A solution has a pH of 7.6. What does that say about the solution? A) The solution is slightly…

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Q: Hydrogen gas reduces NO to N₂ in the following reaction: 2H₂(g) + 2NO(g) — 2H₂O(g) + N₂(g) The…

A: Given :-  The given reaction is 2H2(g) + 2NO(g) ⇌ 2H2O(g) + N2(g) Temperature = T = 1500 oC

Q: *23-17 The following cell was used to determine the PSO, of a solution: SCE||SO, (xM).Hg,SO,(sat'd)…

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