7.144 A green flame is observed when copper(II) chloride is heated in a flame (Figure P7.144). a. Write the ground-state electron configuration for copper atoms. b. There are two common forms of copper chloride, copper(I) chloride and copper(II) chloride. What is the difference in the ground-state electron configurations of copper in these two compounds?

Q: The principal active ingredient in antacids is 0.00200M Al(OH)3 (76.98 g/mol). If all hydroxide ions…

A: Concentration in terms of normality  is .

Q: In the US, alcohol proof is equal to twice the percent of alcohol (ethanol) by volume, so for…

A: Percentage volume by volume: is one of the ways to express concentration of solution. Formula is:…

Q: A solution is prepared by mixing 20.0 mL of methanol with enough water to produce 400. mL of a…

A: Given - - > Volume of methanol mixed = 20.0 mL Volume of the solution formed = 400.0mL Percent by…

Q: (Q51) Which of the following are electrolytes (substances that produce ions when dissolved in…

A: Electrolyte is as substance that produces ion when dissolved in water and then conduct electricity.

Q: For Exercises 11–15, calculate the quantities needed to prepare the solid and semisolid compounds.…

A: The mass of lidocaine cream is = 50 g The concentration of lidocaine cream is = 1.5 % The amount of…

Q: 1.08 ×10-3 mol H2S 57.2 mmol SO3 1.19 mol xenon dioxide  m(H2S) = m(SO3)= m(xenon dioxide)=

A: number of moles are given we have to calculate the mass of the given substances

Q: 3. What volume of concentrated H2SO4 solution would you need to prepare 430 mL of a 0.600 M H2SO4…

A: The concentrated solution is diluted with water to have the dilute solution. To find out the volume…

Q: How much of glucose (C,H1,06) is needed to make 1 L of a 1-M solution? Use details to support your…

A: The molarity is the concentration term which is the number of moles of solute present in per liter…

Q: An unknown sält is freezes at a temperature of-1.4C. What is the formula of the unknown salt? Upload…

A: Formula used: ∆Tf = i Kf m

Q: Ms. Dunne added 2233.8 milliliters of water to 16.2 milliliters of NaOH solution to make a 3.60 x…

A: The equation for calculating molarity is the ratio of the moles of solute whose molarity is to be…

Q: A chemist prepares a solution of silver perchlorate (AgClO4) by measuring out 1.73 kg of silver…

A:

Q: An empty Erlenmeyer flask weighs 241.3 g. When filled with water (density = 0.997 g/mL), the flask…

A: Weight of empty Erlenmeyer flask = 241.3gWeight of flask + water= 489.1 gVolume of water=?Density of…

Q: Compound 2 is a hard grayish-white solid. When tapped gently with a small hammer, a sample fractures…

A: A white grayish solidOn gently tapped with hammer, a sample fractures into the whitish…

Q: 9.0x10-2 M NaBrO. Express your answer using two significant figures. ΑΣφ [OH ] = %3D

A:

Q: 1. A 10.0 mL graduated cylinder to measure 10.0 mL of a 1.00 M CaCl2 solution into an initially…

A: The balanced chemical equation has to be written,

Q: (Q67) What is the freezing point of a solution made from 883.6 grams of benzene to which 56.0 grams…

A:

Q: (Q66) At what temperature (°C) will a solution that contains 70.4 grams of the nonelectrolyte…

A: Mass of ethylene glycol = 70.4g  Mass of water = 632 g  Boiling point of pure water = 100°C

Q: How do you convert 0.005 M CaCO3 to mg CaCO3/liter?

A: we have to convert 0.005 M CaCO3 to mg CaCO3/liter

Q: What is the mass of 1 mL of pure water? How could this information be used to check the accuracy of…

A: Density of a substance is defined as its mass per unit volume.

Q: If 0.9871 g of the primary standard KIO3 is used to prepare 500.00-mL of the standard solution, how…

A:

Q: A lab prepared a solution of sulfuric acid with a volume of 5.0x10-4 m3. The solution is further…

A: Molarity is defined as the number of moles of solute dissolved in 1 L of solution. The unit of…

Q: Calculate the volume in milliliters of a 1.3 mol/L iron (III) bromide solution that contains 125.g…

A:

Q: How would you prepare a 200 mL solution of a 0.761 M solution of KCI? O Add 15.2 g KCI to 200 mL…

A:

Q: A hospital saline solution is analyzed to confirm its concentration. A 50.0 mL sample with a mass of…

A:

Q: NażSO4(aq) + Mg(OAc)2(aq) 2NaOAc + MGSO4 Complete ionic: 2Na^+ (Aq) + SO4^-(aq) +Mg^2+ (aq) + 20A¢^-…

A: We can classify reactions as : Single replacement reaction  Double displacement reaction Combustion…

Q: A solution has a concentration of 0.22 M KBr and a volume of 0.020 L. It is then diluted to a…

A: We know the dilution equation for a solution is => M1V1 = M2V2 where, M1 is the concentrated…

Q: In a lab, 0.80 L of water is added to 50.0 mL of 17.4 M stock solution of humic acid (C9H9NO6). What…

A: To calculate the concentration of resulting solution after dilution with water, we would use…

Q: Water is analyzed in wine by the Karl Fisher method with the following reaction: 12 + SO2 + 2H₂O 2HI…

A:

Q: Could someone walk me through how to solve this particular kind of equation, please? 7.2% x V1 +…

A: 7.2% × V1 + 0.9% × V2 = 5% × 350mL

Q: If 21.1 grams of an aqueous solution of copper(II) fluoride, CUF2, contains 3.81 grams of copper(II)…

A:

Q: A solution is prepared by mixing 9.61 grams of benzene (C6H6) in water to create a solution total…

A: Molarity(M) of a solution is defined as the number of moles of solute per 1000mL of the…

Q: 8) The average adult human body contains about 4.7 liters of blood with a hemoglobin concentration…

A:

Q: 2.90 x 10^22 formulaunits of NAOH x 40.0g of NAOH/6.022 x 10^23

A: Given that.,Number of formula units of NaOH = 2.90 x 1022We know that.,Number of formula units in…

Q: Compare picture I and II and choose: A = If the indicated property is greater in picture I than in…

A:

Q: How many mL of liquid mercury with a density of 13.6g/mL must you dispense to have 1.56 x 10-3 mol

A:

Q: Blue dye can be decolorized by treatment with bleach. The kinetics of the reaction can be studied by…

A: Since first two questions are related to each other and the third one is different. Hence, we solve…

Q: A laboratory technician purchased 250. mL of 15.4 mol/L nitric acid. She uses this concentrated…

A: Given that : Initial volume (V1) = 250 mL = 0.25 L Initial concentration (M1) = 15.4 mol/L Final…

Q: What is the molarity of a solution containing 367.09 g of NaOH in 3.45 mL of the solution?

A:

Q: If 2.03 g of CuNO3 is dissolved in water to make a 0.640 M solution, what is the volume of the…

A:

Q: What is the molarity of the caffeine solution B? Molecular Weight of Caffeine 1942 grmol A Take 20…

A: Given, Note: 1000 mL = 1 L Solution A Molarity of the solution A = 5 × 10-4 M = 5 × 10-4 mol/L…

Q: What do you get if you subtract 0.250 L of ethanol from 0.250 L of water at room temperature?

A: Mixture of 0.250 litre of ethanol and 0.250 litre of water comes to 0.500 litre.

Q: What is the concentration in M of a NaCl solution prepared to a total volume of 608.8 mL using 38.18…

A:

Q: 155 mL solution X STARTING AMOUNT 155 mL solution x 0.762 mol FeCl 0.762 L solution x 0.762 mol-FECT…

A:

Q: n impure sample contains 0.78 g of impurities and 4.95 g of benzoic acid.  The sample is dissolved…

A: Grams of the impurity that will crystallize out when the solution has cooled = 0.17 g

Q: Chlorine bleach is a solution containing sodium hypochlorite and water.  The typical bottle of…

A: Given that  mass of sodium hypochlorite = 3.25 g concentration mass by volume = 5.5 %

Q: Grams of solute per 100 g H.O 130 120 110 100 90 80 70 60 50 40 30 20 NH37 10 NaNO3 KCIÓS FONX NHẠC…

A: “Since you have posted multiple subparts questions, we will provide the solution  only to the first…

Q: (Q66) At what temperature (°C) will a solution that contains 78.4 grams of the nonelectrolyte…

A:

Q: Pill 1 Pill 2 Mass percent of FESO4 7 H,O (%) Average mass percent of FESO, 7 H2O (%) 6. unrounded…

A: Mass percent of a substance can be calculated as follows; Mass percent=Mass of substanceTotal…

Q: . Fourth and Gemini was handed by their laboratory instructor a pure gray liquid called CHINZILLA.…

A: NOTE -"Since you have asked multiple questions, we will solve the first question for you. If you…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.