On average, the concentration of caffeine in drip coffee is about 0.010 g per 28 mL and in espresso coffee is o.040 g per 28 mL. What is the % (m/v) concentration of caffeine in drip coffee and espresso coffee? Select one: O a. 0.357% drip coffee, 1.7% espresso O b. 36% drip coffee, 14% espresso O c. 0.036% drip coffee, o.14% espresso O d. 0.36% drip coffee, o.o14% espresso

Q: H. The molecule shown contains which of the following functional groups? i. An alkyl group ii. A…

A: Since you have asked multiple questions, we will solve the first question for you. If you  want any…

Q: Deduce A.) 160 B. 85 C.) 25 D.) 134 the code Лимвет for CH₂ FCF

A: In 1929, Midgley and Henne created a naming system for halocarbons containing carbon, hydrogen,…

Q: The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by…

A: Given that Radius of strontium atom = 215 pm . Since we know that Diameter = 2 × Radius =2 × 215 pm…

Q: What is the correct increasing order of stretching frequencies for C = C, C = C and C-C ?

A: When atoms are subjected to IR radiations, they absorb the radiation causing changes or spectral…

Q: . C. 6. . 6. . S. .. .. _H3PO4 + КОН → K+ _B₂O3 → HCI + NaOH → C + Na + NaOH + Rb + _C6H6 + S8 → _O₂…

A:

Q: Which picture is correct

A: I think you want the structure of SiF4

Q: Where did the 7 and 1/2 come from

A: pH of salt of weak acid and strong base can be calculated by using direct formula that is used…

Q: C) Eto. ال meo. + + Co₂ Et [11 CHO I 7 CHO 7 e) Mod +- -

A: Use cycloaddition reaction in presence of heat Stereochemistry keep in mind of each reaction.

Q: 843 nm to m

A: Introduction- Conversion factor from nanometer(nm) to meter(m) is as follows- 1nm = 10-9m 10nm =…

Q: Give the IUPAC names

A: Requirement from question: Need to write IUPAC name of given three componds.

Q: Which of the following mechanisms give rise to agglomeration of charged particles? O a.…

A: Formation of lumps, caking, accumulation on treating the powder like substances is called the…

Q: II II IV V II O IV O V оооо о

A:

Q: Archeologists discover a gold crown in an ancient tomb. When they place the crown in a tub of water…

A: In the question , Following datas given - (1) Volume of gold crown, displaced by it on placing it in…

Q: м ОСНЗ Маосиз осно 3

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: D) HCI(g) + 40¿(g) Z ĮCL,(g) + ¿H,O(g) c) 4HCİ(g) + O2(g) 2 2C1,(g) + 2H,O(1) d) C(s) + CO,(g) 2…

A: In equilibrium constant expression partial pressure of gas and concentration of aqueous species are…

Q: Which technique separates components of amixture based on the size of its particles? A. filtration…

A: The technique which separates components of mixture based on particle size has to be given.

Q: 4. Zne) Niraa) Zna) Znr?aa) + Nie) +

A: EZn/Zn2+o = 0.76 V  ENi2+/Nio = -0.257 V   Ecello =   EZn/Zn2+o + ENi2+/Nio = 0.76 + (-0.257) =…

Q: What is the isotope that is used in carbon dating? What is its half-life?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: A 10.61 gram sample of a certain hydrate of copper (II) sulfate, is heated until all the water is…

A: The question is best on experimental technique of determination of molecular formula of the hydrate.…

Q: 4. 17 dm – cm 5. 299 W → TW

A: Consider the given conversion is as follows; 17 dm → cm 299 W → TW

Q: Which submicroscopic representation best depicts lithium sulfate?

A: Step : 1             The required answer for the question is follows as :

Q: 1.65640 НО

A: Note: According to our guidelines we are supposed to answer only one question.  Kindly repost other…

Q: Calculate the amount of material remaining for each of the following substances. 5.25 g Rn-222 (t ½…

A:

Q: Br BUL, DMF

A: Information of question

Q: in ha ion hes andand reductien potental -1.25 V. An engineer proposes using this hafeaction at the…

A: Answer

Q: 8A 1A H 2A 3A 4A SA 6A 7A He Lu Be BCNOF Ne Na Mg 38 48 5B 6B 78 r BB 18 28 AI si PSCI Ar K Ca Sc TI…

A:

Q: 16. What product or products are likely to be formed if this reaction was run with NaOiPr in DMSO?…

A: We have to predict the product or products are likely to be formed as follows in step 2:

Q: Is it supposed to be 10^-14 which would equal 13.4 or 10^24 which equals 23.4?

A: Given :  Kw at 50°C = 3.95 × 10-14

Q: tranegoom Jollawing (TEpine phatoridakan) The to 0.

A: Photo oxidation is a chain process incorporating a large number of chemical reaction. In this…

Q: How do you expresse the volume in cubic angstroms when the atomic radius is 1.76?

A: Given: Atomic radius = 1.76 Ao Note: As, type of unit cell is not mentioned. We are considering a…

Q: a) What is the chemical formula for the following compounds: i) ii) Ammonium Sulfide Nickel (III)…

A: Ammonium Sulfide -----> (NH4)2S Explanation : We know that for writting of chemical compound we…

Q: 22. The density of magnesium is 1.74 g/cm. What is the mass of a magnesium block that measures 2.5…

A:

Q: CrO, но H,0* .CI OH CI 1. DMSO, 2. Et,Cl

A: Given reactions are oxidation reaction of primary alcohols.

Q: Is the underlined part of the macroscopic domain, or the microscopic domain of chemistry ? A carbon…

A: The term macroscopic refers to the objects that can be seen by the naked eyes. Macroscopic is just…

Q: 3* 6. What element corresponds to 1s22s22p63s23p64s23d104p6? 7. Correct the errors in the…

A:

Q: Poly(vinyl chloride) results from the polymerization of H H H A. CH C B. CH₂-C C. CH=C I H CH 3 CN…

A:

Q: 15. Of the following AH a. 03 (g) b. N₂ (g) #0 for c. Hg (1) d. F2 (g) e. Cl₂ (g)

A: The enthalpy of formation of a substance is the enthalpy change associated with the formation of 1…

Q: 3373 А

A: Pyridinum tribromide is a brominating agent. Here bromination of alkene will take place where…

Q: X-rays damage biological molecules. O True O False

A: X-ray very harmful rayes which break the bond of molecule and because of this malufunctions in cell…

Q: Which statement about detecting temperature is TRUE?   Nociceptors detect small changes in…

A: Incorrect options are : 1.)    Nociceptors detect small changes in temperature.    Reason :it…

Q: Determine the volume of a rectangular prism with dimensions of 1.5x102 mm; 2.8x102 mm. and…

A: The volume of the rectangular prism shown in figure can be calculated using the following…

Q: Q20. Determine the direction of the reaction. (draw an arrow to show the real direction) A. Bal2 +…

A: Note: Since you have posted a question with multiple sub-parts, we will provide the solution only to…

Q: What is number 4

A: D) 112 L Given that,    Mass of I2 given = 1269 g  Moles of I2 in 1269 g, n = 1269 g/253.8089 g/mol…

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.