The mass of one methane molecule is 2.7×10−23 gram. Find the mass of 90,000 molecules of methane. Express the answer in scientific notation.

Q: Please give IUPAC name for the structure below! 0 Hi CN N3 4 OCH₂CH3

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Q: If the bicarbonate ion (HCO3-) concentration in a sample of blood is 0.270 M, determine the carbonic…

A: Concentration of carbonate ion = 0.270 M Ka of carbonic acid = 5.3×10-7 H2CO3 (aq) ⇌ HCO3- (aq) +…

Q: Identify the strongest oxidizing agent from the following half-reactions. * +1.22 V MnO₂ (s) +…

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Q: Which dye can analyze pH in the range of 6.0 – 7.6 and has a final color reaction of green when…

A: Which dye can analyze pH in the range of 6.0 – 7.6 and has a final color reaction of green when…

Q: The correct answer for the addition of 7 g + 2.20 g + 1.311 g is:

A: For addition, check the rules for significant figure related to the addition and use it in the given…

Q: 1. Construct a Latimer diagram for element X 2. Construct a Frost-Ebsworth diagram for element X

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Q: For the following reaction, 4.36 grams of butane (C4H10) are allowed to react with 20.5 grams of…

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: Exactly 6.00 ml of acetic acid (density = 1.05 g/mL), MW=60.05) was added to a 1-liter volumetric…

A: 6.00 mL of acetic acid was added to a 1 L flask and filled with distilled water . A conductance…

Q: "For an endothermic reaction, the activation energy will always be greater than the enthalpy change…

A: given endothermic reaction exothermic reaction

Q: One dietary supplement capsule weighing 4.90 was ground into a fine powder. Two portions of the…

A: Standard addition involves adding different amount of analyte to a standard amount of sample and…

Q: Select the highest-priority atom according to Cahn-Ingold-Prelog rules. ON B Ос

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Q: A chemist fills a reaction vessel with 6.56 atm methanol (CH3OH) gas, 5.57 atm oxygen (O₂) gas, 3.98…

A: Given :  Pressure of methanol = 6.56 atm  Pressure of oxygen gas = 5.57 atm  Pressure of carbon…

Q: The color dye that is positively charged. a)    Eosin Red                                         c)…

A: A dye is a coloured substance that can be applied to another substance giving it a coloured…

Q: Titanium-51 decays with a half life of 6.00 minutes. You have a bottle of titanium-51 that reads 452…

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Q: A 0.4 m rod of a metal elongates 0.48 mm on heating from 20 to 100°C. Determine the value of the…

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Q: How many grams of ammonia should be added to 500mL of IM ammonium chloride to give a pH 9? Ka…

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Q: A. What is the cell notation of the set-up? B. What is the standard cell potential (Eºcell)? C. If…

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Q: The mechanism proposed for the oxidation of iodide ion, I, by the hypochlorite ion, CIO, in aqueous…

A: In the multistep reaction, the slowest step is the rate determining step of that reaction.

Q: The decomposition of nitramide, O₂NNH₂, in water has the chemical equation and rate law O₂NNH₂(aq) -…

A: We have to determine the correct relation for k

Q: Write the complete mechanism with arrows of the following reaction. BI U Σ W A G

A: Pericyclic reaction occurs in presence of heat or light.

Q: Name the probable monomers for the following polymer: H CH3H CH3H CH3H F HFH F H |…

A: In this question, we will identify the monomers and then name of the monomers.  You can see the…

Q: 7- What are compounds I and II for the following reaction? Benzaldehyde + [Ag(NH3)2]NO3 → I+ 2Ag(s)…

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Q: write the basic equilibrium equation for NH3

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Q: Consider the Haber process at 500 °C: N₂ (g) + 3H2 (g) → 2NH3 (g) with a AH of reaction equal to −92…

A: Le chatelier principle says that equilibrium will shift in such a way so as to undo the effect of…

Q: A. Tell which of the following species is the strongest oxidizing agent. With solution each Ce. Brz.…

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Q: 1. which of the following sets of quantum numbers are not allowed? for each set that is not allowed,…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: How many milliliters of 1.5% alcoholic dimethylglyoxime should be used to provide a 36.0% excess…

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Q: In the contact process:                                                                       DH =…

A: Given data In the contact process:                                                      DH = -197…

Q: 2. a. Determine the standard heat of formation, AH for the following reaction using the Data from…

A: Dear student , since you have posted multiple parts questions we will allow to solve only first…

Q: Question 7 The subdity product constants, A at 25°C for pounds fron) cartonate, FeCO₂, and cadmium)…

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Q: he chemist (first and last name) that the catalyst PCY3 1.CI Ru CI Ph PCY3

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Q: Shown here is a splitting diagram. What geometry does this splitting diagram represent? dx2-y2 dxz…

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Q: Chemistry all Zain JO 1:32 AM The H-NMR and IR spectra below represent which of the following…

A: 1) a. BENZYL ALCOHOL ( C6H5CH2OH) FrFrom nmr  5 hydrogen multiplet of hydrogens of benzene ri.g  2H…

Q: 5. Use the titration curve to the right to answer the following questions A. What is the pH at the…

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Q: When I submit this answer to my homework software I receive the message "Your mole ratio between H2…

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Q: 5. A 295 g sample of unknown metal is at an initial temperature of 13.00 °C absorbs 75.0 kJ. The…

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Q: Which of the following precipitates when 2+ added to a Ca²+ solution? a. K₂CO3 b. NaCl c. HNO3 d.…

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Q: Which of the following is considered an atomic solid? CsI,Pt,H2,None of these is an atomic solid,I2

A: We need to select the substance that is an atomic solid

Q: 1. CL was tasked to identify the white solid inorganic salt that Dr. Yang gave her. From her…

A: We have two different salts, Zn(CN)2(s) and AgSCN(s) to compare and find the unknown salt out of…

Q: Write the nuclear equation for the beta decay of fluorine-19.

A: we have to write nuclear equation for the beta decay of F-19

Q: Synthesize the given compound by Claisen condensation. Show all the required steps and reagents.…

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Q: Rewrite the equation as thermochemical equations in two different ways to include the heat…

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Q: 1--The solution of substance (X) is completely ionized in water, its pH value is (10), so its…

A: Dear student , since you have posted multiple questions we are allowed  to solve only first question…

Q: A batter hits a baseball, which travels 1.370 x 102 m away. How far did the ball travel in feet (ft)…

A: Given,  A baseball travels distance = 1.370×102 in.  The distance in ft(feet) units is:

Q: [Report answer to correct number of significant figures] Convert 25.9 lb/in to g/cm [1kg = 2.205 lb;…

A: Here we have to convert 25.9 lb/in into g/cm . This can be done by unit dimension analysis.

Q: Draw the best Lewis structure for the formula given [CH2N]+

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Q: At 571 mm Hg and 323 K, a gas sample has a volume of 2.45 mL. What is the final pressure (in mm Hg)…

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Q: The element belonging to group 15, period 3 is named

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Q: Arrange the following acids in order of decreasing acid strength, 1 being the weakest and 4 being…

A: Ka is the dissociation constant of acid. Higher the value Ka, more is its dissociation so stronger…

Q: According to the following reaction, how many grams of iron (II) oxide will be formed upon the…

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Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.