Calculate the most probable speed for hydrogen molecules at 0C. Select the correct response: 1200 m/s 2750 m/s 1500 m/s 1900 m/s

Q: An analyte is found to elute from a reversed-phase column with a retention factor of 12.5 when a 20%...

A: Given data  :- At 20% ethanol and 80% water concentration retention factor = 12.5

Q: Unsaturated hydrocarbons are characterized by the presence of: [select all that apply] at least 1 tr...

A: We have to predict the correct option for unsaturated hydrocarbon.  

Q: balance

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any spe...

Q: If 87.5 mol of an ideal gas is at 4.77 atm at 25.70 °C, what is the volume of the gas? V = L

A: Answer: This question is based on ideal gas equation which is shown below: PV=nRThere:P=pressure of ...

Q: At 850 K, the equilibrium constant for the reaction 2 SO, (g) + 0,(g) = 2 SO, (g) is K. = 15. If the...

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Q: Enter your answer in the provided box. One of the reactions that occurs in a blast furnace, in which...

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Q: 21. A mountain is 4500 M high. Assuming Paust- 2700 kg/m' and pmante - 3300 kg/m what is the depth o...

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Q: The following chromatogram is obtained for a mixture of substances X and Y. The retention factor for...

A: Retention factor: The ratio of distance traveled by the substance to the solvent is known as the ret...

Q: Which of the following statements are always true for a reaction at equilibrium? I. The rate of the ...

A: In the question it is asked to state which statement is true for a reaction at equilibrium.

Q: Assign oxidation numbers to the elements in the following compounds: NH4HCO3 F2 Ca3(PO4)2

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Q: Liquid octane (CH; (CH,),CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

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Q: The graph below shows the concentration of reactants and products in a chemical reaction that reache...

A: Given:-   We have to explain the nature of graph which is representing equilibrium . 

Q: Use heats of formation data bellow to calculate AH° for the reaction: Ca(OH)2 (s) + H2S04 ()CaSO4 (s...

A: Standard change in enthalpy of a reaction is equal to the difference in the heat of formation of pro...

Q: While they absorb moisture and generate heat, 12 g of Wool fibers were used to warm up 38 g of water...

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Q: What is the correct name for 2-ethyl-3-methylpentane? Group of answer choices 3,4-dimethylhexane tha...

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Q: In a normal neuron, consider the following ionic concentration of cation X: Ion inside: 200mM Ion ...

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Q: nucleus  and electrons in each shell for Se-76 and U-235

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Q: A cup of tea containing 400.0 g of liquid at 20.0°C was heated. If 58.5 kJ of heat was absorbed by t...

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Q: Explain a condition that could be changed in a system that would increase the amounts of products at...

A: The condition that could be changed in a system to increase the amounts of products at equlibrium  i...

Q: calculate the dose of injectable anesthetic for buttons, who weighs 12.5 ib. the dosage of ketamine ...

A: A question based on dimensional analysis that is to be accomplished.

Q: Which of the following is the correct expression for the pressure based equilibrium constant for the...

A: Write expression of kp ---

Q: The following chromatogram is obtained for a mixture of substances X and Y. Calculate the separation...

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Q: Which of the following structures represent 3-ethylhexane? Group of answer choices   CH3CH2CH(CH2CH3...

A: IUPAC is an acronym for International Union of Pure and Applied Chemistry, which is a globally recog...

Q: h heat is

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Q: Injection of ethane, propane, butane, pentane, and hexane on a squalene column under isothermal cond...

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Q: 3. Use a titration between an acid and a base to answer the following: a. Mole to mole ratio of acid...

A: The reaction between an acid and base is called neutralisation reaction in which salt and water is p...

Q: answers with the correct number of significant figures. Use additional paper if needed. mumenTcal Ex...

A: The solution is as follows:  

Q: certain bottle of mineral water has a stated chloride concentration of 28 ppm. How many mg of chlori...

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Q: Which of the following statements about the dissolving process is accurate?   Select one: a. Surfact...

A: The correct option is as follows:  

Q: For the reaction 4 PH, (g) = 6 H,(g) + P,(g) the equilibrium concentrations were found to be [PH,] =...

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Q: 4. The combustion of octane (C8H18) gas. 5. The combustion of decane (C10H22) gas.

A: 4. Combustion of octane gas can be written as  C8H18 (g) + 25/2 O2(g)-------> 8CO2(g) + 9H2O(g)  ...

Q: 4.49 Small quantities of hydrogen gas can be prepared by the following reaction: Zn(s) + H;SO4(aq) →...

A: Given, Zn(s) + H2SO4(aq) ➝ ZnSO4(aq) + H2(g) Molarity of H2SO4 solution = 6.00 M = 6.00 mol/L Volume...

Q: Arrange the following in decreasing order of stability. Explain your answer. lal CH3 (b) CH3 CH2CH3 ...

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Q: 15. When hot tea is poured into both a steel cup and a styrofoam cup, the steel cup quickly feels ho...

A: Steel cup is a good conductor of heat and styrofoam is a bad one as explained below . Hence the obse...

Q: A major component of gasoline is octane (C,H2). When liquid octane is burned in air it reacts with o...

A: Octane is Burn in presence of oxygen. 

Q: Draw the compound: 1. Methylbutanoate Systematic name of the compounds: 2. CH3C=CC=CCHCH2CHC=CH CH2C...

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Q: Starting with SEVEN TONS of the ore of pitchblende, Pierre and Marie Curie isolated a few milligrams...

A: Polonium-218 is a radioactive element. It can undergo both alpha and beta decay. Alpha decay is a ty...

Q: Which of these structures shows how the pictured molecule will look after it is flipped over horizon...

A: Observations and conclusions: 1) Upon flipping, the atoms/groups on the axis would just change their...

Q: 2) 2,3-dibromo-5,6-dichloroheptane Expanded Structural Formula Condensed Structural Formula Line/Ske...

A: We have to draw the types of organic formulas (expanded and condensed structural and line/skeleton f...

Q: Enter your answer in the provided box. A volume of 36.2 mL of a 0.568 M Ca(NO3)2 solution is mixed w...

A: The concentration of the solution formed by mixing of two or more solutions containing the same solu...

Q: The nitrogen-13 isotope is below the belt of stability.  Nitrogen-13 emits positrons.     Write the...

A: positron: A positron is a antimatter of electron , it is identical in mass has an opposite charge of...

Q: 4. When the following redox reaction is correctly bala Cl2 + MnO2 (s) → CIO3 + Mn2+ (aci what is the...

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Q: he kinetics of an enzyme-catalyzed reaction is measured in the absence and presence of two potential...

A: The answer of the following question :

Q: The value of the equilibrium constant for the following reaction is 224 at a given temperature: N2(g...

A: We have to predict the equilibrium constant for given reaction.  

Q: What is the correct IUPAC name for the following compound?   Group of answer choices 3,3-diethyl-6-...

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Q: Concentration of DDT (molar mass= 354.49 g/mol) in groundwater sample is found to be 0.030 mg/250.0 ...

A: We have to predict the concentration in mmol/L.  

Q: Phosphorus pentachloride decomposes according to the chemical equation PCI, (g) = PCI, (g) + Cl, (g)...

A: Given reaction is :  PCl5 (g) <-----------> PCl3 (g) + Cl2 (g), Kc = 1.80  Moles of PCl5 (g) =...

Q: For a theoretical yield of 5 g and percent yield of 53.7015%, calculate the actual yield for a chemi...

A: Given :-  Theoretical yield = 5 g  Percent yield = 53.7015%  To calculate :-  Actual yield (in g)

Q: Suppose a 500. mL flask is filled with 0.20 mol of NO and 0.10 mol of NO,. The following reaction be...

A: We have to calculate the equilibrium concentration of NO3.  

Q: At a certain temperature and pressure, 1 L of CO, gas weighs 1.35 g. What is the mass of 1 L of CH, ...

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