Which has a higher root mean square velocity, H2(g) at 150 K or He(g) at 650K?

Q: In the synthesis of sulfanilamide, an intermediate reaction using 5 g of acetanilide (MW:135.2, dens...

A: The percentage yield can be calculated by the theoretical yield and actual yield. It can be written ...

Q: Question 16 How many grams of Mg3(PO4)2 can dissolve in 500 mL of water given that Mg3(PO4)2 has a K...

A:

Q: How many moles of H are in 8.45 moles of C6H12O6? - Balance the following chemical equation: Al(NO...

A:

Q: I need some help solving this problem: What is the spectroscopic terms of the electronic configurati...

A:

Q: Tungsten Carbide (WC), used in making tools and jewelries, is produced by the reaction of tungsten h...

A: Given, Tungsten carbide (WC) is produced from tungsten hexachloride (???6) , ?2 and ??4 Mass of ???6...

Q: When hydrogen chloride reacts with magnesium, magnesium chloride and hydrogen gas are formed. 1. Wri...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for ...

Q: Label the diagram according to the components and processes of an alkaline battery. Drag the appropr...

A: In the electrochemical cell, the chemical energy is converted into electrical energy. The addition o...

Q: B. Dilution of Stock Solution

A: The diluted solution was prepared by adding water to stock solution.

Q: product

A:

Q: stion 6 of 10 Write the balanced molecular equation and net ionic equation for the neutralization re...

A: For the given reaction, we can expect salt and water as two major products. 

Q: What would be the consequence to phosphorylcholine binding to the Ab if the pH was lowered from pH=7...

A: The binding of protein is affected by various parameters such as temperature, pH, inhibitors, etc. T...

Q: Answer the following questions about Rare Earth Elements:     a. List the Lanthanide and Actinide el...

A:

Q: BQ6 Consider the reaction below: Reagent 1: CI Reagent 25 BQ 6.1 Homework Provide the chemical formu...

A:

Q: 4/ ________ is isoelectronic with scandium. Sr2+ Mn5+ Mn4+ Mn4- Mn

A: ANS. MN+4

Q: A. Determine the concentration of the glucose stock solution in mg/mL. B. Complete the table above b...

A: For preparation of stock solution, 500 mg of glucose was taken to form 25 mL of the solution.

Q: 3) What volume (in mL) of guanidine, CH5N3, is required to prepare 250 mL of the following solutions...

A: Density of guanidine (CH5N3) = 1.18g/ml Mol. mass of guanidine = 59.072g/mol (Calculated according t...

Q: а. -TI- b.

A:

Q: r the observation that only the ortho-isomer appeared in the distillate and not the para isomer.

A:

Q: Equilibrium constants for reactions can be determined from partition functions. For a generic reacti...

A: The equilibrium constant for the following reaction at 298 K is needed to be determined.  H2O + DCl ...

Q: which material (aluminum , copper , lead) increase the temperature of water by the greatest amount o...

A:

Q: A 250 mL solution of 2.5 x 10 M AGNO3 is mixed with 150 mL of 5 x 10 M Na 3PO4- What is the value of...

A: Ans. (a) Value of Q (reaction quotient): The given compounds' reaction is 3AgNO3+Na3PO4 → Ag3PO4+3Na...

Q: 19. Provide a complete curved arrow mechanisms that accounts for the transformation below. Be sure t...

A:

Q: Question 6 For the reaction S20g -2-31-25042-13, solve the rate law r=k{S20g2(r; x = y = Expt (S20g ...

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction occur...

Q: Current Attempt in Progress The reaction of sucrose with water in an acidic solution is C12H22011 H2...

A: The concentration after 6 hours can be calculated as

Q: What is the pH of a 3.0 x 10 M solution of CoHsNH2 (Kb= 4.3 x 1010? What is the percent error in you...

A: As PhNH2 is an weak base,it can be calculated using a formula.

Q: For a particular process, if the change in enthalpy is -69.8 kJ and the change in entropy mol kJ )? ...

A: Given :-  ∆H = -69.8 kJ/mol  ∆S = 84.3 J/mol.K  T = 61°C  To be calculated :-  ∆G (in kJ/mol)

Q: Calculate the osmotic pressure for a solution that is 0.6 molar in sodium chloride and 0.5 molar in ...

A: Osmatic pressure = i x C x R x T i = the no. of dissociated ions C = concentration R = gas constant ...

Q: A chemist generates the titration curve shown by slowly 12 adding 1.0 M sodium hydroxide (NaOH) to 1...

A: Titration curve is the graph in which volume of titrant plotted against pH.

Q: 1) Hydration of butene-1 (formation of X1) 2) Dehydration of X1 (Formation of X2)

A: Hydration means addition of water molecule to unsaturated compounds and dehydration means eleminatio...

Q: Addition of ammonium bisulfate In addition to the H,S already present in the flask, solid NH, HS is ...

A:

Q: A 30.00 mL sample of 0.15 M HNO3 is titrated with 0.20 M KOH. Calculate the pH when 25.00 mL of titr...

A:

Q: The colorless gas N2O4 decomposes to the brown gas NO2 in a first order-reaction: N2O4(g) → 2 NO2(g)...

A:   

Q: Given the balanced reaction 4A = B + 3C, what is the ΔG of the reaction if:   ΔHf (J/mol) ΔS (kJ/m...

A:

Q: a the initiation step of the free radical chlorination of methane, which of the following occurs? O ...

A: Free radical chlorination of methane is done by sunlight or say UV rays which cleaves the Bonds homo...

Q: A.) If 11.3 g of KBr (MM = 119.00 g/mol) are added to a 500.0 mL volumetric flask, and water is adde...

A: We have to predict the  A. Concentration  B. Molarity  C. Moles   

Q: SPECIFIC most signifant object made from

A: In this question we have to explain some examples of specific most signifant object made from metal ...

Q: What is the concentration of (OH] in this solution? Calculate your answer in M, then provide the exp...

A: Given data :-  

Q: NaH BH3 LIAIH4 H2

A:

Q: Question 7 The decomposition of certain chemical X is a first order reaction. After 2 hours, 60 perc...

A:

Q: CH3 CH2 - CH2. - CH - C HO, CH3 - CH2 - CH,

A: The drug given in the question is valproic acid.

Q: For the equilibrium reaction PCl5(g) PCl3(g) + Cl2(g), the equilibrium constant Kp is 0.497 at 500K...

A:

Q: What is the shape of a molecule with the central atom having two shared and two lone pairs of electr...

A:

Q: Determine which will lower the freezing point of water more: 225.0 g of KCl or 225.0 g of Na2SO4? As...

A: We know that., Change in freezing point = freezing point of pure solvent - Freezing point of solutio...

Q: Question 2 Given a Keg of 3.47 x 1018 at 298 K, will the corresponding AG° be posițive or negative? ...

A: Given that, the Keq is 3.47×1018 at 298 K. I.e., Keq =3.47×1018. T = 298 K. We have to tell the sign...

Q: 4. The molecular orbital (MO) energy diagram for cyclopentadiene (compound pictured right) shows fou...

A: I've drawn all four pi orbitals, just to make you understand. 

Q: 4) Which of the following reagents would be ideal (low cost, environmentally safe) to produce 1? A) ...

A:

Q: Glucose in stored in the body as glycogen.  Consider the oxidation reaction for glucose with oxygen...

A: Oxidation reaction for glucose with oxygen is ., C6H12O6 + O2 = CO2 + H2O Balance Oxidation reaction...

Q: Which statement is true before the stoichiometric point of a weak acid with a strong base? A buffer ...

A: Given Titration of weak acid vs strong base

Q: How could a carbon atom could become a nitrogen atom? Explain and be specific in your explanation

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is ...

Q: A certain weak base has a ?b of 8.50×10−7. What concentration of this base will produce a pH of 10.2...

A: 6.)  To calculate the concentration of weak base, we would use the given value of Kb and pH. We woul...

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.