A sample of gas mixture from a neon sign contains 3.32 x 10-2 mol Ne and 4.65 x 10-2 mol Kr. What are the mass percentages of Ne and Kr in the gas mixture? % Mass percentages of Ne = % Mass percentages of Kr

Q: Calculate the degree of unsaturation. Assign the relevant peaks in the IR spectrum. Assign the peaks...

A: The structure of the following is:  

Q: 5. Give the balanced molecular equation for the reaction of sodium chromate (Na2CrO4) solution with ...

A: 5. Balanced molecular equation between sodium chromate (Na2CrO4) and aluminium nitrate [Al(NO3)3] is...

Q: Assessment 1 Direction: Analyze the following situations below. Then, answer the following questions...

A: 1-Ana has skin problem of dry skin and acne from her high school.The ingredients present for her ski...

Q: CH, CH2 CHQ CH2 UH2 CH2 2 CH3 - C- oH 3. CAz CH2 CH, C-0

A: Given : We have to highlight the functional group present in the compound.

Q: Draw the major product of this reaction. Ignore inorganic byproducts. CN 1. LIAIH4 (excess) 2. H3O* ...

A:

Q: 6. To what temperature can a 20 dm oxygen pressure flask containing 1.6 kg of oxygen be heated if th...

A: Q6)  

Q: A pharmacist received a prescription calling for 30 capsules, each to contain 1/200 gr of nitroglyce...

A: Given,  A pharmacist received a prescription calling = 30 capsules Each capsule contain = 1/200 gr o...

Q: The following reaction is at equilibrium at a pressure of 1 atm, in a closed container: NaOH(s) + CO...

A: Le Châtelier's Principle doesn't apply for a reaction involving two different phase such as solids a...

Q: Which of the following is the most correct order of using a ptl meter to measure the pH of a solutio...

A: The most correct order of using PH meter to determine the pH of a solution is given below

Q: The titration curve shown was obtained for the titration of a 0.297 g sample of a solid acid with 0....

A: 1.)  The volume of KOH needed to reach equivalance point can be determined from the given titration ...

Q: A 1.065 g sample of magnesium oxide of 84.736% were treated with 50 mL of 1.017 N sulfuric acid, and...

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only. ...

Q: A solution is labeled 0.0404 M Sr(OH), Complete and balance the dissociation of Sr(OH), into ions in...

A: pH of solution is defined as negative logarithm of hydrogen ions.

Q: Use the following energy diagram for a two-step reaction as reference. В Po te nti A al Reactant En ...

A: The energy diagram given is,  

Q: Please explain why this is non aromatic with 5 pi electrons Me, B.

A:

Q: MOLECULAR COVALENT SUBSTANCE LONDON DIPOLE- HYDROGEN IONIC METALLIC NETWORK DISPERSION DIPOLE BOND 1...

A: Within any two molecules, there is London dispersion forces.  Polar compounds has Dipole-dipole inte...

Q: Calculate the heat needed at 0oC to make each of the following changes of state. Indicate whether he...

A: Given : We have to calculate the heat needed for the given processes.

Q: cell potential

A:

Q: Experiment: UV-Vis Spectrophotometry and Beer’s Law Absorption of Light of Dyes in Beverages   5 ...

A: this is an example of dilution law here we are required to find the concentration of yellow dye in t...

Q: The following data were acquired in an iodination experiment involving acetone. Reaction times are f...

A:

Q: F ОН N. HN.

A: A functional group is an atom or group that determines the properties of a compound.

Q: A compound has an empirical formula of CFBrO and a molar mass of 254.7 g/mol. 1) What is the value ...

A:

Q: Determine the pH during the titration of 67.0 ml of 0.375 M formic acid (K, - 1.8x10 4) by 0.375 M K...

A: a.)  Before addition of KOH, there is just formic acid solution , so we would use ionization equatio...

Q: 1. Half-fill a 50-ml beaker with water. Warm gently with a small flame but do not boil. What appears...

A: Evaporation is the phenomenon where the liquid turns into a vapor.

Q: dentify each of the following changes of state as evaporation, boiling, or condensation: a. At 100oC...

A: Since you have posted question with multiple subparts as per guidelines we can answer only three . I...

Q: Deconstruct the given Diels–Alder adduct. Draw the reactants (A and B), in any order, that would be ...

A: In diels alder reaction , there are two reactant which combines to give an adduct.  The two reactant...

Q: 6) The following set of data was obtained by the method of initial rates for the reaction: 2 HgCl2(a...

A: We have to predict the rate law.  

Q: Predict the product of the following reaction. A OH HNO3, H2SO4 CI- B Name the organic product witho...

A:

Q: What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt b...

A:

Q: Let us now pretend that you are a cosmetic chemist. Since you already know the different cosmetic in...

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Q: The boiling point of sulfur is 444.6°C. Sulfur’s melting point is 593°F lower than its boiling point...

A:

Q: Arrange the following in order of highest to lowest concentration of OH ions, i.e., the most basic t...

A:

Q: The rate constant of a certain reaction is dependent to the activation energy and collision.  True ...

A:

Q: name the compound

A:

Q: Questions 1. If one aspirin pill contains 325 mg of aspirin, how many aspirin tablets could be made ...

A: Number of aspirin tablet = =total weight of aspirin ÷ weight of aspirin required for 1 tablet 

Q: Use the following two half-reactions to write balanced net ionic equations for one spontaneous react...

A:

Q: voltaic cell consists of a Pb/Pb^2+ half-cell and a Cu/Cu^2+ half-cell at 25 ∘C. The initial concent...

A: Given : We have to calculate the cell potential.

Q: A mixture consisting of 11.3 g of calcium fluoride, CaF2, and 10.8 g of sulfuric acid, H2SO4, is hea...

A:

Q: Obtain the moles of substance in the following. a. 2.57 g C mol b. 8.88 g Cl2 mol с. 74 g CH10 mol d...

A: Calculate moles of each substance---

Q: When cobalt(II)chloride dihydrate is dissolved in water or ethanol what species are present in both ...

A: when cobalt(II) chloride dihydrate is dissolved in water, the species  water is present. 

Q: What is mass defect and binding energy for C14 nucleus

A: The mass defect and binding energy can be calculated as

Q: NH2

A:

Q: When sodium acetate is added to a solution containing sodium citrate, the equilibrium will shift to ...

A: Sodium acetate is a basic salt as it formed from a strong base Sodium hydroxide and a weak acid acet...

Q: If a 1.065 g sample of magnesium oxide of 84.736% were treated with 50 mL of 1.017 N sulfuric acid, ...

A:

Q: If the cell emf of a Zn-Cu cell is 0.80 V when the concentration of Zn2+ is 2.0 M, what is the conce...

A: The emf of Zn-Cu cell = 0.80 V  Concentration of Zn2+ = 2.0 M  Concentration of Cu2+ (in molar) = ? 

Q: According to the following react 2AGNO3 (aq) + CuCl, (s) What would you multiply noles of silver nit...

A:

Q: 3. Propose a possible synthetic pathway for the following reaction. multiple steps

A: Bromination is electrophilic aromatic substitution reaction where benzene ring acts as nucleophile. ...

Q: Consider the following rate law: rate = k[acetone][l2]°[H*]ª What effect would decreasing the concen...

A: Given, Rate law expression: rate = k[acetone]1[I2]0[H+]1 Here, k = rate constant [acetone]1 = concen...

Q: Calculate the pH of a 2.4 x 105 M HBr solution at 25 °C. O 2.45 O 11.69 O 4.62 O 9.38

A:

Q: Gravimetric analysis is a quantitative method that involves measurement of volume of a solution of k...

A:

Q: Predict the favored product of each of the following reduction reactions. If the product is chiral, ...

A: The reactions given are,  

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".