Suppose the O, gas evolved by a certain chemical reaction taking place at 50.0 Cis collected over water, using an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 118. ml.

Q: 7. Thermometers used to be made from mercury inside a glass tube (they now use alcohol instead of…

A: The change in length/area/volume of a solid/liquid/gas observed per unit change in temperature.  The…

Q: Number 6

A: Meters (m) and miles (mi) are the units of length. The relation between meter and mile is expressed…

Q: 6. Uranium hexafluoride is a solid at room temperature, but it boils at 56°C. Determine the density…

A: Density = 12.85 g/L

Q: Molecules with stronger intermolecular forces will have... Boiling Point Melting Point Surface…

A: Intermolecular forces refer to the type of interactions which are present within the atoms or…

Q: 9. If you pour 60 grams of KCl into 100 g of water at 70°C, and stir vigorously, which type of…

A: 9. Given information,   Mass of KCl = 60 g   Mass of water = 100 g   Temperature = 70oC

Q: | 2. (To make 100mL of 50mM CaCl₂, weigh ANSWER (include unit) of CaCl₂, place in a graduated…

A: Given questions belongs to preparation of solutions and stoichiometry.  “Since you have posted…

Q: 9. a. Calculate the pH of a solution that is 1.00 M HNO₂ (Ka = 4.00 x 10-4) and 1.00 M NaNO₂.

A:

Q: 6. Consider that the average lung can hold about 6 liters of air and the composition of air is 78%…

A: Volume of air lung can hold = 6L Composition of air in lungs -- 22% oxygen and 78 % nitrogen  Mass…

Q: 6. Calculate the percent dissociation of 0.10 M hydrazoic acid (HN3, Ka= 1.9 x 10-5). Recalculate…

A: Answer: Hydrazoic acid is a weak acid and we have to study the common ion effect on its dissociation…

Q: 4) Answer the following in our own words to the best of your knowledge: a. Why is the second…

A: To solve this problem we have to know the electronic configuration of potassium.

Q: 7. At 25°C, an aqueous solution of AlBr3 will have: (a) pH >7 (b) pH = 7 %3D (c) pH < 7

A:

Q: HI + H2O O. (2 equiv)

A: Protonation of etheral oxygen  Formation of stable carbocation intermediate  Attack of nucleophile…

Q: ow many grams of Ag(s) (107.9 g/mol) could be plated out on the cathode of an electrolytic cell by…

A:

Q: 12. Imagine that you have two samples, compound “A" and compound “B", both are liq at -250°C. You…

A: Since your question has multiple parts, we will answer the first question for you. If you want…

Q: OTI T 12. At one time, silver sold for $5.03 per ounce. If the density of silver is 10.5 g/cm2,…

A: Given: Density of Ag = 10.5 g/cm3. Volume of Ag = 8.91 cm3  And price of Ag = $ 5.03 per ounce.

Q: Tell what sublevels there are in each of the following energy levels, and explain each answer in…

A: Q.4) Here energy levels are given and we have to find sublevel in these energy levels. •Please pay…

Q: 14. On a 14.6 oz bag of candy, the manufacturer states that a single 2.00 oz serving is equivalent…

A: Oz is a unit for measuring weight. Similarly, joule and calorie are the units for measuring energy.…

Q: 6. If there is a direct relationship then k =P/N. If there is an inverse relationship, then k= P x…

A: Boyle's law: At constant temperature, the pressure of given mass of a gas is inversely proportional…

Q: 5. 6. What mass of N Calculate the percent yield of Na3PO4 if 350. g of Na3PO4 are formed from 692 g…

A:

Q: 14. Which of the following has 58 neutrons, 45 protons, and 45 electrons? Mo (A: 103; Z: 45) Tu (A:…

A: The number of electrons in an atom is always equal to its atomic number . According to quantum…

Q: E) Ion Combination Reactions (Double Replacement) 9) Barium sulfate precipitates when barium…

A: Double replacement reaction is a type of chemical reaction where both acid radicals and basic…

Q: 7. When nitromethane, CH3NO2 (molecular mass = 61.05 g/mol) is burned the following reaction occurs:…

A:

Q: Consult a table of standard reduction potentials and determine which of the following reactions are…

A: Standard electrode potential is the electrode potential that is measured under standard conditions…

Q: 4. Determine the solubility of silver sulfate (Ksp = 1.2 x 10-5) in a 0.10 M solution of silver…

A: Given :  Ksp of silver sulphate (Ag2SO4) = 1.2 x 10-5  Concentration of silver nitrate (AgNO3) =…

Q: Number 7

A: The unit conversion of has to be found.Given,Weight of truck is 1.45×103 pound

Q: QUESTION 11 The tail of the curved arrow must start at electron density and the head must end at O…

A: If you are mentioned number 11. So that I am answered that one question only.

Q: A buffer solution contains 0.10M benzoic acid (C6H5COOH, Ka= 6.3 x 105) and 0.10M potassium benzoate…

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

Q: D Question 3 Predict the pH range of a 0.500 M solution of LICIO4 need more information O neutral O…

A: pH range of a salt solution can be figure out from the composition of salt.

Q: A karat is a measure of gold purity. By definition, 24-karat gold is pure gold. However, gold is…

A: 5) Given: Mass of ring = 6 g. And mass percent of gold in ring = 90 %.

Q: Column A Column B 1. Hydrogen Bond a. A force of attraction between two non-polar molecules.…

A: Intermolecular forces refer to the type of interactions which are present in between atoms or…

Q: 10. A sample of xenon gas has a volume of 7.50 L at 35°C and 675 mmHg. What is the final pressure of…

A:

Q: 4. Subtract 3.58 x 10-2 kg from 1.41 x 101 ng and report your answer in g.

A: We know that kilogram, nanogram and gram are the units of mass.

Q: 11) An athlete in El Paso takes a deep breath, inhaling 1.99 L of air at 25 °C. If the average…

A:

Q: 10) Always a diligent chemist, you spend your free time thinking about the strengths of acids. How…

A: The dissociation of acid is given by: HA → H+ + A-Ka = H+  A-HA If the strength of the acid…

Q: 11) Show how the following product can be made from benzene. AlCl3 1 2) / 3) 2₂ (H₂), heat, HCI

A:

Q: 『 ニ 1bU • 160 10. A solution containing 0.050 g of an unknown nonelectrolyte in 2.50 g of…

A: Given,  Cyclohexane (solvent) = 2.5 g = 0.0025 kg , unknown non-electrolyte (solute) = 0.050 g,  Kf…

Q: 6. What is the frequency of a light source that has a wavelength of 620 nm? What is the energy this…

A: Wavelength of the wave = λ= 620 nm = 620×10–9 m We need to calculate frequency and energy of this…

Q: Click the "draw structure" button to launch the drawing utility. Draw the missing product in the…

A: The question is based on organic reactions.We need to identify the product and explain its…

Q: For the following reaction, ide Xo 요 i 1 || IV Acid Base Acid I and II B. I and III I and IV D. II…

A: 2) Bronsted-Lowry base is a base which accepts a proton(H+). Compound I accepts a proton from…

Q: 4. Calculate the heat of formation for the following reaction at 25°C. NH4NO3 (s)→ NH4+ (aq) +…

A:

Q: Design syntheses to produce the following compounds starting with any alcohol with 3 or less carbons…

A: We have to design the synthesis for the following given compounds with any alcohol with 3 or less…

Q: 5) Why does copper (Cu) easily lose and electron from its s subshell instead of its d shell when…

A: To answer 5 th question we first need to determine configuration of copper . The half filled and…

Q: Write a skeleton equation for each chemical reaction. Indicate the state of each reactant and…

A:

Q: * 10.00 mL of vinegar (mass 10.05 g) requires 16.28 mL of 0.5120 M NAOH to reach the end point.…

A:

Q: Design syntheses to produce the following compounds starting with any alcohol with 3 or less carbons…

A:

Q: How much heat is required to raise the temperature of 854 g of H2O from 23.5 °C to 85.0 °C?

A: 4.  Given :  Mass of H2O = 854 g  Initial temperature = 23.5 °C  Final temperature = 85.0 °C  To…

Q: 9. How many grams of a gas can occupy a cylinder with a diameter of 1.5 dm and a height of 8.00 in…

A: 9. Given that : Diameter of the cylinder = 1.5 dmHeight of the cylinder = 8 inchDensity of the gas =…

Q: Number 4 5 and 6

A:

Q: 1₁ -2.02 -loy (2.012) = 2 + x y 2012 2012 201 CH LPH-0.304 6. Sodium azide, NaN3, is sometimes added…

A:

Q: What is the pressure (in atmospheres) of the gas inside the container connected to an open-end,…

A:

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.