X Home 101 Chem 101 X X app.101edu.co Submit Question 4 of 42 Which of the following temperatures is the coldest? A) 100 K B) 100 °C C) 100 °F 10:18 AM е OType here to search 11/21/2019
Q: Given the following chemical reaction and standard thermodynamic quantities in the table, ...
A: Given the following chemical reaction and standard thermodynamic quantities in the table, ...
Q: Suppose 0.680 mols of electrons must be transported from one side of an electrochemical cell to anot...
A: The relation between current, charge and time is given by the Ohm’s law according to which the charg...
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A: The given specie is Co(s). The chemical name of Co is cobalt. The bond present in the given species ...
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A: According to the given graph, the equivalence point of the given titration is at pH = 8.5. An indica...
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A: In the outer shell of Calcium they have two electrons while fluorine has seven electrons. They compl...
Q: a. Balance the following equations. b. Identify oxidizing and reducing agents. c. Determine the oxid...
A: The balanced chemical equation is given as
Q: Hydrochloric acid, the contents are 36.0% HCl by the mass and have a density of 1.18 g/mL. a) What ...
A: Given :Hydrochloric acid = 36.0% HCl by the mass i.e., 100 g of solution will contain 36 g of acidDe...
Q: Industrial chemistry: Provide a mechanism for the hydrocracking of n-Heptane in the presence of hydr...
A: In the mechanism involving hydrocracking of n-heptane, primary step involves the removal of H2 resul...
Q: Complete the table. Mass Solute Mass Solvent Mass Solution Mass Percent 15.3 g 248.1 g _____ ...
A: Mass percent can be calculated using the following formula.
Q: In the balanced molecular equation for the neutralization of sodium hydroxide with sulfuric acid, th...
A: The balanced molecular equation for the neutralization of sodium hydroxide with sulfuric acid is giv...
Q: Determine the Kb of a weak base if a 0.563 M aqueous solution of the base at 25 ° C has a pH of 10.8...
A: Given information:Concentration of aqueous solution of base = 0.563 MpH of solution = 10.88
Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of ...
A: The standard enthalpy of a reaction is the change in the enthalpy which occurs in a system when the ...
Q: Which of the following descriptions and/or equations best represent the enthalpy change of a system?...
A: Given statements,(A) The sum of the internal energy and the pressure-volume product of a system.(B) ...
Q: A reaction has an equilibrium constant of 8700 at 298 K. At 712 K, the equilibrium constant is 0.33....
A: The formula used to calculate the enthalpy of reaction is,
Q: An unknown food-dye is analyzed by the method used in this experiment. The absorbance of 5 standard ...
A: According to the question, the relation between the absorbance (Abs) and concentration of the soluti...
Q: A 500.0 ml solution of a buffered solution has a pH = 7.4 a. What is the [H3O+]? b. If a few of dilu...
A: pH:The is a unit of measure which describe the degree of alkanity or acidity of a solution.
Q: Titration of 100.00mL of a 0.1000M solution of a weak acid HA (K 1.30x10) with 0.100M NaOH solution....
A: pH definition:The concentration of hydrogen ion is measured using pH scale. The acidity of aqueous ...
Q: Chp 13-5
A: According to Bronsted-Lowry theory, an acid is defined as a species which donates a proton. And a ba...
Q: A solution has a Fe2+ concentration of 5.0 x 10-3M. What is the minimum concentration of CO32- ion...
A: In a saturated solution, the molar solubility of salt is used to determine the solubility product. ...
Q: Consider the following gas phase reaction: 2NO(g) + O2(g) --> 2NO2(g) 400 mL of NO at STP is reac...
A: According to the balanced chemical equation, for 1 mole of NO we need 0.5 mol of O2. So for 0.0178 m...
Q: Assume that, at body temperature, a mole of carbon dioxide gas occupies 24.4 L of volume. What is th...
A: Conversion of Liter to millilitres(ml) is,
Q: Calculate the push equilibrium constant KP for the equilibrium between nitrogen trioxide. Oxygen. Ni...
A: Given:Pressure of nitrogen trioxide gas= 2.4 atmPressure of oxygen gas= 5.5 atmMole fraction of ozon...
Q: An electrical heater is used to supply 240.0 J of energy to a 30.0 g sample of aluminum, origina...
A: Given, mass of aluminum = 30.0g.The number of moles of aluminum can be calculated as follows:
Q: A reaction of 44.7 g of Na and 35.7 g of Br yields 45.2 g of NaBr. What is the percent yield? 2 Na(s...
A: Given:Mass of Na = 44.7 g.Mass of Br2 = 35.7 g.Actual yield of NaBr = 45.2 gBalanced chemical reacti...
Q: arrange the following from highest to lowest boiling point, using the concepts of intermolecular for...
A: A chemical compound consists of two or more different elements which are bonded with each other thro...
Q: 1. Calculate the mass of magnesium that is required to produce 27.8 mL of hydrogen gas at 26 °C and ...
A: Given information,Volume of hydrogen gas is 27.8 mL.Temperature is 26 degree Celsius and pressure is...
Q: Which of the following is a solution? 1.blood plasma 2.cigaratte smoke 3. Milk 4. Non of these
A: Colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between...
Q: What is the pH at the equivalence point when 75.0 mL of a 0.150 M solution of acetic acid (CH3COOH)...
A: At the equivalence point, the number of mole of base present is equal to the number of mole of the a...
Q: A sample of argon gas at a pressure of 0.972 atm and a temperature of 23.5 °C, occupies a volume of ...
A: According to the Boyle’s law, the volume of a fixed amount of gas at a constant temperature will be ...
Q: Chp14-5(2)
A: The chemical substance that gains electrons in the redox reaction are called oxidizing agent. They o...
Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N2] ...
A: The balanced reaction can be given as
Q: 1. What is the total number of valence electrons in the Lewis structure of SF2? (2) Draw a Lewis s...
A:
Q: An ancient skull has a carbon-14 decay rate of 0.85 disintegrations per minute per gram carbon (0.85...
A: The half life for a radioactive element can be defined as the time taken by the half of the material...
Q: Calculate the solubility (in M) of cobalt(II) hydroxide, Co(OH)2(s) in H2O. Ksp = 1.70×10-16 at a sp...
A: One mole of cobalt(II) hydroxide will dissociates into mole of cobalt (II) and two moles of hydroxid...
Q: Dichloromethane (CH2Cl2, Hvap= 25 kj/mol) has a vapor pressure of 330 mm Hg at 20oC. What is the nor...
A: Given,ΔH = 25 kj/molP2 = 330 mm Hg
Q: Calculate the energy required to heat 1.40 kg of graphite from 8.7 °C to 15.8 °C. Assume the specifi...
A:
Q: What is the total number of valence electrons in the Lewis structure of CH4?
A: The Lewis structure of CH4 can be drawn as:
Q: In lab, a student weighed out 3.569 g of an unknown salt. Her coffee cup calorimeter weighed 35.638 ...
A: Given:The weight of unknown salt is 3.569 gWeight of coffee cup calorimeter is 35.638 gWeight of cof...
Q: 5) and 6)
A: “Hey, since there are multiple questions posted, we will answer first question. If you want any spec...
Q: The standard potentials for the reduction of nicotinamide adenine dinucleotide (NAD+) and oxaloaceta...
A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and...
Q: I have the 4th edition of Tro Nivaldo's Chemistry: a Molecular Approach book and on page 731 the Ka ...
A: For a generic acid, the acid dissociation constant Ka is given by,
Q: Identify how entropy (S) changes for each of the following processes. 1) freezing water in a refrig...
A: Freezing water in a refrigerator:Entropy is decreasing when water freezing in a refrigerator. Becaus...
Q: How many atoms are contained in in 3.62 mol O2 ?
A: It is known that 1 mole of a substance is equal to 6.022×1023 atoms. The given molecule is O2. In th...
Q: Draw the following compounds: A) (2S,5R)-chloro-2-ethylhexanoic acid B) (1R,2R,4R)-4-ethylcyclohexan...
A: Structure for the compounds (A), (B) and (C) is given below,(A) (2S,5R)-5-chloro-2-ethylhexanoic aci...
Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many mod...
A: Given,Mass of NH3 = 51. 8 gMass of O2 = 51. 8 gMoles of NH3 and O2 can be calculated as:
Q: In lab, a student weighed out 3.457 g of an unknown salt. Her coffee cup calorimeter weighed 37.25 g...
A: Mass of water is calculated as shown below,
Q: 4. A 0.010 M solution of AgNO3 is made 0.50 M in NH3 and Ag(NH3)2 complex forms Ag(NH3)2*(aq) Kf = 1...
A: The balanced chemical equation is given below.
Q: What is the wavelength (in pm) of a proton traveling at a speed of 6.21 km/s?
A: The wavelength (in pm) of a proton travelling at a speed of 6.21 km/s is calculated as,
Q: how many milliliters of .100 m HNO3 are needed to neutralize the following solution? write the balan...
A: Given,Volume of Al(OH)3 = 58.5 mL = 0.0585 L (1 mL = 0.001 L)Molarity of Al(OH)3 = 0.0100 M = 0.0...
Q: Aqueous solutions of potassium sulfate and ammonium nitrate are mixed together. Which statement is c...
A: Solubility rules:Salts formed with group-1 cations and NH4+ cations are soluble. There are some exce...
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- The freezing point of acetic acid is typically 16.6 \deg C. If a sample of 95% w/w acetic acid and 5% w/w water is cooled, at what temperature in degrees Celsius would it freeze? The density of acetic acid is 1.05 g/mL.. Keep your answer to 3 significant figures. (Kfp-3.90 \deg C/m for acetic acid). . .What is the boiling point of the automobile radiator fluid prepared by mixing 1.04 L of ethylene glycol (HOCH2CH2OH, density = 1.114 g/mL) with 1.08 L of water (density = 1.000 g/mL)?The Kb of water is 0.520°C/m.What is the boiling point of the automobile radiator fluid prepared by mixing 1.04 L of ethylene glycol (HOCH2CH2OH, density = 1.114 g/mL) with 1.08 L of water (density = 1.000 g/mL)? The Kb of water is 0.520°C/m.
- A 527.2g sample of water at 55.7  Celsius is taken to freezing point 0 Celsius. How much energy was removed removed from the sample?The average normal body temperatureis generally accepted as 98.6 °F. What is the temperature in °C and K?The density of liquid NH3 is 0.64 g/mL; the density of gaseous NH3 at STP is 0.0007 g/mL. Explain the difference between the densities of these two phases.
- (a) If a 500-mL glass beaker is filled to the brim with ethyl alcohol at a temperature of 5.00oC how much will overflow when its temperature reaches 22.0oC? (b) How much less water would overflow under the same conditions?A quantity of ice at 0oC is added to 64.3 grams of water in a glass at 55oC. What temperature will the water be if 27 grams of ice is melted?At what temperature will urms for Ne (g) be the same as urms for He at 27 o C?
- A balloon filled in publix at 27°C to a volume of 130cm^3 was moved outside where the temperature was 35°C. What is the new volume?A 140-g aluminum cylinder is removed from a liquid nitrogen bath, where it has been cooled to - 196∘C . The cylinder is immediately placed in an insulated cup containing 90.0 g of water at 15.0 ∘C . If your answer is 0 ∘C , determine the amount of water that has frozen.how many grams of ethylene glycol must you add to 10.00 liters of water in your car radiator to protect against freexing at -10.00 degrees celcius ? to what farenheit temperaature does this correspond?