A mixture of oxygen and krypton gases, in a 7.91 L flask at 41 °C, contains 8.74 grams of oxygen and 7.22 grams of krypton. The partial pressure of krypton in the flask is atm and the total pressure in the flask is atm.

Q: Molecules that are amphoteric are not capable of reacting with both acids and bases True False

A: We need to use the definition of amphoteric molecules to determine the answer.

Q: Determine the amount of carbon dioxide produced when 0.35 mol of calcium carbonate decomposes, and…

A: Balanced equation is :  CaCO3(s) ------> CaO(s) + CO2(g)  given : the moles of CaCO3 is 0.35mol…

Q: What are the products from one turn of the citric acid cycle? Check all that apply. O CoA OGTP(ATP)…

A: What are the products from one turn of the citric acid cycle? CoA GTP(ATP) FADH2 CO2 GDP(ADP) NAD+…

Q: A 1.71 mg sample of copper reacts with oxygen to form 1.93 mg of a copper oxide compound, CuxOy.…

A:

Q: Determine which type of sampling technique is used. 19. A bread company wants to know whether men or…

A: Simple random sampling: It involves in the selection of set of data randomly from the population and…

Q: A 7.00L tank at 8.89°C is filled with 2.65g of carbon dioxide gas and 14.2g of chlorine…

A: Given , Volume of tank , V = 7.00 L TemperatureT=8.89°C=(8.89+273.15)K=282.04 K

Q: The element berkelium, first prepared at the University of California at Berkeley in 1949, is made…

A:

Q: 8. Which of the following combinations would act as buffered solutions (look at the ions…

A: Given : compounds Tip : buffer solution contains weak acid or base and their salt.

Q: your answers to 3 significant digits. mmHg torr 4 X 0 A

A: Unit conversion.                                                   1 atm = 760 mmHg.…

Q: 23) Which of the following correctly represents the electron affinity of phosphorus? A. P4 (g) + e-…

A: Electron affinity is the amount of energy liberated when an electron is added to a neutral atom to…

Q: 1. Write the equilibrium expression for each of the following reactions. a. 203(g) 302(g) b.…

A: In the given question, equilibrium equation is given and we have to find equilibrium expression for…

Q: QUESTION 11 What is the IUPAC name for CH3-CH2-CH2-CH-CH2-CH3 4-methylhexane. methylhexane.…

A: The organic compounds of alkane is given and we have to tell the IUPAC name of the this compound.

Q: At 1 atm, how much energy is required to heat 75.0 g H2O(s) at −14.0 ∘C to H2O(g) at 123.0 ∘C? Use…

A: We will write all conversion steps and calculate heat required for each step and add them up.

Q: Which statement best describes the First Law of Thermodynamics? Change in internal energy of a…

A: To solve this problem we have to explain the first law of thermodynamics .

Q: The world's worst nuclear power plant accident occurred in 1986 at Chernobyl, then part of the…

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

Q: Create a data table like this one and put your calculated HCI pH values in the table. HCI Solution…

A: pH can be calculated using the given concentration of acid using the formula :  pH = - log[H+]

Q: What is the solubility of Ag2CO3 in mol/L? Give an answer with 4 significant figures.

A:

Q: What is the density in g/L of Chlorine gas at STP (remember chlorine is diatomic)?

A: Given -> At STP -> T = 273 K  P = 1 atm

Q: a) Enough of a monoprotic acid is dissolved in water to produce a 1.291.29 M solution. The pH of the…

A: 1) we have to calculate the value of  Ka for the weak acid

Q: write the scientific notation of 204.5 x 10^21 and 2 x 10^25

A: In the given question, we have to write the values in the term of scientific notation.

Q: 9-33 Predict the products of reaction of pent-1-yne with the following reagents. (e) 1 equivalent of…

A: Alkyne adds a molecule of bromine to give vicinal dibromide addition product. Alkyne adds two…

Q: 6. The Newman projection and an equivalent 3D projection for an alkyl bromide is shown below. Under…

A: To answer: In 1-2 sentences, explain why only one constitutional isomer (regioisomer) forms.   b.…

Q: How many sigma and pi bonds are there in the following molecules? HCN CO2 CH4 H2CO CO3 2-

A: Covalent bond is formed by sharing of electrons between two atoms in which sigma and pie bond is…

Q: Which of the following reactions is AS° a negative value? a. b. CH3 + CH3 C. (CH3)2C(OH)2 d.…

A: we have to select the reaction with negative value of change in entropy

Q: How would you perform the following synthesis? There is more than one step and less than three…

A:

Q: Combustion of hydrocarbons such as nonane (C₂H₂) produces carbon dioxide, a "greenhouse gas."…

A:

Q: Consider a galvanic cell based on the reaction 2Fe²+ (aq) + Ch (g)→2Fe+ (aq) + 2Cl(aq) Part A…

A: To find out cell potential, first find out the value of standard potential and then use the Nernst…

Q: initial rate data at a certain temp is given in the table for the reaction (see image) determine…

A: We can predict the rate constant using the rate equation. Rate constant depends on the order of the…

Q: A piston compresses a gas from 10 to 5 L using an external pressure of 3 atm. How much work is done…

A: please go through my hand written notes for the detailed solution. Answer is 1519.5 J

Q: When the Hg2+ concentration is 4.46x10 M, the observed cell potential at 298K for an electrochemical…

A: Given -> Ecell = 1.932 V  [Hg2+] = 4.46 × 10-4 M

Q: Calcium phosphate reacts with potassium chloride to produce calcium chloride and potassium…

A:

Q: For the diprotic weak acid H₂A, Kal = 2.8 × 10-º and K₁2 = 7.5 × 10-⁹. What is the pH of a 0.0650 M…

A: we have to calculate the pH of weak diprotic acid

Q: Given a gas sample with a Temperature of 298 K, a Pressure of 1.2 atm, and a molar quantity of 0.12…

A:

Q: what is the final volume of a weather balloon that is initially inflated to 2.50 L at a pressure of…

A:

Q: QUESTION 16 Which of these formulas is the expanded structural formula for an alkane with three…

A: We will draw molecule asked and then give expanded structural formula.

Q: 1. How many grams of Al³+ are present in 1.07 grams of aluminum sulfite? grams Al³+ 2. How many…

A: Given : name of Compounds            Al2(SO4)3 = 1.07 g

Q: Categorize each diatomic molecule as diamagnetic or paramagnetic Dlagmagnetic 0₂ A No Answers Chosen…

A: If all the electrons in the diatomic molecule are paired then it is diamagnetic in nature and if all…

Q: What is the daughter nuclide when Ac-227 experiences beta decay? (Write your answer as a symbol-mass…

A:

Q: Which molecules have delocalized molecular orbitals NO₂ A Have delocalized orbitals Possible answers…

A: We have been given four molecules We have been asked to choose molecules that have delocalised…

Q: Al (s) / Al³+ (aq) // Ag+ (aq) / Ag(s) • Eºred Al³+ / Al = -1.66 V • Eºred Ag+ / Ag = +0.77 V a.…

A:

Q: Isn't w positive if the work is done on the system and negative if the work is done by the system.…

A: Answer: This question is based on the sign convention of chemical thermodynamics. In chemical…

Q: Potassium bromide (KBr) has a molar mass of 119 g/mol. If I dissolve 4.87 of KBr in 37 mL of water,…

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution. In the…

Q: Give 3 examples of 2D NMR?  Please answer at your own easy words. Answer should be to the point.

A: 2D or two dimensional NMR spectroscopies are the techniques for correlating  the couplings among the…

Q: 17) If pressure and temperature are kept constant, the reaction of 29 mL of N2 gas with 87 mL of H2…

A:

Q: At sea level, water freezes at which temperature(s)? O212 °F O 373 K O 0°C

A: To solve this problem we have to know about the freezing point of water .

Q: Find [OH-] in 6 M aq. NaOH. [OH-] = Find [CI] in 2 M aq. MgCl₂. [CI] = Find [Br] in 3 M aq. FeBr3.…

A: Concentration of NaOH = 6 M Concentration of MgCl2 = 2 M Concentration of FeBr3 = 3 M

Q: Use the AHºf information provided to calculate AH°rxn for the following: CH4(g) + 2O2(g) → CO₂(g) +…

A: Enthalpy of a reaction can be predicted using the standard enthalpy of the formation of the species…

Q: Iron-59 is a radioisotope that is used to evaluate bone marrow function. The half-life of iron-59 is…

A: Given data is The half-life of iron-59 =  44.5 days. Initial quantity of iron-59 = 44.7 mg

Q: Calculate the cell potential in volts for an electrochemical cell constructed with a Ni/Ni2…

A: Answer:- This question is answered by using the simple concept of calculation of cell potential…

Q: How many miles of H2O are contained in a 15.0 L stainless steel container at a pressure of 945 mmHg…

A: Mole is defined as weight of substance divide by it's molar mass

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.