A 6.25-L helium balloon at a temperature of 28.50°C and pressure of 757.2 mmHg is submerged into a swimming pool to a depth where the pressure is 922.3 mmHg and the temperature is 26.35°C. What is the volume of the submerged balloon?

Q: When the following equation is balanced, the coefficient of H,0 is Cа (9) + H,0 () > Са(ОН), (аq) + ...

A:

Q: In order for Cl and NOCl to react and produce NO and Cl2 which of the following have to be true?   ...

A: Collision theory of reaction rate: According to the collision theory of reaction rate, the randomly ...

Q: A 9.37 g sample of an unknown element was determined to be 0.0714 moles. What is the identity of the...

A: Given :  Mass of element = 9.37 gm  Moles of element = 0.0714 moles 

Q: If the wine is 15 %, how many milliliters  of ethanol, C2H5OH are present in a bottle containing 500...

A: Given,  Volume of the wine = 500 mL  Volume percent of ethanol in wine = 15%  Find the volume of the...

Q: Sodium carbonate is added to the extraction to O increase solubility of caffeine in water decrease s...

A: Caffeine can be classified as a drug  naturally present in the seeds and leaves of many plants. For ...

Q: Complete the table below for calculating the molar mass of the ionic compound nickel(II) sulfide . F...

A: The mentioned compound in the question contains one Ni and S in their corresponding ionic form.  

Q: You have a 350mL of a 1.5M NaCl solution. If boiling the water until the volume of the solution is 2...

A: Given,  Initial volume, V1 = 350 mL Initial concentration, S1 = 1.5 M Final volume, V2 = 200 mL  Fin...

Q: Exercise 2 Consider the three sp? hybridized orbitals, 1 25 + V3 1 2s - V3 2pz +2px 1 43 = V3 1 2Px ...

A: We have the following wave functions that we will be using during our calculations: ψ1=ψ1*=132s+232p...

Q: Calculate. 5. What is the pCa of a 50ppm Ca(NO3)2

A:

Q: 29. . Allotropes differ in which of the following properties: A. Electronegativity B. Crystal Stru...

A: According to Bartleby guideline more than one question only one question is attempt 

Q: Why is it important in using change in free energy, ΔG, as the thermodynamic parameter for assessing...

A: Thermodynamics is branch of chemistry which deals with heat gained and heat lost by system. 

Q: Give the number of peaks expected in the 'H NMR for the indicated protons in each of the following s...

A: Spin multiplicity =2nI+1    where n=no of hydrogen     and I=nuclear spin ,for hydrogen nuclear spin...

Q: How many grams of Co are there in a sample of Co that contains 9.57×1023 atoms? grams

A: 1 mole of any atom corresponds to Avagadro's number i.e. 6.023 x 1023 atoms. Therefore, Cobalt (Co) ...

Q: Which of the following has the greatest solubility? a. NiS (Ksp = 5.6 x 10-16) 3. %3D b. Fe(OH)2 (Ks...

A:

Q: What is the molar absorptivity of a 2.50 x 10-4 M solution if its absorbance at 550 nm is 0.500? The...

A:

Q: Acetylene, C2H2, is a gas used in welding. The heat evolved for the combustion of acetylene is –33.7...

A:

Q: Use the graph below as reference: What is the boiling point of pure toluene? O a. 110 % O b. 109 % ...

A: Given, A phase diagram of toluene and cyclohexane is provided as reference       Required,          ...

Q: 106

A: The reaction between SO2 and H2O is, SO2g+H2O l ⇔H+aq + HSO3-aq Remember that 0.12 ppm SO2 is 0.12 p...

Q: How many atoms are in 25.6 g tin? O 3.01x 1024 atoms O 3.01x 1023 atoms 6.02 x 1024 atoms O 1.30 x 1...

A: We have to predict the number of atoms.  

Q: How many atoms are in 25.6 g tin? O 3.01 x 1023 atoms O 3.01x 1024 atoms O 6.02 x 1024 atoms O 1.30 ...

A: Given data:  Mass of tin = 25.6 g Standard data:  The molar mass of tin = 118.71 g/mol

Q: TRial 1 Trial 2 Trial 3   0.1 N HCl 0.1 N NaOH 0.1 N HCl 0.1 N NaOH 0.1 N HCl 0.1 N NaOH Fi...

A: Given that, the tritation of 0.1 N of HCl by 0.1 N of NaOH. The data table is shown below   Trial...

Q: a) Using the one-dimensional particle-in-the-box model, calculate the energy required to promote an ...

A:

Q: How many neutrons are in in Neon 22? 6Ne This is an isotope of Neon, normally Neon has an atomic mas...

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the n...

Q: Suppose 3.85 g of chlorine, Cl2, are used to prepare dichlorine pentoxide, Cl2Os. How many moles of ...

A:

Q: What is the mass of 4.63 x 1012 atoms of Fe? O 2.73 x 10-10 g O 4.29 x 10-10 g O 9.76x 10-10 g O 1.6...

A:

Q: Write the balanced molecular, ionic and net ionic equation when Calcium Nitrate is mixed with Alumin...

A: Given reactants are :  Ca(NO3)2 and AlPO4  Write the balanced molecular equation = ?  Write the bala...

Q: Manganese(IV) oxide and aluminum metal react at high temperatures to form manganese metal and alumin...

A:

Q: Calculate the mass of 1.92 x 1018 atoms of Mg. O 2.73 x 10-10g O 2.16 x 10-10 g O 1.62 x 104g O 1.08...

A: Given,  1.92x1018 atoms of Mg  We know that,  1 mol = 6.023x1023 atoms 

Q: How many bananas are in 0.10 moles of bananas? O 6.0 x 1022 O 3.0 x 1023 O 3.0 x 10-21 O 6.0 x 1024

A:

Q: In the first step of this process sodium bromide is dissolved in water. It is mentioned that not all...

A: Given data:  The solubility of NaBr = 0.9432 g/mL Mass of NaBr = 78 g Volume = 75 mL

Q: 1-pentanol + NaBr/H2SO4 -> 1-bromopentane Is this substitution reaction reversible? In other words,...

A: A reversible reaction attains an equilibrium state at a time t.

Q: To determine the concentration of these analyte ions in a mixture, the mixture absorbance is analyze...

A: This is application of the Lambert beer law . Here we are required the molar concentration of X3+ an...

Q: Which of the following is NOT true of molarity? it is defined as moles solute per liter of solvent ...

A: Definition: Molarity is a concentration term for a solution. The molarity of a given solution is def...

Q: e empirical formula for

A:

Q: One spring Sunday, my children asked me to put the inflatable pool that measures 1m × 2m x 0.6m, but...

A: A question based on general chemistry that is to be accomplished.

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: When 1 mole of H2S(g) reacts with H2O(l) to form H2(g) and SO2(g) according to the following equatio...

A: Exothermic reactions are those reactions in which heat energy is released and have negative value of...

Q: A certain radiation has a wavelength of 574 nm. What is the energy, in joules, of (A) one photon? Yo...

A:

Q: What kind of alloy has separate phases of solid materials? Group of answer choices substitutial allo...

A: An alloy is mixture of two metallic solid solution composed of two or more element.  

Q: Oxygen oxidizing Sulfide [ Choose ] Superoxide [ Choose ]

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

Q: If an analytical method relies on a measurable property of an analyte that can be correlated with th...

A: The majority of the classical analytical methods rely on chemical reactions to perform an analysis. ...

Q: Complete the table below for calculating the molar mass of the ionic compound chromium(III) fluoride...

A:

Q: A liquid and a solid of the same substance coexist in a flask as shown in the diagram below. The sys...

A: A question based on matter that is to be accomplished.

Q: An unknown compound contains nickel, phosphorus, and oxygen. When analyzed, a 100.0 g sample was fou...

A:

Q: 6. Write True or False and explain your answer. CHCI-Acetone system is an ideal solution.X b. a. The...

A: Exothermic reactions can be defined as the reactions wich involve release of heat energy during reac...

Q: Key Results: 50 mL Beaker 10 mL Grad Cylinder 50 mL Buret Average volume (unit) 3.886 g

A: Solution- For this solution we find the average volume, standard deviation, relative standard deviat...

Q: CH3CH2NH2 (с) 2 eq CH3CH2OH (d) H30* (е) -CH2-CH2-C-H КKMnOд, cold dilute

A: The given reactions are some of the well established reactions exhibited by carbonyl functionality.

Q: Please check image below. A. Primaquine PO4. How much Primaquine PO4 should be added to compound the...

A: For formulation of 1 tab, 30 mg of PO4 is required. No of tabs in a batch = 600,000

Q: Give the following information for the encircled element in the molecules as shown below 5) |CH3CH2C...

A: a) Nitrogen has 5 valence electrons b) Lewis dot structure of the given is in the handwritten : c) T...

Q: Which of the following does not belong to the group? O carboxyl (-COOH) O formyl (-CHO) O carbonyl (...

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.