a) How many molecules are present in 5.32 moles of chalk (CaCO3)? b) How many oxygen atoms are present in this chalk sample?

Q: A 10.5 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A:

Q: Which is the valid calculation procedure for diffusivity of a gas in a gas mixture using…

A: To describe the valid calculation procedure for diffusivity of a gas in a gas mixture using…

Q: For the equilibrium Br2(g) + Cl2(g) ⇌  2 BrCl(g) at 400 K, Kc = 7.0. If 0.32 mol of Br2 and 0.32 mol…

A: Bromine reacts with chlorine to form bromine monochloride. The equation for the balanced chemical…

Q: Methanol is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen: CO(g)…

A: Given -> CO(g) + 2H2(g) <-----> CH3OH(g)  Volume= 1.05 L  At equilibrium -> Mole of…

Q: Calculate the partial pressure of each gas and the total pressure for each of the following gas…

A:

Q: axial ? equatorial? ax/eq?

A: Stereochemistry is a branch of chemistry in which we deal with three dimensional arrangement of…

Q: A 10-mm cube of copper metal is placed in 250 mL of 12 M nitric acid at 25°C and the reaction below…

A: we have to calculate the rate at which H+ ions are consumed in the given reaction

Q: Answer the following question: Are the following solutions isotonic, hypotonic, or hypertonic…

A: Given  a) Distilled H₂O c) 0.9 % (m/v) Na CI b) 1% (m/v) glucose d) 15 % (m/v) glucose

Q: [References] Use the References to access important values if needed for this question. Write a net…

A: A net ionic equation is  chemical species that are involved in a reaction, while a complete ionic…

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) Fe²+ + Cr → Fe + Cr³+ CONTENT SHOULD BE…

A: The given redox reaction is Fe2+ + Cr →Fe + Cr3+. We have to balance the given redox reaction.…

Q: Isopropanol, the compound commonly known as rubbing alcohol and shown below in Part 1, has a boiling…

A: Given information is,  Isopropanol, the compound commonly known as rubbing alcohol, has a boiling…

Q: Polonium-209, an ax emitter, has a half-life of 102 years. ▼ Part A How many a particles are emitted…

A:

Q: a) How many MOLECULES of boron trifluoride are present in 6.27 grams of this compound ? b) How many…

A:

Q: [References] Use the References to access important values if needed for this question. In the…

A:

Q: Does a reaction occur when aqueous solutions of lead(II) nitrate and nickel(II) chloride are…

A: General steps to be followed to write net ionic equation : 1) Write the balanced moleculer equation.…

Q: Solubility of Ionic Compounds Classify each of the compounds as soluble or not soluble: viron(II)…

A:

Q: Which of the five dyes tested in this experiment has the strongest ability to absorb light? How do…

A: Dyes absorb light due to their highly conjugated structure that includes aryl rings.…

Q: 2.) Cyclohexanol, C6H12O, boils at a higher temperature than diethylamine, C4H11N. For which of the…

A: Since the cyclohexanol boils at high temperature means at that temperature it's vapor pressure…

Q: 2. Given: Find: Cr₂(SO4)3 1.26 M mole fraction, density, and % w/w 1.37 m

A: Since the given question is a multiple question, hence I solved first quy according to rules of…

Q: If a reaction involving a single reactant is first order with a rate conatsnt of 4.50 x 10^-2 s^-1,…

A: Here we are required to find the time needed for first order reaction to be 53% of initial…

Q: Question: (4.4) Describe two differences between a boson and a fermion. To which family do the…

A: Given  Find out differences between a boson and a fermion.

Q: 6. 0.75 moles of aluminum sulfate dissolve in 525.0 mL of water per the reaction: Al2(SO4)3 (s)→…

A: Given, Al2(SO4)3(s) ----> 2Al3+(aq) + 3SO42-(aq) moles of Al2(SO4)3 = 0.75 moles Note: asuming no…

Q: Temperature (K) 195 230 260 298 369 etermine the value of activa ints: Arhenius Equation Ea + R…

A:

Q: Consider the reaction below.  The reaction quotient for a specific moment is 3.49⋅ 103.  If the…

A: Given : Q = rxn quotient= 3.49*103               K = equilibrium constant= 1.15*103

Q: Use the References to access important values if needed for this question. How many MOLECULES of…

A:

Q: To make 500 ml 0.075M KCL hypotonic solution from  0.75 M KCl  stock solution, how many ml 0.75M KCl…

A:

Q: the born- haber process is produces ammonia (NH3) and is responsible for the vast increase in…

A:

Q: Please only give an answer from the ANSWER CHOICES: Answer Choices (Only PICK ONE) 1-bromobutane…

A: To assign the given IR spectra to one of the options that are given.

Q: A student wonders whether a piece of jewelry is made pure silver. She determines that its mass is…

A: To check if jewellery is of silver or not , we would first calculate the density from the given mass…

Q: On a clear day, the temperature was measured to be 21°C and the ambient pressure is 761 mmHg. If the…

A:

Q: o For the cell shown, the measured cell potential, Ecell, is -0.3575 V at 25 °C. Pt(s) | H₂(g,0.793…

A:

Q: A student dissolves a sample of barium hydroxide to make a 125-mL solution and then titrates it with…

A: The balanced equation is Ba(OH)2 + 2 HCl ----------> BaCl2 + 2 H2O ΔH for this reaction is –54…

Q: Optimum cell concertation is  very important for successful bone marrow culture.    A technologist…

A: Given that, Initial concentration of bone marrow (C1)=20*106cell/ml  Volume of this bone marrow was…

Q: The results for this part have been recorded in the part D of the Data Sheet. Go over the results…

A: We are given pH data for the addition of strong acid(HCl) and base(NaOH) to water and to a buffer…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: 5. 6. Fe(s) + 5 CO(g) Fe(CO)5(g) at equilibrium, [CO] = 1.34 x 10-4M [Fe(CO)5] = 2.5 M Ş 3Mg(OH)2(S)…

A:

Q: a. b. C. d. 2 C5H10 (9)+ K(s) + 2 Pb*+(aq) + Mg(s) + 15 0₂ (9) HCl(aq)→→→→→ Ce(s) H₂SO4 (aq) 10…

A: Oxidation number method is based on the difference in oxidation number of oxidizing agent and the…

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) MnO₂ + CrO3¯ → Mn + CrO4 CONTENT SHOULD…

A:

Q: What are the strongest solute-solvent interactions present in an aqueous solution of magnesium…

A: The attraction forces between the different molecules are known as intermolecular forces. In general…

Q: 1. In an experiment, 50.0 mL of 0.100 M Na2CO3 is titrated with 0.400 M AgNO3. Ksp for Ag2CO3 is 8.1…

A:

Q: Consider a sample of carbon tetrafluoride that contains 1.59 × 1024 atoms of fluorine. Using the…

A: Recall the data from the question, Atoms of fluorine in carbon tetrafluoride=1.59*1024 atoms moles…

Q: It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the…

A:

Q: 1) A sulfuric acid solution containing 54.4g of H₂SO4 per liter of solution has a P = 1.329 g/cm³.…

A:

Q: Assign R and S to all of the asymmetric centers and give the proper IUPAC name for the following…

A: we have to determine the R and S configuration and write the IUPAC name

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) Fe2+ + Cr → Fe + Cr³+ CONTENT SHOULD BE…

A: We have to find the balanced redox reaction for the following reaction: Fe2+ + Cr --> Fe +Cr3+

Q: To ionize Mg to Mg2+ costs two times as much energy as to form Mg+. The formation of O2- is…

A: M

Q: classmate for the following reaction, 3.87 gm of Carbon (graphite) 14.4 gon of Oxygen gos. Carbon (…

A:

Q: A student dissolves a sample of barium hydroxide to make a 125-mL solution and then titrates it with…

A: Since you have asked a question with multiple sub-parts, as per our company guidelines we are…

Q: HF + SIO₂ → H₂SiF + H₂O Write the balanced reaction in the space below. balanced reaction: How much…

A: Given  Equation =                    HF + SiO2 --------> H2SiF6 + H2O  Moles of HF = 3.00 moles…

Q: 2. Why is there a need to adjust the acid concentration of Group I cations before saturation with…

A: The elements that are in group 2 of the periodic table are called alkaline earth metals. They are…

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.