How many moles of atoms are in each elemental sample? 2.21×10−2 g Li

Q: The water being boiled is pure water. When the water is heated the kinetic energy of the water…

A: This is a phenomenon described practically from its molecular level.

Q: Но б

A: It is basics in the organic.  Here we have pass the negative charge or the lone pairs, where they…

Q: If five extractions with 100 ml portions of ether extract 90% of a solute from an aqueous solution,…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What do we call an atom that gains electrons and what type of charge will it have? hat do we call an…

A: Since, In a compound gain or loss of electron is a property of atom. Metals are loss of electrons.…

Q: 1. 0.5 mole of monoatomic ideal gas, initially at 45 °℃ and 1 bar, is heated and allowed to expand…

A: Given - Moles of monoatomic ideal gas = 0.5 mole             Initial temperature = 45°C…

Q: 11. Atmospheric pollution such as SO₂ is a problem that has received a lot of attention. While…

A: Given that -  Mass of SO2 gas emitted by Kilauea volcano = 200-300 tones (300 tones maximum in a…

Q: Hydrogen and iodine react to form hydrogen iodide, like this: H₂(g) +1₂(g) → 2 HI(g) Use this…

A: Given Reaction: H2 (g)+ I2 (g)  → 2HI (g) We have to find i) The amount of HI which will be present…

Q: An ice freezer behind a restaurant has a freon leak, releasing 30.68 g of C₂H₂F3Cl into the air…

A: Freon is a type of gas composed of carbon chlorine and fluorine. It is also called as…

Q: 1. Unit conversion lang! From the Equipartition Theorem and Dulong-Petit Law, compute the specific…

A: According to Dulong-Patit law, the molar specific heat capacity of any substance is equal to 3*R.…

Q: A compound, NaClOx, where x is unknown, was found experimentally to contain 29.0 % of chlorine by…

A: Given :  1.Given compound is NaClOx  2. %of chlorine by mass is 29.0 %  To find : value of x

Q: Positive I: CHUH positive 2: CH₂OH 1 C:0 HO H || Ho H •H H positive 3: 애애 dyo -3H₂O 자 +2 +5개 OH 애 24…

A: Since you have asked a multiple sub-part question, we will solve first 3 sub-parts for you. For…

Q: Write condensed structural formulas, and skeletal structures for each structural isomer of C4H10.

A:

Q: In this same equation, what if we wanted to know the mass in grams of oxygen gas that can be…

A: In this question, we have to answer if 0.748 grams of KO2 is given, the mass in grams of oxygen gas…

Q: explain

A:

Q: What is the long-hand electron configuration of chromium(III), Cr³+ ion? Enter the electron…

A:

Q: On a blank sheet of paper, draw block diagrams of the orbitals expected for the two nitrogens,…

A:

Q: Which technique is more accurate for determining the pH of an unknown solution? Use of indicators or…

A: pH is defined as negative logarithm of hydrogen ion present in the solution. If pH is less than 7,…

Q: B D =H² 1 2 A Έ с V eclipsed staggered

A: both wedge - dashed projection and newmann projection are 3 dimensional representation of a…

Q: ethan-1-ol

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

Q: Chemistry Write the balanced chemical equation, including the physical states, for the reaction…

A: The complex, [Zn(NH3)4]2+(aq) present in the test solution has formation constant, Kf = 4*108  The…

Q: Balance the equation. equation: U(s) + F₂ (g) = UF(g) Write the reaction-quotient expression, Qc,…

A:

Q: Select the correct name for the alkene seen below: (E)-3,5-dimethylhept-3-ene…

A:

Q: Calculate the pH of a solution prepared by mixing 1.50 g of imidazole with 1.50 g of imidazole…

A: Imidazole hydrochloride (BH+Cl-) is the weak acid and imidazole(B) is the conjugate base in the…

Q: How do I explain my reasoning for G29?

A: The acceptable standard for lead in drinking water is 10 ppb  The detection limit of the equipment…

Q: What are the energy transformations in a fossil fuels power plant? to to :: chemical energy ::…

A: To answer:  A] What are the energy transformations in a fossil fuels power plant? B] List the energy…

Q: Which technique is more accurate for determining the pH of an unknown solution?

A: A pH electrode is the best technique which is more accurate for determining the pH of unknown…

Q: An ideal gas, initially at 320.K and 3.10 bar, is expanded to a final pressure of 1.00 bar. The Cpm…

A: Answer: Given data: Cp=52Rn=1.2molT1=320KP1=3.10barP2=1.0bar

Q: Which of the following statements is true about elements B, Li, and O? Oxygen has the highest…

A: B belongs to the group 13 or 3A and period 2 in periodic table. Li belongs to the group 1 and period…

Q: What is the difference between covalent bonding and non-covalent interactions?

A:

Q: 7. Which of the following conditions will result in Keq being less than 1 for the following…

A: When Keq is less than 1, the reverse reaction is favored i.e the reaction is shifted towards the…

Q: QUESTION: Determine the cubic structure of platinum if it forms a unit cell with a volume of 0.0595…

A: BCC: Body centred cubic cell: In this type of unit cell, there are 8 atoms at the corner and 1 at…

Q: An oligopeptide, 6 amino acids in length, was subjected to acid hydrolysis and yielded equimolar…

A: Here we are required to find the amino acid present at position 5 of the oligopeptide.

Q: 3. On the prelab you identified CaCO3, Na2CO3, and NaHCO3 as the three compounds that produce…

A: Question 3 Given: CaCO3, Na2CO3, and NaHCO3  produce bubbles of gas when vinegar is added. These…

Q: In this experiment you will do qualitative analyses to determine the identity of unknown compounds.…

A: Qualitative analysis is an analytical method used to identify the components of the unknown sample…

Q: Calculate the standard change in Gibbs free energy, AGxn, for the given reaction at 25.0 °C. Consult…

A:

Q: 11. Would you expect the fraction of dissociation to change in a phenol solution if a large amount…

A: To explain whether the fraction of dissociation changes in a phenol solution if a large amount of a…

Q: E2-5 Draw as many resonance structures as you can for the following spe- pelom bool nature cies,…

A: The molecules given are  (a) Nitromethane  (b) Ozone  (c) Diazomethane

Q: How many molecules are there in 345.2 grams of HCl?

A: 1 mole = 6.022×1023 (Avogadro's number) The mass of one mole of molecules of a substance is called…

Q: Shown below, a student spotted the three-component mixture onto a TLC plate and developed it using…

A: To provide the order of the given molecules on the TLC plate developed using the 4:1 DCM:MeOH as the…

Q: Draw the resonance structure of compound B- showing the effect on the C-4. Circle the effect on C-4…

A:

Q: a. Graph and explain the relationship between the reaction rate and the enzyme concentration. b.…

A: In biology, chemical reactions are often supported by enzymes, biological molecules made of proteins…

Q: The unbalanced reaction for the combustion of pentane (C5H12) is: C5H12 + O2 ⟶ CO2 + H2O If the…

A: The Answer to the following question is-

Q: 8. A solution is prepared by dissolving 1.23 g of 2-nitrophenol (FW 139.11) in 0.250 L (pK₂ of…

A:

Q: A mixture of He and N2 gas is contained in a tube at 298 K and 101.32 kPa total pressure. At one…

A: Given,  Let He be dented by A. Let N2 be denoted by B. At point 1, Pa1 =60.79 kPa,  At point 2, Pa2…

Q: 5. At 320 K and 16 bar, the molar volume of ammonia, NH3, is about 10% less than that of an ideal…

A: In real gases there are intermolecular forces among the gas molecules. This attraction force…

Q: Two thousand kilograms of a 94% NaNO3 solution in water is at a temperature of 100oC. This is sent…

A:

Q: Explain in detail the synthesis and structure of ZSM-5 zeolite.

A: ZSM-5, Zeolite  is an aluminosilicate zeolite belonging to the pentasil family of zeolites. Its…

Q: Does CHBrClF contain a plane of symmetry? is it chiral and does it contain a stereocentre

A: Chiral carbon: The sp3 hybridized carbon atom that is attached to the four different types of atoms…

Q: Create a model that explains a nuclear reaction within the context of its application :  Nuclear…

A: Here, I answer the first 3 question . Nuclear reaction: When one kind of nuclei reacts with another…

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.