A Weather ballon is filled with 1.1 L of helium at 21 degrees celcius and 0.50 atm. what volume does the balloon have when it has risen to a point in the atmosphere where the pressure is 210 torr and the temperature is -35 degrees celcius?

Q: Question 21 A heterogeneous catalyst O Exists in the same phase as the reactants and products O…

A: A catalyst which exists in different phases from the reactants is known as heterogeneous Catalyst .…

Q: 2. Answer All Parts (a) For the following compounds, indicate whether the atoms, groups or faces…

A: Here in the above structures we have to determine whether the indicated groups and face are…

Q: Consider the reaction 3X + 2Y → 5C + 4D With excess Y, how many moles of X are needed to produce…

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Q: The molecule SİH4 is non-polar. Select the IMF(s) that it can participate in. O Dipole-dipole O…

A: In the given question we have to identify the intermolecular force participate in the given…

Q: V. (FREE) R&B x Trapsoul Type X 404 - File or directory not fo x OWLv2 Online teaching an X…

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Q: Using the bond enthalpy data from the table below, estimate the enthalpy of reaction (kJ/mol) for…

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Q: TRUE OR FALSE: Reductive amination is a 1-step reaction with a Nu adding to the carbonyl carbon and…

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Q: Consider the compounds belowz show how Hinsberg's Method for Characterizing Primary, Secondary, and…

A: Hinsberg test is used to distinguish primary, secondary and tertiary amine.

Q: At a certain temperature the reaction: CO(g) + Cl2(g) ⇌ COCl2 (g) Determine the Kc given the  [CO]0…

A: The Kc is the equilibrium constant which is defined as the ratio of the concentration of the…

Q: Calculate the enthlapy of reaction (ΔH) in kJ for the reaction: 2A + B → E       ΔH =? Given these…

A: Answer: Enthalpy change for a chemical reaction is an extensive property, therefore it can be added…

Q: Explain why this compound is highly unstable?

A: The bond angle of the tetrahedral carbon atom (sp3 hybridized carbon atom) is 109o28'. In the…

Q: 16. Most nuclear reactions are controlled by substances that are good at catching neutrons. Which…

A: Control rods are used in nuclear decay process to control the neutrons Which can lead to chain…

Q: Which one(s) of these ways will convert benzene into benzoic acid? a) 1. Br2/FeBr3 2. NaCN 3.…

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Q: 10. Based on the VSEPR theory, a molecule MCI3 was found to have sp’ hybridization at the central…

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Q: Draw the structure of the products of the following reactions Aniline + BSC, excess NaOH (DRAW…

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Q: For 4130 steel, how many atoms per carbon atom are there? Please show work.

A: For 4130 steel, the amount of iron atoms present are alomst 98%. There is maximum percentage of iron…

Q: Complete Structure Shortcut Alkynes Cycloalkynes (if applicable) Structure Ethyne Propyne Butyne…

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Q: In the chemical engineering lab last week, the complete decomposition of 435.8 g of ammonium…

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Q: What mass of CASO4 will precipitate after mixing 50.0 mL of 0.020 M Ca(NO3)2 with 50.0 mL of 0.0080…

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Q: Lithium/iodine batteries are commonly used in pacemakers. The chemical reaction involved in this…

A: Detail description is given below

Q: Which of these is aromatic

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Q: Given the following physical and chemical properties suggest at least one used in society for the…

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Q: It's 32°F (0°C) outside under normal atmospheric conditions (1 atm) at a stunt performer's birthday…

A: Ideal gas equation can be used to calculate volume.

Q: ochemistry Oxidation of iron metal in the atmosphere is responsible for the formation c practice to…

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Q: For the reaction: ClOOCl + light → ClOO +Cl, the wavelength of light needed to initiate the reaction…

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Q: What is the hydronium ion concentration in a solution that has a pH of 8.34?

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Q: Which of the following is a physical property? O chlorine gas will not burn O chlorine can be used…

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Q: How does Le Chatelier’s principle impact the examples of equilibrium in daily life shown in the…

A: when we dry clothes, due to breeze, water vapours in near by air are removed or carried away. to…

Q: Provide reagents/conditions to accomplish the following syntheses. Several steps are required in…

A: Amines react with aldehydes and ketones via reductive elimination process to give primary, secondary…

Q: प्प्रीचे hयिणा चेheवलबवेर ण 2 तिठा एकव) क MTKS )- > 1Rg3)7मामবেদ) •(i) Ag is oxidized ) N ঠजल्लपcedे…

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Q: decomposition of baking seda expecaiment actuatyietat of VWa co is 10789 অत्य प्रथंन का if peccent…

A: In this question, we want to determine the theoretical yield of the product by using percent yield…

Q: How

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Q: At 25.0 °C the Henry's Law constant for nitrogen trifluoride (NF) gas in water is 7.9 x 10 "M/atm.…

A: The correct answer is given below

Q: A student in class  wants to make a buffer, so they use some HCl (aq) and NaCl (to give the…

A: Buffer: A solution of mixture of a weak acid and the salt of the same acid with a strong base A…

Q: 3. for an FCC lattice calculate the structure factor Sk.

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Q: Answers true or false to these statements: 1) The freezing point of aqueous 2.5 m CuSO4 is…

A: Here we have to predict the true or false statements .

Q: or each of the following sets of volume/temperature data, calculete the missing quantity after the…

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Q: What is the pH of a solution with [H3O+] = 4.5 x 10-5M?

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Q: hat is the standard cell potential of the following electrochemical cell at 25°C: i(s) | NiCl2(aq)…

A: Given-> Ni(s)/NiCl2(aq)//Cu(NO3)2(aq)/Cu(s)

Q: 4. Which nuclide is written in isotope note 18 80 O so 59 27CO O iron-56 89 39Y

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Q: Calculate Enthalpy of fusion and entropy of fusion

A: When a phase change of a substance takes place , heat changes also takes place, the heat change per…

Q: An object has a mass of 157.7 g and a density of 11.5 g/cm. Determine the volume of the object in…

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Q: E is the change in enthalpy associated with the change in the r's temperature? The specific heat of…

A: Change in enthalpy= -mc∆T m= mass of water  c = specific heat  ∆T = change in temperature

Q: In HPLC, fill in the blanks with the choices below: - chromatogram retention time void volume…

A: To fill in the blanks for HPLC:

Q: Which of the following are cations? [select all that apply)] Ca2+ O BrO4 O C2+ O F2

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Q: 1. a) Describe Ph and Buffers for parental drug delivery? b)Explain the differences between PMDIS…

A: The pH value is one of the critical aspects of parenteral preparations, which should be as close to…

Q: In order to form a tertiary alcohol excess CH3MgBr could react with: HO. A A, C, and D A, B, and D A…

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Q: Chemistry Give the products of the reaction of 1 mole of 2-methy1-1,3-pentadiene with 1 mole of…

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Q: Name the following compounds: a. Br C.

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Q: 3. The hybridization (sp, sp2..) around each carbon in ethene is and the bond angles around each…

A: The valancy ofcarbon is 4, so there will be 4 bonds around the carbon atom. If the all 4 bonds 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.