How many grams of H2 are needed to prodeuce 12.64g of NH3? Express your answer numerically in grams

Q: Let's consider an isolated system of two oppositely- charged particles. How does the magnitude…

A: The Concept used in this question is from inverse square law. We know that from coulomb's law F = K…

Q: 2. A marathon is 26.2 miles. How many centimeters are in a marathon? 3. Jules Verne wrote a famous…

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Q: 16.0 mol of P40,0 contains how many mates de p? Determine the molas do mn (doa) 2 Mass

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Q: Chemistry A technician in a hospital laboratory obtained a 5.0 mL sample of gastric juice taken from…

A: Answer: Gastric juice contains HCl acid, therefore this question is based on acid-base titration.

Q: What is the energy change when the temperature of 12.9 grams of solid tungsten is decreased from…

A: Specific heat capacity: Amount of heat or energy needs to be added to a material in per unit mass to…

Q: Use the following Lewis diagram for acetamide to answer the questions: H :0: th H- C 1 2 3 H H -H…

A: The molecular shape and bond angle of a compound can be determined by the state of hybridization and…

Q: Step 1: Find the Central Atom Central atom is: S Look your line bond structure on page 1. :0 - 5=0…

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Q: Identify the point(s) on the following diagram where the addition of heat will cause the temperature…

A: As seen from the graph there are 10 points where the changes occur .  Now , At point A, as the heat…

Q: 4 Hematite, Fe₂O3, is an important ore of iron. (An ore is a natural substance from which the metal…

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Q: What is the mass of 2.38 moles of AgNO 3 ^ prime ? Write your answer to 2 decimal places and include…

A: Given Number of miles of AgNO3 = 2.38 moles Mass of AgNO3= ?

Q: CP Solution A Solution B. Solution C PH (2 points each) 6.88 4 10.89 pOH (2 points each) 1 5 3.11…

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Q: an exhibit shows a peak at 2.4 minutes in a gas chromatogram. a sample of known heroin also has a…

A: Retention time is the time that a component spends in a chromatography after its injection. A sample…

Q: Many chemistry problems result in equations of the form 1.30 × 10-2 = 2 (0.209 x When this equation…

A: Given , Equation : 1.30×10-2=x2(0.209-x)

Q: Protein A Hydration layer H₂N- C=O---H-N -C-CH3 H₂ -CH₂ CH3 H₂C-C- H -C-CH₂ H₂ H₂C-C- H₂ CN-H--O C…

A: Protein: Building block of proteins is an amino acid. The amino acids make a polypeptide chain…

Q: Draw the organic product of the Lewis acid-base reaction shown below. Include all lone pairs and…

A: Lewis acid are those substance which accept electron pair while Lewis base are those substance which…

Q: Instructions: Compute for the following problems stated below. Express your final answer into 4…

A: Molecular weight is calculated by adding the atomic masses of all the atoms present in the molecule.…

Q: The longest wavelength of light that causes electrons to be ejected from the surface of a copper…

A: Given - Threshold wavelength of metal = 243 nm             Wavelength of incident photon = 200 nm

Q: The gas phase decomposition of dimethyl ether at 500 °C CH3 OCH3(g) →→ CH4 (9)+ H₂(g) + CO(g) is…

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical…

Q: What was the evidence Thomson found in order to support the discovery of the electron?

A: The findings of Thomson in order to support the discovery of the electron.

Q: Aluminum sulfate, Al2(SO4)3, is used in some antiperspirants. a. How many moles of S are present in…

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Q: The major product of the following reaction would be: mic C₂Hs OH CH₂SO₂CI base Product CH,CO

A: In the first step -OH group is converted to -OSO2CH3 and in the second step Sn2 reaction occurs.…

Q: When 367. mg of a certain molecular compound X are dissolved in 55.0 g of cyclohexane (C6H12), the…

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Q: Determine the most likely charge on an ion from an element in group 15 (the group headed by…

A: We are required to determine the charge on an ion from an element in group 15

Q: Copper was determined in a river water sample by atomic absorption spectrometry and the method of…

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Q: how many sp2 hybridized carbon?

A: sp2 hybridized carbons form a pi bond.Hence by identifying the pi bonds we can calculate the number…

Q: A mechanical engineer trainee is trying to study the combustion of natural gas, which is primarily…

A: Molar mass of a compound is equal to sum of atomic masses of all atoms present in that compound.…

Q: Which of the molecules, CO2, NH3 and BCl3 will be polar?

A: Non polar compounds will have non polar bonds or polar bonds in which dipoles cancle each other.

Q: ● . Electrons scattered throughout . (a) Expected Results Diffuse positive charge Assuming that the…

A: •Here alpha radiation are bombarding on atom. •Arrows are streams of the alpha radiation and in…

Q: Identify the modes of catalysis and when / why they occur • Acid-base • Covalent • Transition state…

A: As per the rules, only the first three sub-parts can be answered. Please re-submit the question for…

Q: Which ground state elements corresponds to the following electron configurations? [Xe] 4f^14 5d^6…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: 1. Explain why egg whites and milk are used as antidotes for heavy metal poisoning.

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Q: 3 An organic acid is composed of carbon (45.45%), hydrogen (6.12%), and oxygen (48.44%). Its…

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Q: The enthalpy change for the following reaction is -92.2 kJ. Using bond energies, estimate the H-H…

A: E N2 = 945 kj/mol E N-H = 391 Kj/mol E H-H = ? enthalpy = -92.2 kj

Q: The following type of compound bond does not separate in water: O a Covalent Bond O blonic Bond OC…

A: There are various types of bonds: covalent bond, ionic bond and hydrogen bond. Ionic bonds are…

Q: For al reaction in which A and B react to form C the following initial rate datter wer obtained [A]…

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Q: Arrange the values according to magnitude.

A: The given numbers are: 2.0×105630003.6×10-27.3×10-69.0×10-6 To arrange the given numbers from…

Q: A certain pickup truck gets 16 mpg in the city and 28 mpg on the highway. If the driver drives 490mi…

A: • The values provided in the question are:-  i) Mileage of pickup truck in city = 16 mi/gal  ii)…

Q: Select all of the following that may be held together by electrostatic forces: an entire atom a gas…

A: The electrostatic force, also known as Columb's force  is an attractive as well as repulsive force.…

Q: Explain whether its solution requires qualitative or quantitative analysis.

A: Qualitative Analysis: simply the chemical analysis in which the identification of the components…

Q: Please type, not handwriting. 1.8) Calculate the densities of Ge and GaP from the lattice constants…

A: Given: Lattice constant for Ge =5.66A° and Lattice constant for GaP= 5.4505 A° To calculate: Density…

Q: Assume that ander waal's "B" parameter can be ignored 1) Derive an equation for the work done in an…

A: Isothermal process is a thermodynamic process wherein the temperature of the system remains…

Q: In the resonance structure for the carbonyl group the charges on the atoms are

A: Given compound is organic compound as it contain carbon and hydrogen atoms.We have given the…

Q: Calculate % transmittance if 85% of light was absorbed by an analyte sample in an UV-Vis…

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Q: What are all the possible resonance structures (contributors) for the compound below? Please draw…

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Q: 1. Compute for the Molecular Weight, Eq. Wt, GEW, mEq and GmEq for every 200 grams c. Phosphoric…

A: Molecular weight: Molecular weight is the sum of the atomic masses of all atoms in a molecule.…

Q: The complete electron configuration for Au³+ is, A. 1s²2s²2p 3s²3p6 4s²3d¹04p6 5s²4d¹05p6…

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Q: For this heterogeneous system 2 A(aq) + 3 B(g) + C(1) 2D(s) + 3 E(g) the concentrations and…

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Q: write the acid-base reactions for benzoic acid and p-bromoaniline showing the neutral and charged…

A: Salt fromation will take place which is neutral in nature .

Q: Water is the solvent of life, yet it only dissociates to a small extent. What is the pKa of water?…

A: Since, water behave as a weak electrolyte, in the pure state, water is dissociated to a very small…

Q: rawing resonance structures shows ways a molecule vibrates back and forth between two diff True…

A: Resonance structures are used when movement of electrons in one Lewis structure for a single…

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.