molarity

Q: 26-30. About how old is a piece of wood from an aboriginal burial site that has a carbon-14 (half-li...

A: The carbon-14 initial activity rate, Ao = 15.6 counts per minute per gram The carbon-14 activity rat...

Q: (3 points) Draw the products of the following acid-base reaction. You can just modify the starting a...

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Q: 1. How can you identify betwoen hydrogen bonded O-H and free (non-hydrogen bonded) 0-H stretching th...

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Q: 1.) Is acetone a london disperse force, dipole dipole, or a hydrogen bonds? Explain. 2.) Is vinegar...

A: There are different types of forces act between the molecules:- Hydrogen bonding Dipole-dipole attr...

Q: Is ethyl alcohol a london disperse force, dipole dipole, or a hydrogen bonds? Explain and Why.

A: There are various types of intermolecular forces present in the molecules such as hydrogen bonding, ...

Q: 4. Find out the corect order of increasing wavelongth in UV-vis spectroscopy for the molecules and e...

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Q: of hydroxide ions in

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Q: Which of the following statements is correct for alkyl halide? a.   Alkyl halide will always show ...

A: Option B is correct because if branching increases nucleophile can't attack on the electrophile due ...

Q: 14. The Kp of PbSO, in water at 25°C is 2.13 X 108. It's molar solubility is ...

A: Given,

Q: The gas phase decomposition of NO2, 2 NO2(g) → 2 NO (g) + 02(g), is studied at 383 °C, giving the fo...

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Q: What is the name of the alkali metal that is in period 4? What is the name of the halogen that is in...

A: • Potassium is the name of alkali metal is in period 4 •Astatine is the name of halogen in period 6

Q: Trial [A]o [B]o [Clo Rate 1 0.10 0.20 0.30 0.063 2 0.30 0.40 0.20 0.084 3. 0.60 0.40 0.20 0.168 4 0....

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Q: Be sure to answer all parts. Determine the concentration of an aqueous solution that has an osmotic ...

A: Given that: Osmotic pressure = 4.1 atm Temperature = 37°C = 310 K Concentration of glucose solution ...

Q: how can the homogeneous equilibrium be attained by determining the equilibrium constant? explain in ...

A: So, first we start from defining equilibrium state. The state of chemical reaction when thr concentr...

Q: 7. Discuss with your group: what are other 1ons which máy be in a multivitamin that could make the q...

A: There are many ions other than Zn that are beneficial for health and make Zn detection difficult

Q: Which of the following statements is TRUE? Group of answer choices Adding a solute to an aqueous sol...

A: The solution is given below - 

Q: (c) How many signals would you expect in 13ć-NMR of the following compounds? OMe OMe (A) (B}

A: Chemically different carbon atoms show different peaks in 13c -NMR spectrum

Q: Draw TWO (2) possible pairs of geometric isomers for the cyclic compound C6H8O2.   ##please also p...

A: The molecules with the same molecular formula but different structures are known as isomers. If the ...

Q: How many moles of helium gas occupy a 46.76L tank that is held at STP?

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related to the ideal ...

Q: Balance each of the following using the half-reaction method for BASIC SOLUTION.

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Q: What volume of 0.175 M sodium phosphate, Na3PO4, solution is necessary to completely react with 95.4...

A: Reaction                              Na3PO4 (aq) + CuCl2 (aq) -------> Cu3(PO4)2 (s) + NaCl (aq)...

Q: Draw the orbital shapes for the central atom and then include the overlapping orbitals forming the c...

A: Answer -

Q: For the hypothetical reaction A + 3B -->2C, the rate of appearance of C, given by ( A[C]/At, may als...

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Q: 5. The tase peak observed in Mass-spectrum for the tolowing compound at miz 43. Predict the most pro...

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Q: Directions: Write the four quantum numbers corresponding to the electrons described below. Quantum N...

A: Concept based on the quantum numbers of electrons in different orbitals.

Q: 6. Calculate the polydispersity of the polymer sample in the colloid solution having 1:2:1 ratio of ...

A: Polydispersity index is the ratio of weight average molecular mass to the number average molecular m...

Q: Express the following numbers in fixed notation (e.g., 1.23 x 102- 123), and give the number of sign...

A: Given,  Express the following number in fixed notation and give number of significant figures in eac...

Q: What is the effect of eletrolytes and nonelectrolytes in the colligative properties of solutions?

A: Solution is made up of solute and solvent. The substance present in small amount is solute and subst...

Q: Which molecules can hold more drops on 1 peso coin? Is it water, ethyl alcohol, vinegar or acetone

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Q: What is the molarity when 41.5 g Glucose (C6H12O6) is dissolved in 252 mL Water?

A: Given: Volume of water = 252 mL = 0.252 L                                             (Since 1 L = 1...

Q: Find the binding energy per nucleon predicted by the semiempirical binding

A: Mass of proton = 1.007825 u Mass of neutron = 1.008665 u Mass of Hg = 199.968316 u Mass of 80 proton...

Q: The rate law for a given reaction is rate = k[reactant]?, with k = 2.64 x 104 M-1 min1. If the initi...

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Q: Question 1 Select each of the following statements that are true in relation to the property "standa...

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Q: Calculate the p-functions for each ion in a solution that is: (a) 0.0100 M in NaBr. (b) 3.5 103 M in...

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Q: 3. Find the corract order of chemical shit value of proton in H NMR for the following molecules. Exp...

A: It can be answered looking at electronegativity value of C and H which significantly affect chemical...

Q: a) +3, -1 b) +2, U Q14: salenH2 ligand prepared by b) condensation of salicylaldehyde (1 equiv.) and...

A: salenH2 ligand is prepared by:

Q: c). The traditional way of comparing reactions is by the percentage yields. However, percentage yiel...

A: Introduction :  Atom Economy can be defined as the measure of how many reactant atoms actually ends ...

Q: Trial 1 Tria AVERAGE DENSITY OF METAL g/cm? STANDARD DEVIATION g/cm Sample number nono

A:     The densities of metals which are given in three trials are 9.420, 9.949 and 9.924 g/cm3.  So, t...

Q: 20. Which of the following is a major product of the reaction in the box? – An alternative way of pe...

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Q: O Describe the term "strong field ligand" and "weak field ligand".

A: Strong field ligand = Strong field ligands are those which gives greater splitting of the crystal fi...

Q: (1). NaOCH3 O2N `NO2

A: ORGANIC REACTIONS

Q: Experiment name: Elevation of the boiling point. Q.1:-Purpose Q.2:-Theory Q.3:-Discussion

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

Q: Fertilizer Chemical %N %P %K or Material Composition %Cl or %S Urea Ammonium phosphate Ammonium sulf...

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Q: (c) Highlight the difference between COSY-45 and COSY-90 and mention their applications.

A: Correlation Spectroscopy (COSY ) shows the correlation between hydrogens which are coupled to each o...

Q: UV-Vis : 248 nm IR : 3060 cm-, 3020 cm-', 2820 cm 2750 cm-1, 1675 cm 1450 cm-, 750 cm-1, 680 cm 1675...

A: the structure is as follows:  

Q: 1.) Is water a london disperse force, dipole dipole, or a hydrogen bonds? Explain.

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next ...

Q: Round each number to 3 significant figures SHOW YOUR WORK a. 10.776.522 B. 999902 X 10^6 C. 1.349999...

A: We have been asked to round off to 3 significant figures. 1) Number after is decimal if the number i...

Q: Match each bond with its type. The type may be used more than once. Cs-F O-H C-H С-F С-С : nonpolar ...

A: The correct bond types are given below

Q: 9. A solution with a pOH of 4.65 at 25°C has a pH of .

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Q: Buffer solutions are used by the human body to maintain a constant pH for biochemical processes such...

A: Ka = 1.85 × 10-5 [ CH3COOH ] = 0.150 M [ CH3COO- ] = 0.150 M pKa = -logKa    

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.