mass

Q: 10 ppm is. O 10 g per liter. O 10 mg per liter. 10 kg per liter.

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Q: Arrange the following substances in order of increasing boiling point: CH3CH2OH, HOCH2CH2OH, CH3CH2C...

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Q: 73.0 O B A 5.11 OE 1.0 -78.5 -56.4 31.1 Temperature ("C) At what pressure and temperature solid and ...

A: The given graph is vapour phase diagram of a compound having a triple point at point D. The triple p...

Q: For butane, the ∆H° of vaporization is 22.4 kJ/mol and the ∆S° of vaporization is 82.3 J/mol･K. At 1...

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Q: 1. Give three (3) substances that should not be weighed in an electronic balance. Explain why. 2. Wh...

A: To name 3 substances that should not be weighed in an electronic balances

Q: 6. The molar conductivity of Mg(NO3), is 2.488 x 10-2 S m? mol-1. If the molar conductivity of Mg2+ ...

A: Given molar conductivities Mg(NO3)2 = 2.488 × 10-2 S m2 mol-1 Mg2+ = 1.060 × 10-2 S m2 mol-1

Q: Articles on the topic of synthesis and characterization of descriptive compounds with the study of t...

A: Synthesis and characterization is very important in the field of chemistry and recently the crystall...

Q: Antimony, Sb has 2 isotopes and an atomic weight of 121.75 amu. The isotope anitimony-121 has a natu...

A: Given percentage abundance  Sb-121 = 57.25℅ Sb-123 = 41.75℅ Mass of Sb-123 = 122.9041 amu atomic mas...

Q: Draw Lewis structures for the following free radicals. (a) The ethyl radical, CH3-CH2 (c) The isopro...

A: The drawing for lewis structure of given radicals are pictorially shown below

Q: Explain the relevance of the 1987 Montreal Protocol and its 2016 Kigali Amendment on regulating ozon...

A: Unlike the Vienna Convention, the Montreal Protocol lays down legally binding and measurable agreeme...

Q: 1. Draw the phase Diagram of a one component system which contain more than one solid phase and Expl...

A: the answer is as follows:  

Q: (Q73) A solution contains 23.99 grams of magnesium chloride and 935.7 grams of water. What is the va...

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Q: 3. Which of the following correctly states how the viscosities of a liquid and a gas will change wit...

A: Viscosity is the resistance to the flow of liquid or gas.   

Q: What is the freezing point of a solution made from 785.5 grams of benzene to which 60.9 grams of the...

A: Given, Mass of non electrolyte cyclohetene solute = 60.9 g Mass of benzene solvent = 785.5 g = 0.785...

Q: EXPERIMENT S: Fill in the table below with the results from the food experiment. Indicate "yes" when...

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Q: BrO-3(aq) + 5Br-(aq) + 6H* (aq) > 3Br2(1) + 3H20(I) The reaction between bromate ions and bromide io...

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Q: Temperature range (°C) Volume of fraction (mL) Composition Fraction 1 72.0 – 77.0 0.61 Fraction 2 77...

A: the conversion of a liquid into vapour that is subsequently condensed back to liquid form is called ...

Q: 4.00 mL of 6.00 x 10-3 M Fe(NO3)3 (6.00 times 10 to the minus 3rd power M F e (NO3)3) is added to 8....

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Q: Which of the following is arranged CORRECTLY according to the number of protons? O Na* > Mg?+ > F O ...

A: Given, Na+, Mg2+, F  We know that, Number of protons = atomic number 

Q: Calculate pKa values from the following Ka’s and vice versa: a. Nitromethane, Ka = 5.0 x 10^-11 b. ...

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Q: Lithium chloride (LiCl) has a lattice energy of -834.0 kJ/mol and a heat of hydration of –871.0 kJ/m...

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Q: why is ethane a nonpolar covalent bond? I get that it is because they have "equal" shared valence el...

A: Ethane (C2H6 ) is made of Carbon(C) and Hydrogen(H).  

Q: Which of the following gases has the highest effusion? Select an answer and submit. For keyboard nav...

A: The effusion of a gas depends on the molar mass of a compound. The heavier the element or compound t...

Q: 4. Choose the nonrenewable resourced that best match this description: low-carbon energy source. A. ...

A: 4) The energy that best matches the description : low carbon energy source is nuclear energy. Nuclea...

Q: Consider the following decomposition reaction: 2HI(g) → H2(g) + 12{g) At a particular temperature, t...

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Q: C: Determination of K, for a Weak Acid Volume Used(Liters) Moles 0.1 M HC,H,O, 0.0269 (L) HC,H,O, [N...

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Q: 1. In a neutralization reaction of I, + S,O,²- = |- + S,0,2- which relation is correct? * (a) V1N1/2...

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Q: Consider the reaction. 2 A(g) = B(g) Kp = = 2.48 x 10-5 at 500 K If a sample of A(g) at 2.50 atm is ...

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Q: Practical application on the knowledge about Chiral Molecules in food industry?

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Q: Why is malonic acid a diprotic acid

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Q: What is the difference between rate order and rate law?

A: In the Rate law expression , rate order terms are used.  Thus both are dependent on each other.  But...

Q: What are in the distillate collected from the distillation?

A: (1) A receiver

Q: change with temperature?

A: Viscosity is the resistance in the flow of liquids and gases . For liquids, As temperature increases...

Q: H NMR 11 10 8. 6. 4 2 ppm Mass Spectra C3H5BRO2 80 100 120 140 160 m/z arbitrary 04 0,2 0.8 90

A: A question based on spectroscopy that is to be accomplished.

Q: Name of experiment: Determination of percentage composition of an unknown sugar solution from viscos...

A: As per the guideline, since you have posted a question with multiple sub-parts, we have solved the f...

Q: .Alkalinity understand that is Measure of acidity. O Measure of basicity. O Measure of nationalize. ...

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Q: Which one hardness type that remain after boiling process. O Temporary hardness. O Permanent hardnes...

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Q: Some proteins are rich in disulfide bonds, and their mechanical properties such as tensile strength,...

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Q: ACTIVITY/EXERCISES Direction: Answer the following questions: A. 1. Draw the Lewis Structure for H2O...

A: Lewis structure is the structure which shows bonding between atoms of the molecule and line pair of ...

Q: Which of the following subshells is allowed? 4d5 O 1p2 O 3p7 O 2d3 O 3f2

A: The correct option is:  

Q: Above is the titration curve of a weak acid (200 mM acetic acid) and strong acid (0.1 M sodium hydro...

A:                         Solution to be prepared = Acetic acid                  [Acetic acid] to be p...

Q: 9. If Ksp and S are solubility product and solubility respectively then for Ag,CrO, 4 O a) Ksp = S %...

A: Given  Formula of compound    =  Ag2CrO4 Solubility product ( Ksp ) =  ?

Q: 6.00 mL of 8.00 x 10-3 M Fe(NO3)3 (8.00 times 10 to the minus 3rd power M F e (NO3)3) is added to 8....

A: Given that : Volume of Fe(NO3)3 = 6.00 mL Concentration of Fe(NO3)3 = 8.00 x 10-3 M Volume of KSCN =...

Q: 2. A certain second order reaction has a half-life of 58.0 s. Determine the time (in seconds) needed...

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Q: the orbital diagram of the following elements

A: In Thai question we have to draw the orbital diagram of Aluminium and Manganese. Also we have to exp...

Q: At a certain temperature, the K, for the decomposition of H, S is 0.725. H,S(g) = H,(g)+S(g) Initial...

A: First of all we have to construct ICE table to calculate the equilibrium pressure of each component....

Q: For which of the following reactions is the enthalpy change equal to the second ionization energy of...

A: Among the given reactions, the enthalpy change equal to the second ionization energy of nitrogen is,...

Q: Which indicator using in complexometeric and what the pH. Eriochromo red T and pH range is 8-10. Eri...

A: Answer of the question given below, 

Q: Complete the following answer using the data provided here: • Molecular formula: CSH1002 • Important...

A: we first need to see the it data which gives the idea about functional group. And NMR data will help...

Q: This is the spectral data for 4-cyclohexene-cis-1,2-dicarboxylic acid - Can you tell whether you hav...

A: Given   13C-NMR peak are δ 25.9, 39.2, 125.2, 174.9 There are total 4 peak given.  

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.