How many grams are contained in a 0.893 mol sample of methane, CH4?

Q: A chemist adds 175.0 mL of a 3.57 × 104 umol/L calcium sulfate (CaSO4) solution to a reaction flask.…

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Q: on the factors that influence conjugate-base stability, determine the position of the equilibrium…

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Q: Which of the following will exhibit the greater polarizing power? Explain a. K+ and Ag+  b. K+ and…

A: Answer:- The polarising power is defined as the ability of a cation to distort the anion in an ionic…

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) MnO2 + CrO3 → Mn + CrO4 - CONTENT SHOULD…

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Q: o For the cell shown, the measured cell potential, Ecell, is -0.3575 V at 25 °C. Pt(s) | H₂(g,0.793…

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Q: 3. An EDTA solution is 0.0406 F in EDTA. If the pH of a solution is 10.250 and the K, values of EDTA…

A: The fraction of EDTA in EDTA4- form is αY4- and we have [Y4-] =[EDTA4-].

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) MnO2 + CrO3 → Mn + CrO4 CONTENT SHOULD…

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Q: According to the following reaction, how many grams of sulfur trioxide will be formed upon the…

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Q: A pollutant is being removed in a batch reactor by a 2nd order reaction. 1) Write the rate  equation…

A: Given data  2nd order reaction initial concentration is 300mg/L concentration reduces to 100mg/L at…

Q: What will happen to the pH or pure water if 5.0 grams NaNO3 is added? (Hint: Split the compound…

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Q: Choose the letter of the pair considered as ERRONEOUS/INCORRECT. N20 dinitrogen oxide CO2 carbon…

A: Given -> N2O  CO2 P5O9 CCl4

Q: What are the rules we should follow when handling reagents and solutions to prevent contamination?

A: There are some general rules that we should follow while handling reagents and solutions to prevent…

Q: According to the following reaction, how many moles of water will be formed upon the complete…

A: From balance reaction two mole of hydrogen sulfide react with three mole of oxygen and produced two…

Q: How many sodium ions are present in a 1.73 L solution of 0.638 mM Na2SO4? Report your answer using…

A: Given, Molarity of Na2SO4 = 0.638× 10^(-3) M  And volume = 1.73 L    NA = avagadro's number

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) SO2 + O2 → SO3 CONTENT SHOULD BE THESE…

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Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) Fe²+ + Cr → Fe + Cr³+ CONTENT SHOULD BE…

A: To balance the given redox reaction, we need to check the oxidation state of atoms . From this we…

Q: Covalent bond is formed by transfer of an electron from one atom to another and the consequent…

A: Most of the chemical bonds present in nature are mainly two types which are, (i). Covalent bond and…

Q: ded for this question. An aqueous solution of perchloric acid is standardized by titration with a…

A: Given data :

Q: Write the net ionic equation for the following molecular equation. NaCH3COO(aq) + Hl(aq) = Nal(aq) +…

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Q: outline of the respective groups. (1), barium, arsenic (III), cadmium, and so , lead, chromium (111)…

A: Qualitative analysis is the method that involves precipitation reaction to remove the cations from a…

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) Fe²+ + Cr → Fe + Cr³+ CONTENT SHOULD BE…

A: this is a redox reaction where reduction and oxidation occur simultaneously.

Q: A KNO3 solution is made using 98.4 g of KNO3 and diluting to a total solution volume of 1.60 L.…

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Q: 1. Calculus review. Derive expressions for the partial derivatives (3) T and following equations of…

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Q: How many gram Ba(OH)2 will be needed to  make 200 ml 8% Ba(OH)2?

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Q: Suggest an explanation for the observation that the heat of fusion of a substance is always smaller…

A: The heat of fusion is the amount of heat required to convert solid into a liquid while that of heat…

Q: Sucrose or table sugar has the formula Call On What is the mass of 1.00 x 100 molecules of sugar.…

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Q: Suppose we have a reaction with the stoichiometry A + 2B → C. If we triple the concentration of A,…

A: Chemical Kinetics is branch of chemistry that deals with speed at which rate of reaction occurs. In…

Q: In order to evaluate transport properties with ideal gases, one must specify these parameters…

A: Ideal gases are hypothetical gases, in which their molecule doesn't have any attraction or repulsion…

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) SO2 + O2 → SO3 CONTENT SHOULD BE THESE…

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Q: Consider the reaction below.  4.6 mol of A and 8.4 mol of B are added to a 8.0 L container.  At…

A: Concentration of species is equal to ratio of mole of species to it's volume

Q: Consider the chemical reaction 4 K(s) + O2(g) ──> 2 K2O(s) The molar mass of K is 39.10g/mol, and…

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Q: What happens to the equilibrium position of an exothermic reaction when you remove heat? shifts to…

A: From La Chatelier's principle we know that if a system is in equilibrium then if we change any of…

Q: The bromide ion concentration in a solution may be determined by the precipitation of silver…

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Q: Which of the following is the basic unit of volume in the metric system?  Group of answer choices…

A: Basic unit of mass in the metric system is kilogram or grams.

Q: Methanol is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen: CO(g)…

A: Given -> CO(g) + 2H2(g) <-----> CH3OH(g)  Volume= 1.05 L  At equilibrium -> Mole of…

Q: what is the color rating for dichloromethane, ethanol, biphenyl, hexane, methyl orange, and…

A: Color rating are as-  Dichloromethane (red 1, blue 2, yellow 0, white  ) Ethanol (red 2, blue 3,…

Q: 1 2 3 4 5 6 7 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 43 44 45 46 47 48 49 50 51 52…

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Q: What is the wavelength of light with a frequency of 5*1014Hz   Question 3 options:   1200 nm…

A: Recall the data, Frequency=5*1014 Hz wavelength =?  1 nm = 10-9 m

Q: Use dimensional analysis to compute what mass of silver (in grams) would have a volume of 40.3195…

A: Given Volume of Silver (Ag) = 40.3195 cm3

Q: Titus titrates 45 mL of 0.750 M lactic acid (HC₂H₂O₂, Ka NaOH. = 1.5 x 10 4) using 0.250 M Calculate…

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Q: In the laboratory you dissolve 18.7 g of ammonium fluoride in a volumetric flask and add water to a…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: 186 Re is used in the treatment of bone cancer. The half-life of 186 Re is 3.72 days. If you begin…

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Q: 10 (A) At 115.3°C 7.01 X106 X 106² (10 Date Page the kp for the reaction is LA +5B = 4AB what is Keq…

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Q: Write an acceptable IUPAC name for the compound below. Include 'cis' and trans' as part of the name…

A: Since, Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more…

Q: when the following equation is balanced properly under basic conditions, what are the coefficients…

A: We are given an unbalanced equation  ___Ag2O + ___S2- ---> ___S + ____Ag we need to balanced the…

Q: 2. Given: Find: Cr₂(SO4)3 1.26 M mole fraction, density, and % w/w 1.37 m

A: Since the given question is a multiple question, hence I solved first quy according to rules of…

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) Fe²+ + Cr → Fe + Cr³+ CONTENT SHOULD BE…

A: The given redox reaction is Fe2+ + Cr →Fe + Cr3+. We have to balance the given redox reaction.…

Q: What is the chemical formula for the structure that is formed after citric acid donates its protons?…

A: Citric acid is tricarboxylic acid that means it has three carboxyl functional groups. Acid has…

Q: What is the exact mass of the following molecule? (3 decimal) www.

A: Given  Structure find out the Exact Mass

Q: 36 > Macmillan Learning A current of 6.00 A is passed through a Sn(NO3), solution. How long, in…

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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.