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

Q: For the reaction   Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3   how many grams of…

A: This question is related to stoichiometry. In this question, it is asked to find out how many grams…

Q: The concentration of chemical solutions can be expressed in several different units of measurement…

A: Given that the 4 mM solution has an absorbance of 1.000 when measured in 1.0 cm cuvette.

Q: Reaction Quenching: Our Fisher Esterification reaction is being quenched using sodium bicarbonate…

A: During the quenching of a reaction, any remaining reactant and catalysts are neutralized or…

Q: If a reaction involving a single reactant is first order with a rate conatsnt of 4.50 x 10^-2 s^-1,…

A: Here we are required to find the time needed for first order reaction to be 53% of initial…

Q: 5. 16.0 g of SO₂ reacts with 16.0 g of O₂ to produce SO3: a. Write the balanced molecular equation:…

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Q: 5.) What volume in mL of a concentrated solution of NaOH (6.0M) must be diluted to 200 mL to make a…

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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: Consider the reaction below.  2.51 mol of A and 6.30 mol of B are added to a 2.0 L container.  At…

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Q: Chemistry A PBS at a 1x concnentration has 137 mM NaCl, 2.7 mM KCl, 8 mM Na2HPO4, and 2 mM KH2PO4.…

A: Since the buffer solution is 1x concentrated it is not diluted.  Hence we have to use the…

Q: 204.094. 2) How many N₂04 molecules are contained in 76.3 g N₂04? The molar mass of N204 is 92.02…

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Q: Draw the major organic product for the reaction. (Include mechanism)

A: This reaction is an oxymercuration and demercuration reaction of an alkyne, in which we have to find…

Q: Question: 1.Which of the following compounds contains a metal ion with 2+ charge? A. Cu2S B. NiCr207…

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Q: When 50.0 mL of 1.00 M hydrochloric acid and 50.0 mL of 1.00 M sodium hydroxide react, the…

A: Given data  50.0 mL of 1.00 M hydrochloric acid 50.0 mL of 1.00 M sodium hydroxide T1= 20.4C T2=…

Q: How many grams of diatomic nitrogen (N2) are needed to produce 2.75 moles of ammonia

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Q: Write a net ionic equation for the reaction that occurs when aqueous solutions of potassium…

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Q: 1) How does the octet rule explain the formation of a chloride ion?       a) What noble gas is…

A: we have to explain why Cl forms chloride ion on the basis of octet rule

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

A: Redox reaction : A redox reaction are those chemical reaction where transfer of electrons are…

Q: Cl(aq) + CrO4²- (aq) → CIO¯ (aq) + CrO₂ (aq)

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Q: Describe and explain the relationships between the variables of the Beer-Lambert law: i) When…

A: The Beer-Lambert's law equation is: A = ε*b*C where A = Absorbance of the solution,  b = Part length…

Q: Using Freundlich Relation. If 100 ml of 0.5 M HA (MM = 60 g) mixed with 0.9 g charcool after…

A: Freundluich equation is an empirical relationship between the quantity of a solute adsorbed onto the…

Q: The gas phase decomposition of nitrosyl chloride at 400 K NOCI(g) → NO(g) + ½ Cl₂(g) is second order…

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Q: Suppose a small sample of pure X is held at -90. °C and 7.7 atm. What will be the state of the…

A: From the given graph,  pressure(in atm)  goes along y-axis and temperature(in K) along x-axis . The…

Q: 4. magnesium + silver acetate → Molecular Reaction: Oxidation half reaction:

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Q: Why is there a need to adjust the acid concentration of Group I cations before saturation with H₂S?

A: The elements in the group 2 include beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr),…

Q: Bromine (Br₂) has a melting point of 266 K and a boiling point of 331 K. Which of the following…

A: Since  melting point is 266K means at 300k compound is in melted (liquid) state. So figure 1, 3 is…

Q: 3. Calculate the amount of energy absorbed when 42 g of water at 21°C heats to 94°C. Did a phase…

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Q: Classify each chemical compound: compound Mn(OH)₂ Se S₂ SnC1₂ type of compound O ionic O ionic O…

A: Here we have to check the type of bonding between them.

Q: Calculate the frequency of the = 6 line in the Lyman series of hydrogen. V= In what region of the…

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Q: Titus titrates 60 mL of 0.700 M lactic acid (HC,H,O,, Ka = 1.5 × 10 NaOH. Calculate the pH of the…

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Q: 16.0 g of KO2 was reacted with CO2 in a 3.00-L tank according to the reaction below. 4 KO2 (s) + 2…

A: Here we have to apply mole concept.

Q: Ag+ (aq) + Mg(s) Mg2+ (aq) + Ag(s)

A: To balance the equation by oxidation number method , we have to calculate their oxidation numbers…

Q: Please Answer Fast: Calculate the initial concentration of F e^ 3+ and SCN^ - , accounting for…

A: We need to calculate the initial concentrations of Fe3+ and SCN- from the given data.

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: 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: What volume of gold is equal in mass to a piece of copper having a volume of 125 cm3? Use Conversion…

A: Given data :-  Given Volume of copper = 125 cm3 Experimental data :-  Density of copper = 8.96 g/cm3…

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

A: Given  Structure find out the Exact Mass

Q: For the following reaction, 3.27 grams of iron(II) chloride are mixed with excess silver nitrate.…

A: The balanced chemical reaction is,  FeCl2(aq) + 2AgNO3(aq) -------> Fe(NO3)2 (aq) + 2AgCl (s)…

Q: At 276.7 oC, the Kp for the reaction 2 A (g) + 1 B (g)  ↔  5 AB is Kp = 3.07⋅10-2 What is Keq?

A: Given - 2A(g)+1B(g) <->5AB.            Kp=3.07×10-2 Keq=? T = 276.7°C = 276.7 + 273 = 549.7 K…

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Q: Consider a situation in which acid rain has heavily polluted a lake to a level of pH 4. An…

A: The value of pH expresses how much concentrated the acid solution is.

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: Use dimensional analysis to compute what volume of titanium (in cm3) would have a mass of 79.3394…

A: To calculate the volume of titanium, we would use its density .

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: cyanic acid (HCNO) hypobromous acid (HBrO) Ka = 2.0 x 10 Ka = 2.8 × 10-⁹ Use the information in the…

A: Answer:- This question is answered by using the simple concept of strength of weak acids which…

Q: Use the References to access important values if needed for this question. The compound zinc nitrate…

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Q: At 292.8 oC, the Kp for the reaction is 4.23⋅10-5:  3A+5B ↔ 1AB What is Keq?

A: From given Keq we can calculate Kp.

Q: Any anion which is the conjugate base of a weak acid is itself basic. O True False

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Q: pes of electromagnetic radiation are listed in the table energy per photon. For example, select "1"…

A: The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their…

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

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Q: A 0.750L aqueous solution contains 90g of ethanol Concentration of the solution in mol/L?

A: Molarity of a solution is defined as number of moles of solute dissolved per litre of the solution.…