02/19/21

Integrated Rate Law
The decomposition of nitrous oxide at 565 °CN2O(g)N2(g) + ½ O2(g)is second order in N2O with a rate constant of 1.10×10-3 M-1 s-1.If the initial concentration of N2O is 1.67 M, the concentration... more
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02/19/21

100.0 mL of 3.0 M HCl can be neutralized with exactly 200.0 mL of 1.5 M NaOH. If this reaction is done in a coffee cup calorimeter, what temperature change would you expect to observe?
100.0 mL of 3.0 M HCl can be neutralized with exactly 200.0 mL of 1.5 M NaOH. If this reaction is done in a coffee cup calorimeter, what temperature change would you expect to observe?
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02/19/21

Design a Solution
Professional car detailers use a 50% (v/v) solution of isopropyl rubbing alcohol to remove old wax from the car surface. Design a procedure to make a 50% (v/v) solution from store bought rubbing... more
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02/19/21

Chemistry Limited Reactant

how many moles of chlorine gas can be produced if 2 moles of FeCl3, react with 2 moles of O2?
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02/19/21

What is the concentration of Cu^{2+} in the resulting solution?
23.6 mL of 0.141 M copper(II) sulfate reacts with 15.9 mL of 0.114 M sodium hydroxide to form a precipitate (Cu(OH)). What is the concentration of Cu in the resulting solution?Thank you!
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02/19/21

Calculate the vapor pressure of the resulting ethylene glycol solution.
107.1 g of non-volatile ethylene glycol (62.07 g mol ) is added to 336 g of water at room temperature. The vapor pressure of water at room temperature is 23.76 Torr. Calculate the vapor pressure of... more
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02/18/21

Chemistry-Density and Dimensional Analysis
1.How much space would a 2.34 g sample of a substance occupy, if it has a density of 0.993 g/cm3?Round answer to 2 decimal places.2.How many m3 are in 45.7 acres? (1 hectare = 1.0 X 104 m3; 1... more
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02/18/21

What is the half-life for a particular reaction if the rate law is rate = (1281 M*min⁻¹)[A]⁰ and the initial concentration of A is 0.250 M?
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02/18/21

Integrated rate law
The following initial rate data are for the reaction of tertiary butyl bromide with hydroxide ion at 55 oC:(CH3)3CBr + OH-  (CH3)3COH + Br- Experiment [(CH3)3CBr]o, M [OH-]o, M Initial Rate,... more
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02/18/21

Integrated rate law
The following initial rate data are for the oxidation of arsenate ion by cerium(IV) ion in aqueous solution:AsO33- + 2 Ce4+ + H2OAsO43- + 2 Ce3+ + 2 H+ Experiment [AsO33-]o, M [Ce4+]o,... more
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02/18/21

I need help with this question, i dont know the solution to this
how many fewer grams of Li2CO3 will dissolve in 225 of water at 60°C than at 20°CThe Solubility of Selected Solids (grams of solute/100 g of water)Li2CO3 - 1.33 (20°C) , 1.01 (60°C)
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02/18/21

Complete and balance the following neutralization reaction, name the products, and write the net ionic equation.
Complete and balance the reactionAl(OH)3(s) + HCl(aq) —>___________________________Water is one of the products formed. Write the name (not the chemical formula) for the other product.
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02/18/21

According to the label on a bottle of concentrated hydrochloric acid, the contents are 36.0% HCl by mass and have a density of 1.18 g/mL.

What volume of it would you need to prepare 927 mL of 2.40 M HCl?
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02/18/21

Fe(II) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(II) to insoluble Fe(III):
4Fe(OH)+(aq) + 4OH-(aq) + O2(g) + 2H2O (l) —> 4Fe(OH)3 How many grams of O2 are consumed to precipitate all of the iron in 75.0 mL of 0.0350 M Fe(II)?
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02/18/21

Rust (Fe2O3) forms on abandoned cars such as the one in this photo through a series of reactions between iron in the car and oxygen in the atmosphere.
The unbalanced chemical equation for this reaction isFe(s) + O2(g) –> Fe2O3(s)How many electrons are transferred in this oxidation–reduction reaction?________ electrons
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02/18/21

Chemistry question
What is the formula for magnesium hydrogen sulfate?
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02/18/21

A solution is made initially with 0.200 M HIO₃ (Kc = 0.170). Once the equilibrium below is established, what is the equilibrium concentration of H⁺ ions? HIO₃ (aq) ⇌ H+ (aq) + IO₃⁻ (aq)
A solution is made initially with 0.200 M HIO₃ (Kc = 0.170). Once the equilibrium below is established, what is the equilibrium concentration of H⁺ ions? HIO₃ (aq) ⇌ H+ (aq) + IO₃⁻ (aq)
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02/18/21

chemistry question
The boiling point of an aqueous solution is 101.33 ∘C.  What is the freezing point? 
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02/18/21

chem homework question
At , -12.5 ∘C, a common temperature for household freezers, what is the maximum mass of sucrose (C12H22O11) you can add to 1.50 kg of pure water and still have the solution freeze? Assume that... more
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02/18/21

Chemistry: Limiting Reactants
1.20 grams of sodium carbonate reacts with 1.9 grams of calcium chloride dihydrate to form sodium chloride and calcium carbonate in a double replacement type reaction.1) calculate with reactant is... more
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02/18/21

chemistry question
Calculate the boiling point of a 8.50 m aqueous solution of propylene glycol. 
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02/17/21

What volume of 0.150 M HCl is required for the complete neutralization of 2.00 g of Na2CO3 (sodium carbonate)?
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02/17/21

Predict and balance the reaction below.
Combustion of Propane. (C3H8)
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02/17/21

Read the description

A solution prepared by dissolving 360.0 mg of a sugar (a molecular compound and a nonelectrolyte) in 1.00 g of water froze at -3.72°C. What is the molar mass of this sugar? The value of Kf is... more
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02/17/21

Read the description

Sodium chloride has a van’t Hoff factor of 2.00. What is the osmotic pressure of a 2.60 M NaCl solution at 25.00°C?
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