02/05/21

How much energy would it take to heat a section of the copper tubing that weighs about 610.0 g , from 14.99 ∘C to 25.85 ∘C ? Copper has a specific heat of 0.3850 J/(g⋅∘C).
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02/05/21

Using the information in the table, the rate law for the reaction A(g) + 3 B(g) → C(g) + 2 D(g) is
Using the information in the table, the rate law for the reaction A(g) + 3 B(g) → C(g) + 2 D(g) isTable[A0] (M) [B0] (M) Rate (M/min)0.300 0.180 ... more
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02/05/21

FeCl₃ has a van't Hoff factor of 3.400. What is the freezing point (in °C) of an aqueous solution made with 0.6100 m FeCl₃? (Kf for water is 1.860 °C/m)
FeCl₃ has a van't Hoff factor of 3.400. What is the freezing point (in °C) of an aqueous solution made with 0.6100 m FeCl₃? (Kf for water is 1.860 °C/m)
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02/05/21

The reaction A + 2 B → C has the rate law rate = k[A][B]. By what factor does the rate of reaction increase when both [A] and [B] are doubled?
The reaction A + 2 B → C has the rate law rate = k[A][B]. By what factor does the rate of reaction increase when both [A] and [B] are doubled?
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02/05/21

What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is 34.0 g and the total mass is 370.0 g.
What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is 34.0 g and the total mass is 370.0 g.
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02/05/21

AlCl₃ has a van't Hoff factor of i = 3.20. What is the concentration of particles in a 0.451 M solution of AlCl₃?
AlCl₃ has a van't Hoff factor of i = 3.20. What is the concentration of particles in a 0.451 M solution of AlCl₃?
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02/05/21

The reaction A+B⟶C+D rate=𝑘[A][B]2 has an initial rate of 0.0720 M/s.
What will the initial rate be if [A] is halved and [B] is tripled?What will the initial rate be if [A] is tripled and [B] is halved?
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02/05/21

A (g) ⇌ B (g) + C (g) (26)
An empty steel vessel is charged with 0.240 atm of C and 0.240 atm of A. Once the system reaches equilibrium according to the reaction below, what is the equilibrium partial pressure of C? Kp for... more
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02/05/21

An evacuated reaction vessel is filled with 3.60 atm of NOCl. When the system reaches equilibrium according to the reaction below, there are 0.160 atm of NOCl. What is Kp for this reaction? (27)
2 NO (g) + Cl₂ (g) ⇌ 2 NOCl (g)
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02/05/21

Construct the expression for Kp for the following reaction. (32)
3 F2 (g) + Cl2 (g) // 2 ClF3 (g)Kp =
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02/05/21

Calculate the density of the magnet and bolt...
Magnet:Mass (g) = 7.93 gInitial volume of graduated cylinder = 7.00 mLFinal volume of graduated cylinder = 9.00 mLObject volume = 2.00 mLDensity (g/mL) ?Bolt:Mass (g) = 6.61 gInitial volume of... more
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02/04/21

54.20 g of Al(NO3)3 in 1500 mL of solution

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02/04/21

Clausius Clapeyron

Estimate the vapor pressure of liquid benzene at 60 °C. Use its normal boiling point Tb = 80 °C and ΔHvap = 30800 J/mol.
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02/04/21

How much energy is required to vaporize 12 grams of water at 100° C?

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02/04/21

Calculate the heat required to melt 25.7 grams of solid water at 0 ºC.

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02/04/21

If + 201,140 Joules of energy was absorbed to vaporize water at 100° C, what was the mass (grams) of the water used?

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02/04/21

When copper metal is added to silver nitrate in solution, silver metal and copper (II) nitrate are produced. What mass of silver is produced from 200.g Cu?
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02/04/21

Acid Base Chemistry (Answer Completely)
Sodium butanoate, C3H7COONa, is the salt of a weak acid, butanoic acid, C3H7COOH.A 0.10 M solution of sodium butanoate has a pH of 8.91.a. Calculate the [OH-] in the sodium butanoate solution... more
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02/04/21

Acid Base Chemistry (Answer Completely)
Formic acid, whose formula is HCOOH, is the active ingredient in ant bite stings. A 0.10 M aqueous solution of formic acid has a pH of 2.38. What is Ka for formic acid?
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02/04/21

Solubility of Compounds
Determine which of the following compounds are insoluble.Check all that apply.___ CaCl2___ Ca(C2H3O2)2___ Cu(OH)2___ PbBr2___ Hg2Br2___ PbI2___ SrSO4
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02/04/21

Solubility of Compounds
Determine which of the following compounds is/are soluble.Check all that apply.___ Na2CO3___ CuI2___ Pb(NO3)2___ CoCO3___ AgCl___ K3PO4___ LiOH
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02/04/21

Solubility of Compounds
According to the solubility rules, you can pair each cation with each anion to form soluble compounds in the following way: Pb2+ ---> NO3- Sr2+ ---> S2- Na+ ---> CO32- CO2+ --->... more
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02/04/21

Sodium chloride was dissolved in water to produce a 1.5M solution. Explain what this concentration tells us about the NaCl solution. How might a chemist use this ratio?
Sodium chloride was dissolved in water to produce a 1.5M solution. Explain what this concentration tells us about the NaCl solution. How might a chemist use this ratio?
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02/04/21

What mass of P4 will completely react with 2.50 L of hydrogen gas, at 0 C and 1.50 atm pressure?
Consider the following reaction:P4(s) + 6H2(g) → 4PH3(g)What mass of P4 will completely react with 2.50 L of hydrogen gas, at 0 C and 1.50 atm pressure?
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02/04/21

Determine the average rate of change of B from 𝑡=0 s to 𝑡=242 s. A⟶2B
Time (s). Concentration of A (M)0. 0.650121. 0.395242. 0.140
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