10/17/19

Chemistry: Equilibrium Math Question 6
Determine the equilibrium vapor pressure of germanium metal at 508.0 C. The standard enthalpy of vaporization of germanium is 376.6 kJ/mol and the vapor pressure at 100 C is 1.6E-32 Pa. Be sure to... more
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10/17/19

Chemistry: Equilibrium Math Question 4
At 25 C, the partial pressure of CO2(g) in a bottle of soda water is 1 bar. Calculate the equilibrium concentration of dissolved carbon dioxide under these conditions. The equilibrium constant for... more
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10/17/19

Chemistry: Equilibrium Math Question 3
A2B ↔ 2A + BWith this simple equation, if you start with 0.815 M A2B, and at equilibrium 53% of it has decomposed, what is the equilibrium constant?
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10/17/19

Chemistry: Equilibrium Math Question 2
The equilibrium constant for dissolving oxygen gas in aqueous solution is 1.33E-4. Compute the equilibrium concentration of dissolved oxygen, in mg L-1 when the partial pressure of O2 above the... more
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10/17/19

Chemistry: Equilibrium Math Question
If a closed vessel is charged with 89000.0 Pa of nitric oxide and allowed to react with excess liquid bromine, what is the equilibrium partial pressure of the product?NO(g) + ½ Br2(l) ↔ NOBr(g)... more
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10/17/19

Calculate the pH of a 0.40 M solution of hypochlorous acid, for which Ka value is 2.90 x 10^-8
Calculate the pH of a 0.40 M solution of hypochlorous acid, for which Ka value is 2.90 x 10^-8The answer is: 3.96please explain the steps used, thank you!
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10/17/19

2C8H18+25O2→ 18H2+16CO2+energy
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10/17/19

Write the balanced net ionic equation for the reaction of aqueous sodium sulfide with aqueous lead(II) nitrate.

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10/17/19

A 20.0 mL solution of NaOH is neutralized with 34.3 mL of 0.200 M HBr. What is the concentration of the original NaOH solution?
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10/17/19

What is the chemical formula that results when sodium and selenium combine to form an ionic bond? Explain.

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10/16/19

To what volume would you need to dilute 20.0 mL of a 1.40 M solution of LiCN to make a 0.0105 M solution of LiCN?
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10/16/19

How many moles of AgI will be formed when 75.0 mL of 0.300 M AgNO3 completely reacted according to the balanced chemical reaction:
: 2AgNO₃(aq) + CaI₂(aq) → 2AgI(s) + Ca(NO₃)₂(aq)I know I have to use conversion factors but I'm not sure how to do the problem at all.
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10/16/19

How many mL of 0.300 M NaF would be required to make a 0.0355 M solution of NaF when diluted to 250.0 mL with water?
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10/16/19

What volume (in L) of 1.1 M FeCl₃ would be required to obtain 0.57 moles of Cl⁻ ions?
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10/16/19

Enthalpy of Reaction
Using standard heats of formation, calculate the standard enthalpy change for the following reaction.2HBr(g) + Cl2(g)2HCl(g) + Br2(g)ANSWER:___ kJ
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10/16/19

Enthalpy of Formation
The standard heat of formation for CaCl2(s) is -796 kJ/mol at 298 K. Write the formation equation for CaCl2(s) that goes with this value of ΔH°.Use the pull-down boxes to specify states. Write... more
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10/16/19

Enthalpy of Formation

The standard enthalpy change for the following reaction is 269 kJ at 298 K. 2 CHCl3(l)2 C(s,graphite) + H2(g) + 3 Cl2(g) What is the standard heat of formation of CHCl3(l)?  kJ/mol
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10/16/19

5 increased by 7 times a number equals 19
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10/16/19

What volume of 0.1M NaOH would be needed to titrate 5.0 ml of a triprotic acid?
I was wondering how to solve this problem without knowing the molarity of the triprotic acid. Is this an impossible problem?
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10/16/19

Write the correct electron configuration for S.
Write the correct electron configuration for S.
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10/16/19

What bet ionic equation occurs when aqueous solutions of potassium carbonate and iron(iii) bromide are mixed
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10/16/19

white light passed through a prism comes out as a rainbow. describe white light in terms of a mixture of photons
White light passed through a prism comes out as a rainbow. Describe white light in terms of a mixture of photons.
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10/16/19

Help me solve this

Equality:how many miles of uranium are in 41.34 grams of uranium? Use conversation factor method
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10/16/19

Is it possible to chemically synthesize blood?
Like we know all the chemical compositions of blood and add the ingredients. We even know the compositions of each blood group and synthesize it to be of a particular group, say A - (which is... more
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10/16/19

Write the balanced NET ionic equation for the reaction when HClO₃ and Ba(OH)₂ are mixed in aqueous solution. If no reaction occurs, write only NR.
Write the balanced NET ionic equation for the reaction when HClO₃ and Ba(OH)₂ are mixed in aqueous solution. If no reaction occurs, write only NR.
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