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Bezzdna [24]
3 years ago
14

Starting with a vessel of temperature 50.1°C, a pressure of 6263.MmHg and volume 461.1mL, what is its final volume, in liters, i

f you cool it to -95.8°C with a final pressure of 411.Atm?
Chemistry
1 answer:
il63 [147K]3 years ago
8 0

Answer:

The value of final volume inside the vessel  V_{2} =  5.17 ml

Explanation:

Initial pressure P_{1} = 6263 mm Hg = 8.24 atm = 835 K pa

Initial temperature T_{1} = 50.1 ° c = 323.1 K

Initial volume V_{1} = 461.1 ml =  0.0004611 m^{3}

Final temperature T_{2} = - 95.8 ° c = 177.2 K

Finial pressure P_{2} = 411 atm = 41644.6 K PA

We know that

P_{1} \frac{V_{1} }{T_{1} }  = P_{2} \frac{V_{2} }{T_{2} }

Put all the values in the above equation

⇒ 835 × \frac{0.0004611}{323.1} = 41644.6 × \frac{V_{2} }{177.2}

⇒ V_{2} = 5.07 × 10^{-6} m^{3}

⇒ V_{2} =  5.17 ml

This is the value of final volume inside the vessel.

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Find w12, the work done on the gas as it expands from state 1 to state 2.
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How many grams of lead (ll) chloride are produced from the reaction of 25g of sodium chloride according to the balanced reaction
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The answer to your question is:  25 g of PbCl2

Explanation:

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7 0
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Read 2 more answers
A. Calculations for the Determination of Ammonium Chloride The data from the data entry portion of the report has been copied in
Vladimir79 [104]

Answer:

A

Explanation:

Considering question A

Mass of  original sample is m_o = 0.945 \ g

Mass of   NH4Cl is  m_n = 0.116 \ g

Percent of  NH4Cl is k   =  12.275 \%

B

Mass of  NaCl  m_k  =  0.359 \ g

C

Mass  of  SiO2   m_e = 0.46

D

 Mass of original sample m_o = 0.945 \ g

  Differences in these weights (g) (use the absolute value of the difference)

recovery of matter   G  =   0.01 \ g

The  correct option is C

From the question we are told that

The mass of evaporating dish on #1 is  m_1 =  38.646 \ g

 The mass of evaporating dish and original sample   m_2 =  39 591 \ g

  The mass of evaporating dish after subliming NH_4Cl is m_3 =  39.4750 \  g

Generally the mass of the original sample is  mathematically represented as

        m_o =  m_2 - m_1

=>     m_o =  39 591 -  38.646

=>     m_o = 0.945 \ g

Generally the mass of NH_4Cl is mathematically represented as

        m_n = m_2 - m_3

=>      m_n = 39 591 - 39.4750

=>      m_n = 0.116 \ g

The  Percent  NaH_4 Cl (g)

        k   =  \frac{ m_n}{m_o} *100

=>     k   =  \frac{0.116 }{0.945} *100

=>      k   =  12.275 \%

Considering question B

The  mass of evaporating dish #2 is  m_g  =  38700\  g

The  mass of  watch glass is   m_a  =  28 299 \  g

The mass of evaporating dish #2, watch glass and NaCl  m_b  =  67,355 \  g

Generally the mass of NaCl is  

       m_k  =  m_b -[m_g + m_a]

=>     m_k  =  67,355  -[38700 + 28 299]

=>      m_k  =  0.359 \ g

Considering question C

 The mass of evaporating dish is   m_p= 38.645

 The mass of evaporating dish and SiO2     m_s  = 39.105 \ g

Generally  the mass of  SiO2  is  mathematically represented as

        m_e = 39.105 - 38.645

=>      m_e = 0.46

Considering  D

The  mass of the original  sample  is  m_o  =  0.945 \  g

Generally the experimental  mass recovered (NH_4Cl,NaCl, SiO2 ) is mathematically evaluated as

     M =0.116 + 0.46 + 0.359

    M  =  0.935 \ g

Generally the differences in these weights (g) of recovery of matter is mathematically represented as.

     G  =0.945- 0.935

=>   G  =   0.01 \ g

While drying the NaCl, the liquid boiled and some splattered out of the evaporating dish, causing the recovered mass to be lower.

     

6 0
3 years ago
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