A 25.0 ml volume of hcl solution with an unknown concentration is titrated with a 0.208 m naoh solution. neutralization of the hcl solution requires 26.6 ml of the naoh solution. calculate the concentration of the hcl solution
<u>Answer:</u> The temperature increase will be 31.70°C.
<u>Explanation:</u>
To calculate the increase in the temperature of the system, we use the equation:
where,
q = Heat absorbed = 36.5 kJ = 36500J
m = Mass of water = 275 g
c = Specific heat capacity of water = 
= change in temperature = ? °C
Putting values in above equation, we get:
Hence, the temperature increase will be 31.70°C.
Answer:
See the attachment for the filled in chart.
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Answer:
The reaction between 3-nitrophthalic acid and hydrazine is highly vigorous. Therefore, the answer is <em>option C</em>.
Explanation:
Triethylene glycol is a high-boiling solvent which necessarily used to contain the synthesis of luminol, which is obtained from the reaction between 3-nitrophthalic acid and aqueous hydrazine. However, this reaction is carried out at a very high temperature, the prior addition of triethylene glycol can allow sufficient reflux for the required completion time without evaporating the solvent fully.
Furthermore, Luminol is an organic compound used to detect metallic ions in Biology. For example, it is used to detect blood traces in forensic investigations.
Answer:
C₆H₈O₇ = 192 g/mol
Explanation:
Molar mass is the sum of the atomic weight of the atoms present in compound.
Formula of citric acid:
C₆H₈O₇
Atomic weight of hydrogen = 1 amu
Atomic weight of carbon = 12 amu
Atomic weight of oxygen = 16 amu
C₆ = 6 × 12 = 72 g/mol
H₈ = 8 × 1 = 8 g/mol
O₇ = 7 × 16 = 112 g/mol
C₆H₈O₇ = 72 g/mol + 8 g/mol + 112 g/mol
C₆H₈O₇ = 192 g/mol
