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VARVARA [1.3K]
2 years ago
15

Suppose you carry out a titration involving 2.50 molar NaOH and an unknown concentration of HBr. To bring the reaction to its en

d point, you add 49.2 milliliters of NaOH to 35.0 milliliters of HBr.
What is the concentration of the HBr solution?

A. 0.711 M
B. 1.41 M
C. 1.78 M
D. 3.51 M
Chemistry
1 answer:
givi [52]2 years ago
7 0

Answer:

B

Explanation:

Brainly Patrol ima stop you here

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Whats the molar mass of tetraphosphorus decoxide
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3 years ago
A mixture of helium, nitrogen and oxygen has a total pressure of 821 mmHg. The partial pressure of helium is 105 mmHg, and the p
skad [1K]

Answer:

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Partial pressure of Helium, P1 = 105 mm Hg

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4 0
2 years ago
The normal boiling point of iodomethane, CH3I, is 42.43 8C, and its vapor pressure at 0.00 8C is 140. Torr. Calculate (a) the st
tigry1 [53]

Answer:

a=28600J; b=90.6 J/K; c=402 torr

Explanation:

(a) considering the data given

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Using the Clausius-Clapeyron Equation

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In 760/140 = ΔH/8.314 J/mol/K  × (1/315.58K -- 1/273.15K)

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(b) using the Equation ΔG°=ΔH° - TΔS to solve forΔS.

Since ΔG at boiling point is zero,

ΔS =(ΔH°vap/Τb)

 ΔS = 28600 J/315.58 K

= 90.6 J/K

(c) using ln (P2/P1) = (ΔH/R)(1/T2 - 1/T1)

ln P298 K/1 atm =  28600 J/8.314 J/mol/K × (1/298.15K - 1/315.58K)

P298 K = 0.529 atm

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8 0
3 years ago
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