lex asked in Science & MathematicsChemistry · 2 years ago

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QUESTION 1

You mix 50.0 ml of 2.0 M HCl and 50.0 ml of 2.0M NaOH. The temperature of the resulting solution increases from 22.5 degrees celcius to 32.3 degrees celcius. What is the change in temperature of the solution?

a.)9.8 C

b.)-9.8 C

c.)282.8 K

d.)-282.8 K

QUESTION 2

You mix 50.0 ml of 2.0 M HCl and 50.0 ml of 2.0M NaOH. The temperature of the resulting solution increases from 22.5 degrees celcius to 32.3 degrees celcius. What is the change in the heat for the solution?

A.)2050J

B.)-2050J

C.)4100J

D.)-4100J

QUESTION 3

You mix 50.0 ml of 2.0 M HCl and 50.0 ml of 2.0M NaOH. The temperature of the resulting solution increases from 22.5 degrees celcius to 32.3 degrees celcius. What is the q of the calorimeter?

a.)98J

b.)-98J

C.)9800 J

D.)-9800J

1 Answer

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  • david
    Lv 7
    2 years ago

    1. 32.3 - 22.5 = 9.8 C = answer A

    2. Assuming the spec. heat is the same as H2O, 4.184 and that the density of the mix is also that of water, 1.0g/mL

    100g X 4.184 X 9.8 = 4100 J = Answer C

    3. .... ?? I have assumed it is 0j to do the calc. in quest. 2 . but that is not a choice ... so I am lost....

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