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3 years ago

PLEASE HELP!!!! 24 POINTS

Chemistry

2 answers:

Ostrovityanka [42]3 years ago

8 0

The answer is ( a mechanical implant that delivers medicine ).

Leno4ka [110]3 years ago

4 0

A petroleum-based lubricant used to in farming machinery.
hope i helped very well

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3 years ago

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 8.10kg of water at 33.9 degree

lions [1.4K]

Answer:

The new temperature of the water bath 32.0°C.

Explanation:

Mass of water in water bath ,m= 8.10 kg = 8100 g ( 1kg = 1000g)

Initial temperature of the water = $T_1=33.9^oC=33.9+273K=306.9 K$

Final temperature of the water = $T_2$

Specific heat capacity of water under these conditions = c = 4.18 J/gK

Amount of energy lost by water = -Q = -69.0 kJ = -69.0 × 1000 J

( 1kJ=1000 J)

$Q=m\times c\times \Delta T=m\times c\times (T_2-T_1)$

$-69.0\times 1000 J=8100 g\times 4.18 J/g K\times (T_2-306.9 K)$

$-69,000.0 J=8100 g\times 4.18 J/g K\times (T_2-306.9 K)$

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The new temperature of the water bath 32.0°C.

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4 years ago

Enter the ionic equation, including phases, for the reaction of AgNO3(aq) with K2SO4(aq).

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The answer is
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