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lana66690 [7]
3 years ago
8

A 100.0 mL sample of 0.200 M HCl is mixed with a 100.0 mL sample of 0.205 M NaOH in a coffee cup calorimeter. If both solutions

were initially at 25.0 C and the temperature of the resulting solution was recorded as 27.0 C, determine the delta Hrxn (in kJ/mol). Assume no heat is lost to the calorimeter. Hint: What is the limiting reagent?
Chemistry
1 answer:
Bas_tet [7]3 years ago
8 0
I just need more points that's why I'm doing this
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Condensed structural formula of benzoic acid
Deffense [45]
Hmmm I’m not sure just to to quizlet for now but that seems kinda like science and elements
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2 years ago
Calculate the density of a substance with a mass of 0.0500g and volume of 6.40mL, round to the correct number of significant num
lozanna [386]
Density=mass/volume
Mass = 0.0500g
Volume = 6.40mL

0.0500g/6.40mL = 0.0078g/mL
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2 years ago
2 grams of a substance was dissolved in 75.0 g of water resulting in a temperature decrease from 23.1 ⁰C to 18.7 ⁰C. The specifi
RUDIKE [14]
<h3>Answer:</h3>

1379.4 Joules

<h3>Explanation:</h3>
  • The quantity of heat is calculated multiplying the mass of a substance by heat capacity and the change in temperature.

Therefore;

Quantity of heat = Mass × specific heat capacity × Change in temperature

Q = mcΔT

In this case;

The substance dissolved in water gained heat while water lost heat energy.

Thus, Heat gained by the substance = heat lost by water

Heat associated with the water  

Mass of water = 75 g

Change in temperature = 4.4°C

Specific heat capacity =  4.18 J/g·⁰C

Heat = mcΔT

        = 75 g × 4.18 J/g·⁰C × 4.4 °C

        =1379.4 Joules

5 0
2 years ago
Convert 565,900 seconds into days
Andreas93 [3]

There are 60 seconds in one minute

565900 / 60 = 9431.667 minutes in 565,900 seconds

There are 60 minutes in an hour

9431.667 minutes / 60 = 157.9144 hours in 565900 seconds

There are 24 hours in 1 day

157.9144 hours / 24 hours = 6.5498 days.

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3 years ago
What is work?
cluponka [151]

Answer:

A:force times an object displacement

Explanation:

5 0
3 years ago
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