A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
1 answer:
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Answer:
For Silver , The heat absorbed = <u>246.75 J</u>
For Copper , The heat is =<u> 343.42 J</u>
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Explanation:
The change in temperature is calculated by:
T2 = 25 C
T1 = 15 C
The energy in Joules can be calculated using :
here , m = mass of the substance
c = the heat capacity
q = heat absorbed / released
We need to calculate the mass , In order to determine the value of "q".
<u>Calculation for Silver :</u>
<u><em>The mass is calculated from the density of the element.</em></u>
density of Silver = 10.5 g/ml (look at the table of density)
Volume of Cube = 10 cm^3 (given)
1 cm^3 = 1 mL
10 cm^3 = 10 mL
The mass can be calculated using the formula:
Insert the value of m , c, T in the equation.
for Silver the value of "c"= 0.235 J/gC (Look at the table)
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<u>Calculation for Copper:</u>
Again first calculate the mass of Copper.
Density of Copper = 8.92 g/ml
Volume = 10 mL
Insert the value of m , c, T in the equation.
for Silver the value of "c"= 0.385 J/gC (Look at the table)
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