20. A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its...
Homework Name: 1) How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C? 2) A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 °C to 89.6 °C. What is the specific heat of the substance? 3) A 70.0-g piece of metal at 80.0 °C is placed...
A piece of unknown substance weighs 57.2 g and requires 3210 ) to increase its temperature from 22.6°C to 89.2°C. (a) What is the specific heat (in J/g.°C) of the substance? 493 /9-°C (6) If it is one of the substances found in the table below, what is its likely identity? Specific Heats of Common Substances at 25°C and 1 bar Substance Symbol (state) Specific Heat (1/g.c) gold Au(s) 0.129 copper Cu(s) 0.384 iron Fe(s) 0.449 argon Arg) 0.521 silicon...
QUESTION 7 A 437.2 g sample of an unknown substance requires 8460to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 A 437.2 g sample of an unknown substance requires 8460 ) to increase its temperature from 19.3 °C to 68.9 °C. According to table 5.1 in the text, the sample may be copper lead aluminum iron QUESTION 9 A 30.0 g piece of aluminum (C = 0.897 J/g...
Question 24 A 50,0 g sample of an unknown substance requires 2200.J of heat to increase in temperature by 62.0°C. What is the heat capacity of the block? 1.41 [8°C) 0.710 VISC) 6.82x10 1/8 C) 1770 J/ -°C) O 3380 g) Proctorio is sharing your screen Stop sharing Hide DOLL Principles of Chemistry nciples of Chemistry ak acid : HF H3 PO 4 CH₃ Coolt weak Bas: NH₃ Question 27 A 1.25 mol sample of neon gas has a volume...
1) the kinetic energy of a 15.2 kg object traveling at 8.49 m/s is ___ J. 2) A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 oC to 68.9 oC. The specific heat of the substance is ___ J/g oC. 3) A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 oC to 68.9 oC. According to table 5.1 in the text, the sample may...
It takes 51.0 J to raise the temperature of an 8.80 g piece of unknown metal from 13.0°C to 24.8°C what is the specific heat for the metal?
It takes 51.0 J to raise the temperature of an 8.80 g piece of unknown metal from 13.0°C to 24.8°C what is the specific heat for the metal?
It takes 49.0 J to raise the temperature of an 9.30 g piece of unknown metal from 13.0∘C to 25.0 ∘C. What is the specific heat for the metal?
it takes 55.0 J to raise the temperature of an 11.6 g piece of unknown metal from 13.0 c to 24.0 c. What is the specific heat for the metal?
It takes 49.0 J to raise the temperature of an 8.20 g piece of unknown metal from 13.0∘C to 24.2 ∘C What is the specific heat for the metal? Express your answer with the appropriate units.