Given:
m = 12 g
C = 2.51 J/g.K = 2.51 J/g.oC
Ti = 26 oC
Tf = 78 oC
use:
Q = m*C*(Tf-Ti)
Q = 12*2.51*(78-26)
Q = 1.6*10^3 J
Answer: 1.6*10^3 J
Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary...
If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 83 g of methanol from 15 oC to 78 oC ?
Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 55 g of methanol from 1 °C to 92 °C?
Lab 9 q If the specijfic heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 86 g of methanol from 27 oC to 64 oC ? (------------) J
a) If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 87 g of methanol from 4 oC to 99 oC ? b When a 3.78 g sample of solid sodium hydroxide was dissolved in a calorimeter in 150.0 g of water, the temperature rose from 14.5 oC to 45.2 oC . Calculate ΔH (in kJ/mol NaOH) for the following solution process: NaOH(s)→Na+(aq)+OH−(aq) Assume that it’s a perfect calorimeter and that the specific heat of...
Part A Calculate the final temperature when 35 mL of water at 50 °C are added to 75 mL of water at 45 °C. Assume density of water is 1.00 g/mL and no heat is lost to the calorimeter. IVO AQ o 2 ? Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 12 g of methanol from 26°C to 78°C ? IVO AO + O 2 ?...
please help me with #9 and 10 before 9:30 9. If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 50 g of methanol from 20 °C to 60 °C? 10. When a 3.25 g sample of solid sodium hydroxide was dissolved in a calorimeter in 100.0 g of water, the temperature rose from 23.9 °C to 32.0 °C. Calculate AH (in kJ/mol NaOH) for the following solution process: NaOH(s) —...
The specific heat of aluminum is 0.900 j/g* C, how many joules of energy required to raise the temperature of 20.0 g of Al from 10.0°C to 15.0°C ? 79 J 90.0 J 100.0 J 112 J
The specific heat capacity of solid copper metal is 0.385 J/gK. How many joules of heat are needed to raise the temperature of a 2.12-kg block of copper from 25.0°C to 88.0°C?
Using the heat of fusion for water 334 J/g the heat of vaporization for water 2260 J / g and fhe specific heat of water 4.184 J/g C calculate the total amount of heat for each of the following Using the heat of fusion for water, 334 J/g. the heat of vaporication for water 2260 J/6, and the specific heat of water, 4 184J/g °C, calculate the total amount of heat for each of the following Part A joules released...
The specific heat of aluminum is 0.900 J/g*C. How many joules of heat are absorbed by 15.0 grams of AI if it is heated from 20.0 C to 60.0 C. Please show how to work out.