An known mass of liquid water at 25.0 °C is mixed with 65.0 g of water...
An known mass of liquid water at 25.0 °C is mixed with 65.0 g of water at 95.0 °C. The final temperature of the combined water is 49.6 °C. What was the mass of the cooler sample of water? What equation is used for this question.
Homework Answers
After mixing the cooler sample of water will warm up (heat energy "flows" into it)
The warmer water will cool down (heat energy "flows" out of it).
The whole mixture will became at the same temperature.
Energy flow out = Energy flow in
qlost=qgain=m xdelta t xcp
65g x (95-49.6) x4.184 = m x( 49.6-25 ) x4.184
65 x 45.4 / 24.6 =m
m= 119.9 g
Add Answer to:
An known mass of liquid water at 25.0 °C is mixed with 65.0 g of
water...
A 43.71−g sample of water at 72.2°C is added to a sample of water at 25.0°C...
A 43.71−g sample of water at 72.2°C is added to a sample of water at 25.0°C in a constant-pressure calorimeter. If the final temperature of the combined water is 40.7°C and the heat capacity of the calorimeter is 26.3 J/°C, calculate the mass of the water originally in the calorimeter. m = in grams
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0'C. The specif...
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0'C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....
10. A 140.0-g sample of water at 25.0°C is mixed with 100.0 g of a certain...
10. A 140.0-g sample of water at 25.0°C is mixed with 100.0 g of a certain metal at 100.0°C. After thermal equilibrium is established, the (final) temperature of the mixture is 29.6°C. What is the heat capacity of the metal, assuming it is constant over the temperature range concerned? (A) 0.38 l/8°C (B) 0.76 l/8°C (C) 0.96 l/8°C (D) 0.031 J/gºC (E) none of these (E) C6H1206(S) + b U218) BC02 UTO 12. The combustion of butane produces heat according...
#6 When 108 g of water at a temperature of 21.1 °C is mixed with 65.7...
#6 When 108 g of water at a temperature of 21.1 °C is mixed with 65.7 g of water at an unknown temperature, the final temperature of the resulting mixture is 47.6 °C. What was the initial temperature of the second sample of water? (The specific heat capacity of liquid water is 4.184 J/g ⋅ K.) Initial temperature = °C
If 25.0 g H2O at 85.0°C is mixed in a coffee-cup calorimeter with 15.0 g H2O...
If 25.0 g H2O at 85.0°C is mixed in a coffee-cup calorimeter with 15.0 g H2O at 20.0°C, what is the final temperature of the mixture? The specific heat of water is 4.18 J/g·°C.
Mass of Styrofoam cups 4.00 g Mass of Styrofoam cups with water 102.30 g Mass of...
Mass of Styrofoam cups
4.00 g
Mass of Styrofoam cups with water
102.30 g
Mass of Water
98.3
Initial Temperature of water
22.0 oC
Final Temperature
11.4 oC
Mass of Styrofoam cups with water plus ice
113.60 g
Mass of Iced Added
11.3 g
1. Ice at -10 °C is heated until it becomes liquid water at 10°C. Which heating curve below represents this process? 10| و (2) T T ( °C او ( T (°C) 0 -10 سے ان کا -10...
If you have 0.401 m of water at 25.0°C and add 0.107 mof water at 95.0°C,...
If you have 0.401 m of water at 25.0°C and add 0.107 mof water at 95.0°C, what is the final temperature of the mixture? Use 1000 kg/m as the density of water at any temperature. final temperature:
39. What is the total number of joules absorbed by 65.0 g of water when the...
39. What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0°C to 40.0°C?
If you have 0.316 m3 of water at 25.0°C and add 0.122 m3 of water at...
If you have 0.316 m3 of water at 25.0°C and add 0.122 m3 of water at 95.0°C, what is the final temperature of the mixture? Use 1000 kg/m3 as the density of water at any temperature.
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0'C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....
10. A 140.0-g sample of water at 25.0°C is mixed with 100.0 g of a certain metal at 100.0°C. After thermal equilibrium is established, the (final) temperature of the mixture is 29.6°C. What is the heat capacity of the metal, assuming it is constant over the temperature range concerned? (A) 0.38 l/8°C (B) 0.76 l/8°C (C) 0.96 l/8°C (D) 0.031 J/gºC (E) none of these (E) C6H1206(S) + b U218) BC02 UTO 12. The combustion of butane produces heat according...
Mass of Styrofoam cups
4.00 g
Mass of Styrofoam cups with water
102.30 g
Mass of Water
98.3
Initial Temperature of water
22.0 oC
Final Temperature
11.4 oC
Mass of Styrofoam cups with water plus ice
113.60 g
Mass of Iced Added
11.3 g
1. Ice at -10 °C is heated until it becomes liquid water at 10°C. Which heating curve below represents this process? 10| و (2) T T ( °C او ( T (°C) 0 -10 سے ان کا -10...
If you have 0.401 m of water at 25.0°C and add 0.107 mof water at 95.0°C, what is the final temperature of the mixture? Use 1000 kg/m as the density of water at any temperature. final temperature:
39. What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0°C to 40.0°C?
Most questions answered within 3 hours.
-
find the critical value associated with a right sided hypothesis of
the mean using a sample...
asked 1 hour ago -
Which of the following statements is true with respect to a
simple linear regression model?
a....
asked 2 hours ago -
The energy required to remove an electron from a surface of a
solid element is called...
asked 3 hours ago -
How would you train your employees to avoid risks of using
mobile devices?
asked 3 hours ago -
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 4 hours ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 5 hours ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 6 hours ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 7 hours ago -
A battery has an emf of 9.20V and an internal resistance of 1.20
ohm. a)What resistance...
asked 7 hours ago -
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 8 hours ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 10 hours ago -
Please answer what the maximum and minimum force is, and the
angle on the ion is...
asked 10 hours ago