SULIT9 - 30Rance3/2M= 0.5kgSatu objek logam berjisim 500 g pada suhu 90 °C diletakkan di dalam sebuah bikar yang mengandunair berjisim 2 kg pada suhu 30 °C. Suhu akhir air di dalam bikar itu ialah 50 °C.[Muatan haba tentu air4 200 J kg¹ °C]A 500 g metal object at 90 °C is placed in a beaker containing 2 kg of water at 30 °C. The final temperaturethe water in that beaker is 50 °C.[Specific heat capacity of water = 4 200 J kg"¹ °C](i) Hitung haba yang diserap oleh air.Calculate the amount of heat absorbed by the water.(ii) Hitung muatan haba tentu logam itu.Calculate the specific heat capacity of the metal.

A 500 g of metal at 90 °C is placed in a beaker containing 2 Kg of water at 30 °C . The final…

SULIT me 2k M=0.5/ Satu objek logam berjisim 500 g pada suhu 90 °C diletakkan di dalam sebuah bikar yang mengandun air berjisim 2 kg pada suhu 30 °C. Suhu akhir air di dalam bikar itu ialah 50 °C. [Muatan haba tentu air 4 200 J kg¹ °C¹] A 500 g metal object at 90 °C is placed in beaker containing 2 kg of water at 30 °C. The final temperature the water in that beaker is 50 °C. [Specific heat capacity of water = 4200 J kg"¹ °C] (i) Hitung haba yang diserap oleh air. Calculate the amount of heat absorbed by the water. (ii) Hitung muatan haba tentu logam itu. Calculate the specific heat capacity of the metal.

SULIT me 2k M=0.5/ Satu objek logam berjisim 500 g pada suhu 90 °C diletakkan di dalam sebuah bikar yang mengandun air berjisim 2 kg pada suhu 30 °C. Suhu akhir air di dalam bikar itu ialah 50 °C. [Muatan haba tentu air 4 200 J kg¹ °C¹] A 500 g metal object at 90 °C is placed in beaker containing 2 kg of water at 30 °C. The final temperature the water in that beaker is 50 °C. [Specific heat capacity of water = 4200 J kg"¹ °C] (i) Hitung haba yang diserap oleh air. Calculate the amount of heat absorbed by the water. (ii) Hitung muatan haba tentu logam itu. Calculate the specific heat capacity of the metal.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

+2 -3 a. solid calcium nitride plus heat Ca Na 3 Ca +2N b. solid lead (IV) carbonate plus heat рысозда 1→→ Pb 0₂ + 2003 c. solid chromium (III) sulfate hexahydrate plus heat d. sodium metal plus nitrogen gas
2.948 g of NH4Cl (53.19 g/mol) are added to 50.0 mL of water (18.02 g/mol, density = 1.00 g/mL) and the temperature changes from 22.30oC to 18.90oC. Use this information to calculate the enthalpy change (kJ/mol) for the reaction illustrated in equation 6 of the laboratory procedure. Use 4.18 J/(goC) as the specific heat of the solution.
A geochemist in the field takes a 47.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X. He notes the temperature of the pool, 17.° C, and caps the sample carefully.. Back in the lab, the geochemist filters the sample and then evaporates all the water under vacuum. Crystals of X are left behind. The researcher washes, dries and weighs the crystals. They weigh 8.93 g. |yes Using only the information above, can you calculate olo the solubility of X in water at 17.° C? no Ar If you said yes, calculate it. Be sure your answer has a unit symbol and the right number of significant digits.
The British thermal unit (Btu) is commonly used in engineering applications. A Btu is defined as the amount of heat required to raise the temperature of 1 lb of water by 1 °F. There are ________ Btu in one Joule. 1 lb = 453.59 g; °C = (5/9)(°F - 32°); specific heat of H2O (l) = 4.184 J/g-K.
2.887 g of NH4Cl (53.19 g/mol) are added to 50.0 mL of water (18.02 g/mol, density = 1.00 g/mL) and the temperature changes from 22.30oC to 18.90oC. Use this information to calculate the enthalpy change (kJ/mol) for the reaction illustrated in equation 6 of the laboratory procedure. Use 4.18 J/(goC) as the specific heat of the solution. (6) NH4Cl(s) → NH4Cl(aq) ∆H6 (measured) Your answer should have 3 sig figs
What is the change in heat (in kJ to one decimal place) when 1.75 L of H2O condenses under 1 atm pressure at 100 °C? ΔHvap = 40.7 kJ mol–1 d(H2O) = 0.958 g mL–1 (at 100 °C)
-1 -1 A 30.0 g sample of polyisoprene, which has a specific heat capacity of 1.880 J.g¹ºC, is dropped into an insulated container containing 250.0 g of water at 30.0 °C and a constant pressure of 1 atm. The initial temperature of the polyisoprene is 87.8 °C. Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has 3 significant digits. [°C G
The same student wanted to determine the heat of dissolution for potassium chlorate (KCIO3, MW: 122.55 g/mol) in water. He measured 10 grams of KCIO3 and dissolved it in a calorimeter containing 250 g of water. The temperature drop was 3.5 K.
when Nitrogen dioxide is created at STP 2 Consider these recations #₂ (g) + (\₂ (g) → 2HCl(s) AH = -184.6 KJ 20F (9) 0₂ (g) + 2 F₂ (g) DH=-49.4 kJ N₂ (g) + 20₂ (g) -> 2N0₂ (5) DH=-66.4 KJ use reaction 4 Determine the mass in groms, of clonine gus casumed (with excess H₂) when 1,223. OKJ of energy is released from the system.
3H2SO4 (aq) + 2Al(s). ----> Al2(SO4)3 (aq) + 3H2 (g) DeltaH = - 1055kJ a. What is the enthalpy change when 35.3 mL of 0.430 M sulfuric acid reacts with 0.436 g aluminum? b. Calculate the standard enthalpy of formation for Al2(SO4)3 (aq)
50.0 mL of 1.00 M HCl is mixed with 50.0 mL of 0.95 M KOH in a calorimeter with a caloriemeter constant (K cal ) of 17.3 J/^ C . A change in temperature was observed from 26.0C to 32.6^ ( C. What is the heat of reaction per mole of KOH? (Assume a solution density of 1.00g / (mL) and specific heat capacity of 4.18 J/g^ C .)
Determine the amount of heat (in kJ) associated with the production of 3.20×104 g of ammonia according to the following equation. N2(g) + 3H2(g) 2NH3 ΔH°rxn = −92.6 kJ Assume that the reaction takes place under standard-state conditions at 25°C. Enter your answer in scientific notation. ______ x 10____ kJ