What is the molar mass of the metal

Assignment Help Chemistry
Reference no: EM13163458

In this experiment a hot metal block at 100oC is added to cold water in a calorimeter. The heat lost by the metal block equals the heat gained by the water and the two end up at the same temperature.

In one experiment, the mass of the metal block is 121 grams, the volume of water used is 71.7 mL, the temperature of the cold water extrapolated to the time of mixing is 18.5oC, and the temperature of the metal block and water extrapolated back to the time of mixing is 27.2oC.

The specific heat of water is 4.184 J K-1g-1

How much heat is gained by the cold water?

Heat gained by cold water = J

What is the specific heat of the metal?

Specific heat of the metal = J K-1g-1

According to the Law of Dulong and Petit, what is the molar mass of the metal?

Molar mass = g mol-1

Reference no: EM13163458

Questions Cloud

What mass of indium is present : A sample of indium sulfate, In2(SO4)3, contains 0.0446 moles of oxygen. What mass of indium is present?
What was the initial concentration : A zero-order reaction has a constant rate of 2.90×10-4 M/rm s. If after 65.0 seconds the concentration has dropped to 9.00×10-2 M, what was the initial concentration.
A program that keeps track of ticket sales for an auditorium : Design a program that keeps track of ticket sales for an auditorium. A concert will be performed over three days in an auditorium with three levels of seating floor, balcony, and upper balcony. There are 20 seats for each type of seating. Write a pro..
What would be the final pressure : A gas is heated from 268 K to 290 K while its volume is increased from 25.0 L to 37.0 L by moving a large piston within a cylinder. If the original pressure was 0.90 atm, what would be the final pressure?
What is the molar mass of the metal : In this experiment a hot metal block at 100oC is added to cold water in a calorimeter. The heat lost by the metal block equals the heat gained by the water and the two end up at the same temperature.
The irreducible polynomial is the one used : Compute in  GF (28): ( x 4+ x +1) / ( x 7+ x 6+ x 3+ x 2) , where the irreducible polynomial is the one used by AES, P ( x )= x 8+ x 4+ x 3+ x +1.
Draw the diagram for this claw-back provision : Draw the diagram for this claw-back provision and what kind of option is it?
Identify the species oxidized : Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in the following electron transfer reaction.
A program that takes into account a pre given array : Problem: A program that takes into account a pregiven array and prompts the user to enter a return per minute value.

Reviews

Write a Review

Chemistry Questions & Answers

  State the glass electrode used in commercial ph meters

The glass electrode used in commercial pH meters gives an electrical response proportional to the concentration of hydrogen ion. To convert these responses to a pH reading

  What will be the velocity of the escaping electrons

What will be the velocity of the escaping electrons under these conditions? What is the de Broglie wavelength of the escaping electrons?

  How much energy (in kilojoules) is needed

How much energy (in kilojoules) is needed to heat 3.60 of ice from -14.5 to 26.0? The heat of fusion of water is 6.01, and the molar heat capacity is 36.6 for ice and 75.3 for liquid water.

  Estimate the value of the equilibrium constant

Estimate the value of the equilibrium constant at 610K for each of the following reactions. Delta Hf and S for BrCl is 14.6 kj/mol and 240.0 J/mol*K , respectively. Br2(g)+ Cl2(g) --> 2BrCl(g)

  What mass of aluminum

What mass of Aluminum is produced when 0.5 mole of Al2S3 is completely reduced with excess H2?

  Explain the rate constant of a certain reaction

The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy

  How much heat is absorbed

How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below? Change in H degrees for the reaction is +624.6 kJ. SiO2 (g) + 3C (s) -> SiC (s) + 2CO (g)

  How many grams of nitrogen can be produced

Ammonia and oxygen react to form nitrogen and water. How many grams of N2 can be produced when 6.30g O2 reacts?

  What will be molarity

A solution contains 410.3 g of H2SO4 per litre of solution . If the density is 1.243 g/ml, what will be its molarity and molality.

  What is the sketched formula for ethyl methyl ester

Is 1-propanol soluble in hexane? Why or why not? What is the sketched formula for ethyl methyl ester and is it an isomer of butanoic acid? If not, what is the isomer of butanoic acid?

  How much energy would be needed to warm water

If it takes 526 J of energy to warm 7.40 g of water by 17 °C, how much energy would be needed to warm 7.40 g of water by 55 °C?

  How many liters of oxygen are needed

How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd