why are magnesium metal rods placed in hot water heaters?
Magnesium metal rods placed in hot water heaters to protect our water heater from rusting
Your company manufactures hot water heaters. The life span of
your products are known to be normally distributed with a mean of
13 years and a standard of 1.5 years.... (4 questions in
total)
D Question 11 0.4 pts Your company manufactures hot water heaters. The life spans of your product are known to be normally distributed with a mean of 13 years and a standard deviation of 1.5 years. What is the probability that a randomly selected hot water...
A 33.3 g hot piece of metal at 450K is placed in pure water that has a volume of 155.0 mL which has an initial temperature of 5.3°C. After five minutes, equilibrium is established. What is the final temperature of the water in Celsius if the metal has a specific heat 0.33 J/g°C
If a hot metal were placed in a calorimeter filled with cooler water, ideally, what would the net heat exchange be? qmetal + qwater = ?
1. A 33.3 g hot piece of metal at 450K is placed in pure water that has a volume of 155.0 mL which has an initial temperature of 5.3°C. After five minutes, equilibrium is established. What is the final temperature of the water in Celsius if the metal has a specific heat 0.33/ 2. a) What is the maximum amount of salt (in molecules) that can be produced when 35 mL of 0.102 M of strontium hydroxide reacts with 12...
A 41.0 g block of an unknown metal is heated in a hot water bath
to 100.0°C. When the block is placed in an insulated vessel
containing 130.0 g of water at 25.0°C, the final temperature is
28.0°C. Determine the specific heat of the unknown metal. The
cs for water is 4.18 J/g°C.
____ J/g°C
A 16.260g piece of metal was heated in a hot water bath at . The hot metal was then transferred to a calorimeter containing 50.00 mL of water (d of H2O= 1.00 g/mL). From the time-temperature plot, the initial and final temperature for the water were determined to be and , respectively. A) calculate heat (q) gained by the calorimeter and water assuming Ccal= , qH2O= (4.184 J/gC)(mwater)() and qcal=Ccal. 95.5°C 23.76°C 26.18°C 21.0J/ C T We were unable to...
. A 150.0 g sample of a Metal was heated to 95.0°C. When the hot metal was placed into 100.0 g of water in a calorimeter, the temperature of the water increased from 20.0°C to 35.0°C. The specific heat of water is 4.184 J/g °C. a) What is the specific heat of the metal? Kb) What would the final temperature be if the mass of water was 150.0 q?
A metal rod, when placed in a very hot oven, is observed to expand by about 0.1%. By approximately what fraction does the surface area of a sheet made of the same metal increase when placed in the same oven?
When a piece of magnesium metal is placed in a solution of nickel (II) nitrate, metallic nickel can be seen forming on the surface of the magnesium. 1. Write a balanced chemical equation for this redox reaction. A. Molecular equation B. Complete ionic equation C. Net ionic equation 2. Assign oxidation numbers for each element in the net ionic equation
structure.com/courses/1253444/quizzes/2442703/take Calculate the amount of heat water absorbs from a piece of hot metal using the following data: 75.0 g of cold water is placed in a calorimeter. The initial temperature of the water is 21.2°C. To the calorimeter a 29.458 g piece of metal at 98.9 °C is added. The final temperature of the contents of the calorimeter is measured to be 29.5°C. (HINT: the specific heat of water is 4.184 ) heat absorbed by water = Knowing the...