Such high amounts of pressure cause this layer to remain in a _____solid_____ state of matter even though the nickel and iron are at such a high temperature.
The specific heat of the metal object with a mass of 22.7g heated to to temperature of 97.0°C and then transferred to an insulated container containing 84.7 g of water at 20.5 ∘C is 0.815J/g°C
How to calculate specific heat?
The specific heat capacity of a metal can be calculated using the calorimetry equation as follows:
Q = mc∆T
Where;
Q = quantity of heat absorbed
m = mass of substance
c = specific heat capacity
∆T = change in temperature
mc∆T (water) = -mc∆T (metal)
84.7 × 4.18 × 3.8 = - (22.7 × c × -72.7)
1345.375 = 1650.29c
c = 0.815J/g°C
Therefore, the specific heat of the metal object with a mass of 22.7g heated to to temperature of 97.0°C and then transferred to an insulated container containing 84.7 g of water at 20.5 ∘C is 0.815J/g°C.
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Answer:
Substances can be classified according to how these atoms are assembled and is known as Classification of Matter: All matter falls into one of three categories: elements, compounds or mixtures. Furthermore, mixtures can be classified as homogeneous or in homogeneous.
<span>The preparation of 40 liters of 0.02 m phosphate buffer, ph 6.9, may be carried out by adding 132g of solid trisodium phosphate to 1290ml of hydrochloric acid (HCl concentration 1 mol/L), then making up to a final liquid volume of 40 liters by adding water.
Method: Weigh out 132 grams of Na3PO4 (s), and add it to 1290 ml 1M HCl (l). Mix, then add water, to a final volume of 40 liters.</span>
Answer:
7.28 mol
Explanation:
First find the Molar mass of Ba in the periodic table
which is 137.3
the unit of molar mass is g/mol
1000gx
7.28 mol