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olganol [36]
4 years ago
10

Why does boiling water in a large pot on a stove have a temperature of 100°C even if it has been boiling for an hour? The temper

ature of a liquid is always the temperature of the gas above it. The temperature of a liquid is always 100°C. The temperature of a substance does not change during a phase change.
Chemistry
2 answers:
lianna [129]4 years ago
7 0

Its because the highest possible temperature of water is 100° C .

tresset_1 [31]4 years ago
3 0

Answer: Option (c) is the correct answer.

Explanation:

Latent heat of vaporization is defined as amount of heat necessary for a unit mass of a liquid to change into vapor state without any change in its temperature.

So, when we boil water in a large pot at 100 degree celsius then its temperature will remain the same unless and until all the bonds between water molecules are broken down.

Temperature of water in this situation will start to change the moment vapors start to form.

Thus, we can conclude that boiling water in a large pot on a stove have a temperature of 100°C even if it has been boiling for an hour because the temperature of a substance does not change during a phase change.

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2. Calculate the mass of 2.4 moles of
I am Lyosha [343]

That doesnt make sense therefore your question is IRRELEVANT
3 0
3 years ago
SrCl2 (aq) + K2CO3 (aq) —>
Wewaii [24]

Answer: SrCl_2(aq)+K_2CO_3(aq)\rightarrow 2KCl(aq)+SrCO_3(s)

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

A double displacement reaction in which one of the product is formed as a solid is called as precipitation reaction.

The balanced chemical equation is:

SrCl_2(aq)+K_2CO_3(aq)\rightarrow 2KCl(aq)+SrCO_3(s)

8 0
3 years ago
What is the mass in grams of carbon dioxide that would be required to react with 75.8 g of LiOH in the following chemical reacti
Advocard [28]

Answer:

69.6 g CO₂

Explanation:

To find the mass of carbon dioxide, you need to (1) convert grams LiOH to moles LiOH (via molar mass from periodic table values), then (2) convert moles LiOH to moles CO₂ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles CO₂ to grams CO₂ (via molar mass). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units (desired unit in the numerator). The final answer should have 3 sig figs to reflect the given value's sig figs.

Molar Mass (LiOH): 6.9410 g/mol + 15.998 g/mol + 1.008 g/mol

Molar Mass (LiOH): 23.947 g/mol

2 LiOH(s) + 1 CO₂(g) ----> Li₂CO₃(s) + H₂O(l)

Molar Mass (CO₂): 12.011 g/mol + 2(15.998 g/mol)

Molar Mass (CO₂): 44.007 g/mol

75.8 g LiOH          1 mole             1 mole CO₂               44.007 g
------------------  x  ----------------  x  -----------------------  x  -------------------  =
                            23.947 g         2 moles LiOH              1 mole

= 69.6 g CO₂

5 0
3 years ago
An empty graduated cylinder has a mass of 11.4g.When it is filled with an unknown liquid to the 45.2 mL mark the cylinder and th
Lesechka [4]
The density of the liquid is about 1.85 g/mL.

Density is mass/volume. The volume is given (45.2 mL). The mass must be found by subtracting the tare weight of the graduated cylinder from the total:
95.1 g- 11.4g = 83.7g

Using the mass and volume of the liquid, you can now calculate the density:
d = m/v = 83.7g/45.2 mL = 1.8517699115 g/mL.

Of the original values, the least number of significant figures are 3, so the answer must have a degree of accuracy of 3 significant figures:
1.8517699115 g/mL ≈ 1.85 g/mL.
3 0
4 years ago
How is modeling useful to scientists?
baherus [9]
C it illustrates possible outcomes
6 0
3 years ago
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