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leonid [27]
3 years ago
13

Consider a steaming aluminum soda-pop can that contains a small amount of boiling water. When it is quickly inverted into a bath

of cooler water the can is dramatically crushed by atmospheric pressure. This occurs because the pressure inside the can is rapidly reduced by A) contact with the relatively cool water. B) sudden slowing of the air and steam molecules inside. C) condensation of steam inside. D) reduced internal energy. E) rapid conduction of heat to the relatively cool water.
Chemistry
1 answer:
djverab [1.8K]3 years ago
4 0

Answer:

C) condensation of steam inside.

Explanation:

Steam only condenses on a surface when the temperature of that surface is less than the saturation temperature for the pressure at which the steam is found. During this process the water molecule releases energy in the form of heat, in this case the water contained in the can brings a very high temperature causing the temperature of the cold water bath to rise abruptly thus releasing energy which makes the can crushed.

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When 8.0 grams of sodium hydroxide is dissolved in sufficient water to make 400. mL of solution, what is the concentration of th
nata0808 [166]

Answer:

The concentration of this sodiumhydroxide solutions is 0.50 M

Explanation:

Step 1: Data given

Mass of sodium hydroxide (NaOh) = 8.0 grams

Molar mass of sodium hydroxide = 40.0 g/mol

Volume water = 400 mL  = 0.400 L

Step 2: Calculate moles NaOH

Moles NaOH = mass NaOH / molar mass NaOH

Moles NaOH = 8.0 grams / 40.0 g/mol

Moles NaOh = 0.20 moles

Step 3: Calculate concentration of the solution

Concentration solution = moles NaOH / volume water

Concentration solution = 0.20 moles / 0.400 L

Concentration solution = 0.50 M

The concentration of this sodiumhydroxide solutions is 0.50 M

6 0
3 years ago
How many grams of Sodium will have the same number of atoms as 6 grams of Magnesium?
Ksivusya [100]

Answer:

92gm

Explanation:

Atomic mass of Mg=24g=1 mole of Mg

∴  24g =1 mole of Mg contain 6.022×10^23 atom 

∴  6gm contains 246.022×1023×6

                            =4×6.022×10^23 atoms

Now according to question, there are 6.022×1023 atoms of Na 

23gm of Na contains 6.022×10^23 atoms

∴6.022×4×10^23 atoms of Na weighs 23×6.022×10^23×4/6.022×10^23⇒92gm

3 0
3 years ago
HELP ME!!! ASAP!!! I'LL MARK BRAINLLEST!!!!
dimulka [17.4K]

Answer:

<h3>it is important to carefully examine chemical reactions because there are many ways substances can be <em><u>reacting</u></em> without a chemical reaction taking place.</h3>

8 0
2 years ago
Which unit is used for measuring atomic mass? A. atomic mole B. grams/mole C. grams D. atomic mass unit E. atomic mass weight
mihalych1998 [28]

The atomic mass is defined as the mass an atom of an element. The atomic mass in approximation is equal to the sum of number of neutrons and protons in the nucleus of an atom (mass number). The units which are used for measuring the atomic mass is atomic mass unit, u.

Thus, the correct option is option E that is atomic mass unit is used for measuring atomic mass.

7 0
2 years ago
Read 2 more answers
If 4.50 g of methane gas (CH4) is in a 2.00-L container at 35°C, what is the pressure in the
Airida [17]

Answer:

The answer to your question is Pressure = 3.55 atm

Explanation:

Data

R = 0.082 atm L/mol°K

mass = 4.5 g

volume = 2 L

temperature = 35°C

Pressure = ?

Process

1.- Calculate the moles of Methane

molar weight = 12 + 4 = 16 g

                          16 g of Methane --------------- 1 mol

                          4.5 g                    --------------- x

                           x = (4.5 x 1)/16

                           x = 0.281 moles

2.- Convert temperature to Kelvin

°K = 273 + 35

    = 308

3.- Use the ideal gas law to solve this problem

          PV = nRT

- Solve for P

           P = nRT / V

- Substitution

           P = (0.281)(0.082)(308) / 2

- Simplification

           P = 7.097 / 2

- Result

            P = 3.55 atm

4 0
3 years ago
Read 2 more answers
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