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2 years ago

The picture below shows water ripples interacting.

Chemistry

1 answer:

iren2701 [21]2 years ago

3 0

Answer:

Explanation:

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A sample of 40.0 mL of hydrogen is collected by water displacement at a temperature of 20 degrees Celcius. The barometer reads 7

Roman55 [17]

Answer : The volume of the hydrogen at STP is, 36.8 mL

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 751 torr

$P_2$ = final pressure of gas at STP = 760 torr

$V_1$ = initial volume of gas = 40.0 mL

$V_2$ = final volume of gas at STP = ?

$T_1$ = initial temperature of gas = $20^oC=273+20=293K$

$T_2$ = final temperature of gas at STP = $0^oC=273+0=273K$

Now put all the given values in the above equation, we get:

$\frac{751torr\times 40.0mL}{293K}=\frac{760torr\times V_2}{273K}$

$V_2=36.8mL$

Therefore, the volume of the hydrogen at STP is, 36.8 mL

6 0

3 years ago

Consider the elemts Ca,Ba,As, and Bi. Which has the...

fiasKO [112]

Symbol Element Atomic Radius Electronegativity   Ionization Energy
Ca Calcium 194 pm       1 57110 kJ/mol
Ba Barium 253 pm 0.89 3.6 x 10³ kJ/mol
As Arsenic    114 pm 2.18 12310 kJ/mol
Bi Bismuth 143 pm    2.02 8520 kJ/mol

Based on the above information.
The element with the largest radius is Ba.
The element with the highest electronegativity is As
The element with the hightest Ionization energy is Ca.

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3 years ago

Which environment is BEST for an organism that sleeps during the day and digs holes in the ground for shelter?

Zigmanuir [339]

I’d probably say a forest or a dessert

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3 years ago

A coin of mass 0.005 kg

Marysya12 [62]

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3 years ago

What are the possible bonding arrangements for Nitrogen

koban [17]

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3 years ago