A balloon is floating around outside your window. The temperature outside is -1 °C, and the air pressure is 0.800 atm. Your neighbor, who released the balloon, tells you that he filled it with 5.00 moles of gas. What is the volume of gas inside this balloon?
Express your answer to three significant figures and include the appropriate units.
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HA
?
Vballoon
Value
Units
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Part B
A 14.0 L gas cylinder is filled with 5.00 moles of gas. The tank is stored at 7 °C. What is the pressure in the tank?
Express your answer to three significant figures and include the appropriate units.
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140 L (3 sig-figs; includes the zero)*

Explanation:

PV = nRT => V = nRT/P

P = 0.800atm

V = ?

n = 5 moles

R =0.08206 L·atm/mol·K

T = -1°C = (-1 + 273)K = 272K

V = nRT/P = (5mol)(0.08206 L·atm/mol·K)(272K)/(0.800atm) = 139.5 L

*=> 140 Liters (3 sig-figs) => zero is a sig-fig b/c it was result of rounding 139.5 Liters to obtain 140 Liters.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

mark brainliest and have a great day!

c is the answer because when something is left after something evaporates that shows the chemical change.