To find the percent, divide 9 by 27 to get a decimal, then multiply the decimal by 100 to get the percent:
9 / 27 = 0.333
0.333 x 100 = 33.3%
Estimate
3,794,100
= 4<span>,000,000
= 4 x 10^6
answer is </span><span>C) 4 x 10^6 </span>
Using an ideal gas equation to solve the problem. Then the original volume is 17.67 liters.
<h3>What is an ideal gas equation?</h3>
An ideal gas is a theoretical composed of a set of randomly moving gas particles that interact only through elastic collision.
Given
A balloon containing 0.500 mol at 0. 00°C and 65.0 kPa pressure are expanded by adding more argon.
Pressure (P) = 65 kPa
Mole (n) = 0.5 mol
Temperature (T) = 0 °C = 273.15 K
Universal gas constant (R) = 8.317 L.kPa/mol.K
We know the ideal gas equation

Put the values, we have

Thus, the original volume is 17.67 liters.
More about the ideal gas equation link is given below.
brainly.com/question/4147359