Question

the partial pressure of oxygen in the atmosphere is 0.2095 atm. calculate the partial pressure in kpa. be sure your answer has the right number of significant digits. kpa

Explanation:

Step1: Identify the conversion factor

The conversion factor between atm and kPa is \(1\space atm = 101.325\space kPa\).

Step2: Set up the conversion

We have \(P = 0.2095\space atm\). To convert to kPa, we use the formula \(P_{kPa}=P_{atm}\times101.325\space\frac{kPa}{atm}\).
Substitute \(P_{atm}=0.2095\) into the formula: \(P_{kPa}=0.2095\times101.325\).

Step3: Perform the calculation

$$
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$$

Step4: Determine significant digits

The given value \(0.2095\) has four significant digits. So, the result \(21.2275875\) should be rounded to four significant digits. Rounding \(21.2275875\) to four significant digits gives \(21.23\).

Answer:

\(21.23\space kPa\)