3 years ago

WHY IS IT IMPORTANT TO HAVE A LARGE SAMPLE SIZE IN ANY EXPERIMENT?

Chemistry

1 answer:

Anon25 [30]3 years ago

5 0

It is important because if the sample size is smaller, outliers could skew the data more than if it was large.

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If the temperature of 1000 mL of gas is changed from -86oC to 101oC. What is the approximate final volume?

valentinak56 [21]

Answer:

2000 mL

Explanation:

We have the following data:

Initial volume: V₁ = 1000 mL

Initial temperature: T₁ = -86°C + 273 = 187 K

Final temperature: T₂= 101°C + 273 = 374 K

According to Charles' law, as the temperature of a gas is increased at constant pressure, the volume is increased. That is expressed mathematically as:

V₁/T₁ = V₂/T₂

Thus, we calculate the final volume V₂ as follows:

V₂ = V₁/T₁ x T₂ = (1000 mL)/187 K x 374 K = 2000 mL

Therefore, the final volume is 2000 mL.

5 0

3 years ago

If the frequency of an FM wave is 8.85 × 107 hertz, what is the period of the FM wave?

Keith_Richards [23]

NAMASTE

HERE IS YOUR ANSWER:

$\boxed{Frequecy = \frac{1}{time \: period} }$

Frequency (given) = 8.85× ${10}^{7}$ hz

time period =
$\frac{1}{8.85 \times {10}^{7}}$

= 0.112 × ${10}^{-7}$

= 1.12 × ${10}^{-8}$