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lyudmila [28]
3 years ago
12

Convert 450 mm to Dm

Chemistry
2 answers:
lisabon 2012 [21]3 years ago
7 0

440 mm is equal to 4.4 dm

Ulleksa [173]3 years ago
5 0
450 Millimeters are equivalent to 4.5 Decimeters
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Assume that the \rm HCl sample here acts like an ideal gas. By Boyle's Law, the pressure P of the gas should be inversely proportional to its volume V.

For example, let the initial volume and pressure of the sample be V_1 and P_1. The new volume V_2 and pressure P_2 of this sample shall satisfy the equation: P_1 \cdot V_1 =P_2 \cdot V_2.

In this question,

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The goal is to find the new pressure of this gas, P_2.

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\begin{aligned} & P_2\\ &= \frac{P_1 \cdot V_1}{V_2} \\ &= \frac{256\; \rm mL \times 67.5\; \rm mmHg}{135\; \rm mL} \\ & \approx 128\; \rm mmHg\end{aligned}.

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