All categories

3 years ago

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

You might be interested in

A 256 mL sample of HCl gas is in a flask where it exerts a force (pressure) of 67.5 mmHg. What is the pressure of the gas if it

Effectus [21]

Answer:

The pressure in the new flask would be $128\; \rm mmHg$ if the $\rm HCl$ here acts like an ideal gas.

Explanation:

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,

The initial volume of the gas is $V_1= 256\; \rm mL$ .
The initial pressure of the gas is $P_1 = 67.5\; \rm mmHg$ .
The new volume of the gas is $V_2 = 135\; \rm mL$ .

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

Assume that this sample is indeed an ideal gas. Then the equation $P_1 \cdot V_1 =P_2 \cdot V_2$ should still hold. Rearrange the equation to separate the unknown, $P_2$ . Note: make sure that the units for $V_1$ and $V_2$ are the same before evaluating. That way, the unit of

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

3 0

3 years ago

PLEASE HURRY ASAP WILL GIVE BRAINLIEST

goldfiish [28.3K]

Answer:ype your answer here: Conclusions What conclusions can you draw about the identity of the unknowns? Write an evidence-based claim. Type your answer here: Evaluate the

Explanation:

6 0

2 years ago

What characteristic is descriptive of a solution?

Snezhnost [94]

A solution is a mixture of two or more substances combined so that it is uniform, which means you cannot see the components. <span />

8 0

4 years ago

Photosynthesis requires light, water, and CO2 to work. When one of these factors is in short supply, it is called a limiting fac

belka [17]

A farmer can be more successful in understanding which plant produces and how to grow plants with a higher degree of photosynthesis with less material and time exhaustion, by recognizing what the limiting factor is.

Hope this helps! Please correct me if I'm wrong :)

6 0

3 years ago

I will give the brainliest for who answer this questio but no guessing

xz_007 [3.2K]

IVA: nonmetal/other metals VIIA:halogens VIII: Nobel Gases

8 0

3 years ago

Read 2 more answers