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3 years ago

Give two characteristics of liquid state

1 answer:

8 0

Answer: Liquids have the following characteristics: no definite shape (takes the shape of its container) has definite volume. particles are free to move over each other, but are still attracted to each other. liquids have lesser densities than solids. Intermolecular forces of attraction is weaker than solids. They have considerable space between the particles. Liquids flow from higher to lower level. Liquids have their boiling points above room temperature, under normal conditions.

I gave many characteristics

Hope this helps :)

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What would the volume (L) of 6.6 g of CO2 be if it were measured at the same temperature and pressure as that of the experiment

Elan Coil [88]

Answer:

The correct answer is 3.36 L

Explanation:

The molecular weight of CO₂ is 44 g/mol (2 O + 1 C= (2 x (16 g/mol )) + 12 g/mol). We have 44 g in 1 mol CO₂, and we want to know how many mol are in 6.6 g:

44 g -------------- 1 mol CO₂

6.6 g -------------- X= 6.6 g x 1 mol / 44 g = 0.15 mol

In normal conditions of temperature and pressure, 1 mol of ideal gas occupies 22.4 L of volume, thus:

1 mol CO₂ ------------ 22.4 L

0.15 mol -------------- X= 3.36 L

So, 6.6 g CO₂ are equivalent to 0.15 mol CO₂ and they occupy 3.36 L.

7 0

4 years ago

Our good friend and pseudo scientist, homer simpson, attempts to analyze 300 mg of an unknown compound containing only c and h b

iragen [17]

$C_{x}H_{y} + O_{2} --\ \textgreater \ x CO_{2} + \frac{y}{2} H{2}O

540mg H_{2}O* \frac{1 mmol H_{2}O}{18 mg H_{2}O} =30 mmol H_{2}O

\\ \\30 mmolH_{2}O -have - 60 mmol H
\\ \\ 60 mmol H* \frac{1mg H}{1 mmol H} =60 mg H
\\ \\300mg C_{x}H_{y} - 60 mg H= 240 mg C
\\ \\ 240 mgC* \frac{1mmol}{12mg} =20 mmol C

20 mmol C: 60 mmol H=1 mol C : 3 mol H

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7 0

4 years ago

At constant pressure increasing the temperature of a fixed amount of gas will do what

Naddika [18.5K]

Answer:

For a fixed mass of gas at constant pressure, the volume is directly proportional to the kelvin temperature. That means, for example, that if you double the kelvin temperature from, say to 300 K to 600 K, at constant pressure, the volume of a fixed mass of the gas will double as well.

5 0

3 years ago

the reaction AB2C (g) <---> B2 (g) + AC (g) reached equilibrium at 900 K in a 5.00 L vessel. At equilibrium 0.0840 mol of

Verizon [17]

Answer:

k = 4,92x10⁻³

Explanation:

For the reaction:

AB₂C (g) ⇄ B₂(g) + AC(g)

The equilibrium constant, k is defined as:

$k = \frac{[B_{2}][AC]}{[AB_2C]}$ (1)

Molar concentration of the species are:

[AB₂C]: 0,0840mol / 5L = 0,0168M

[B₂]: 0,0350mol / 5L = 0,0070M

[AC]: 0,0590mol / 5L = 0,0118M

Replacing this values in (1):

$k = \frac{[0,0070][0,0118]}{[0,0168]}$

k = 4,92x10⁻³

I hope it helps!

7 0

3 years ago

Równania reakcji chemicznej

Aliun [14]

Answer:

Reakcja chemiczna jest opisana równaniem chemicznym, wyrażeniem określającym tożsamość i ilość substancji biorących udział w reakcji. Równanie chemiczne pokazuje początkowy związek (związki) - reagenty - po lewej stronie, a końcowy związek (związki) - produkty - po prawej stronie, oddzielone strzałką.

Explanation:

5 0

4 years ago

Give two characteristics of liquid state​

Give two characteristics of liquid state