All categories

2 years ago

Calculate the ratio of effusion rates of cl2 to f2 .

1 answer:

6 0

Answer: Graham's law of gaseous effusion states that the rate of effusion goes by the inverse root of the gas' molar mass. râšM = constant Therefore for two gases the ratio rates is given by: r1 / r2 = âš(M2 / M1) For Cl2 and F2: r(Cl2) / r(F2) = âš{(37.9968)/(70.906)} = 0.732 (to 3.s.f.)

You might be interested in

State what would be observed when the following pairs of reagents are mixed in a test tube.

Mandarinka [93]

Answer:

(i). C6H2COOH and Na2CO3(aq)

observation: Bubbles of a colourless gas (carbon dioxide gas)

(ii) CH3CH2CH2OH and KMnO4 /H

observation: The orange solution turns green.

[This is because oxidation of propanol to propanoic acid occurs]

(iii) CH3CH2OH and CH3COOH + conc. H2SO4

observation: A sweet fruity smell is formed.

[This is because an ester, diethylether is formed]

(iv) CH3CH = CHCH3 and Br2 /H2O

observation: a brown solution is formed.

4 0

2 years ago

If 450 grams of dextrose are dissolved in 650ml Of water with a resultant volume of 1 liter what is the percent concentration (w

krek1111 [17]

Considering the definition of mass volume percentage, the percent concentration of dextrose is 45%.

<h3>Mass volume percentage</h3>

Mass volume percentage (% m/V) is a measure of concentration that indicates the number of grams of solute per 100 volume units of the solution. In other words, the volume percent of a component in the solution is defined as the ratio of the mass of the component to the volume of the solution, expressed as a percentage.

The mass volume percentage of a solution is determined by the following expression:

$Mass volume percentage=\frac{mass of solute}{volume of solution}x100$

<h3>Percent concentration in this case</h3>

In this case, you know:

mass of solute= 450 grams
volume of solution= 1 L= 1000 mL

Replacing in the definition of mass volume percentage:

$Mass volume percentage=\frac{450 grams}{1000 mL}x100$

Solving:

mass volume percentage= 45%

Finally, the percent concentration of dextrose is 45%.

Learn more about mass volume percentage:

brainly.com/question/14471247

brainly.com/question/18850112

#SPJ1

7 0

1 year ago

The volume of the salt solution is 1000 mL. If the density of the solution is 1.0g/mL, calculate the mass of the solution. Check

xxMikexx [17]

Answer:

1000kg

Explanation:

Density=mass/ volume

Mass= Density× volume

Mass= 1.0g/ml×1000ml

Mass= 1000kg

6 0

2 years ago

The following questions refer to the graph below, where sulfur trioxide is put into a sealed bottle and allowed to stand over ti

OleMash [197]

The concentration of the sulfur trioxide decreases with time due to its decomposition into sulfur dioxide and oxygen.

<h3>What is the balanced equation for the decomposition of sulfur trioxide into sulfur dioxide and oxygen?</h3>

The balanced equation for the decomposition of sulfur trioxide into sulfur dioxide and oxygen is given below as:

2 SO₃ -----> 2 SO₂ + O₂

The addition of more sulfur trioxide to the bottle will result in increase in the volume of oxygen present as equilibrium will shift towards formation of products.

The addition of more sulfur dioxide to the bottle will result in decrease in the volume of oxygen present as equilibrium will shift towards formation of sulfur trioxide due to increase in product concentration.

Based on the graph, if the bottle is sealed, the concentration of sulfur trioxide will remain in dynamic equilibrium with the concentration of the products after the second day.

Based on the above information and reaction, the best way to reduce the amount of SO3 in the atmosphere, and thus reduce the amount of acid rain is to allow it to decompose before emission into the atmosphere,

Therefore, the concentration of the sulfur trioxide decreases with time due to its decomposition into sulfur dioxide and oxygen.

Learn more about sulfur trioxide decomposition at: brainly.com/question/10982712

#SPJ1

3 0

1 year ago

Morals and ethics can always,sometimes,not be tested by science

dangina [55]

Morals can not be tested by science because different people have different morals. Science can not test Morlas and Ethics.

7 0

2 years ago