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yawa3891 [41]
3 years ago
14

Which statement below is true only for homogeneous catalysts?

Chemistry
1 answer:
Liono4ka [1.6K]3 years ago
8 0

Answer:

b

Explanation:

In case of homogeneous catalysis , catalyst and reactant should be in same phase

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Short note on Gabriel synthesis​
rjkz [21]

Explanation:

The Gabriel synthesis is a chemical reaction that transforms primary alkyl halides into primary amines. Traditionally, the reaction uses potassium phthalimide. ... The alkylation of ammonia is often an unselective and inefficient route to amines. In the Gabriel method, phthalimide anion is employed as a surrogate of H2N−.

7 0
2 years ago
Describe the relationship between temperature and kinetic energy.
RSB [31]
Temperature is a measure of the average kinetic energy of the particles in an object.
7 0
3 years ago
2. A student has a centrifuge tube containing 14.0 g of t-butanol and is asked to make a 1.2 m solution of ethanol/t-butanol. Ho
Vaselesa [24]

Answer:

0.774g of ethanol

0.970mL of ethanol

Explanation:

Molality is an unit of concentration defined as the ratio between moles of solute and kg of solvent.

In the problem, you need to prepare a 1.2m solution of ethanol (Solute) in t-butanol (solvent).

14.0g of butanol are <em>0.014kg </em>and as you want to prepare the 1.2m solution, you need to add:

0.014kg × (1.2moles / kg) = 0.0168 moles of solute = Moles of ethanol

To convert moles of ethanol to mass you require molar mass (Molar mass ethanol, C₂H₅OH = 46.07g/mol). Thus, mass of 0.0168 moles are:

0.0168moles Ethanol ₓ (46.07g / mol) =

<h3>0.774g of ethanol</h3>

And to convert mass in g to mL you require density of the substance (Density of ethanol = 0.798g/mL):

0.774g ₓ (1mL / 0.798g) =

<h3>0.970mL of ehtanol</h3>
8 0
2 years ago
Identify the elements that are found as liquids at room temperature. What is the state of matter of the majority of the elements
N76 [4]


Mercury (Metal) is in liquid form at room temperature
Bromine (Non-Metal) is in liquid form at room temperature

Most of the elements are solid, 11 gases and 6 liquids
3 0
2 years ago
Read 2 more answers
The volume of a gas is 450 mL when its pressure is 1.00 atm. If the temperature of the gas does not change, what is the pressure
Delvig [45]

Answer:

0.225 atm

Explanation:

v1=450ml÷1000=0.45l(1l=1000ml)

P1=1

v2=2.00l

p2=?

p1v1=p2v2

p2=p1v1/v2

=1×0.45/2

=0.225

so the answer is first one

3 0
2 years ago
Read 2 more answers
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