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Lapatulllka [165]
3 years ago
12

What mass, in grams, of solute is needed to prepare the following solution?

Chemistry
1 answer:
ANTONII [103]3 years ago
8 0

Answer:

fff.aiittkkiiiiiiiiuuiiiiiiiiiiiljjhhhhuuuu

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Light energy (in both visible and invisible forms) is a form of _____ energy.
Ainat [17]

Answer:

D: Electromagnetic

Explanation:

Chemical energy is the energy in chemical bonds which is a type of potential energy, eliminating both B and C. While kinetic energy is the energy of motion, photons are a wave/ particle so thinking it would have kinetic energy wouldn't be your fault but light is on the electromagnetic spectrum making D the most likely answer.

7 0
3 years ago
Read 2 more answers
13. 
mote1985 [20]

Answer:

Meters

Explanation:

Meter is The basic unit of length (or distance) in the Metric System. The symbol is m.

7 0
3 years ago
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Suppose that you add 24.3 g of an unknown molecular compound to 0.250 kg of benzene, which has a K f of 5.12 oC/m. With the adde
pochemuha

Solution :

We know that :

$\Delta T_f = k_f.m$  and   $m=\frac{w_2}{m_2 \times w_1}$

Then, $\Delta T_f = k_f.\frac{w_2}{m_2.w_1}$   ..................(1)

Where,

w_1 = amount of solvent (in kg)

w_2 = amount of solute (in kg)

m_2 = molar mass of solute (g/mole)

m = molality of solution (mole/kg)

Given :

\Delta T_f = 3.14\ ^\circ C,   k_f= 5.12\ ^\circ C/m

                              =5.12 \ ^\circ C/mole/kg

                              =5.12 \ ^\circ C \ kg/mole

w_1 = 0.250 kg,  w_2 = 24.3 g

Then putting this values in the equation is (1),

$3.14 = \frac{5.12 \times 24.3}{m_2 \times 0.250}$

$m_2 = \frac{5.12 \times 24.3}{3.14 \times 0.250}$

m_2= 158.49  g/mole

So, the molar mass of the unknown compound is 158.49 g/mole.

7 0
3 years ago
Prepare a journal about the topic Water-The Life Giving Liquid
Alex

Water is known as a life-giving liquid because every living organism depends on the water for its survival.

<h3>Journal about the topic Water-The Life Giving Liquid</h3>

Water is also called a life-giving liquid because without water life on earth is not possible. All other living organisms need to consume water to survive and grow in size. We need water for many other activities such as cleaning, washing, cooking and irrigation. Water is essential for all living things including humans, animals and plants. Water is called wonder liquid as it can dissolve large number of substances. This property enables water to be a great solvent. Most of the chemical reactions of the living world is carried out in water as a medium so that's why water is known as Life Giving Liquid.

So we can conclude that Water is known as a life-giving liquid because every living organism depends on the water for its survival.

Learn more about water here: brainly.com/question/1313076

#SPJ1

8 0
1 year ago
What is the mass of 1.2x10^25 atoms of Helium
Molodets [167]

Answer:

dunno

Explanation:

sorry

4 0
3 years ago
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