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kow [346]
3 years ago
13

Write word and formula equations for the reaction of naoh and h3po4

Chemistry
1 answer:
ValentinkaMS [17]3 years ago
6 0
3 contraints depend on moles 
naoh:h3po4 
1:1 nah2po4 
2:1 na2hp04 
3:1 na3po4 
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shepuryov [24]

Answer:

in the cell during mitosis or during meiosis

Explanation:

3 0
3 years ago
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Assume that a P orbital is dumbbell shaped the two major lobes in a certain atom contains one electron. In which lobe is electro
Tanya [424]

Answer:

See explanation

Explanation:

The p orbital is threefold degenerate. This implies that the p-sublevel is composed of three orbitals; px, py and pz.

According to Hund's rule, electrons occur singly when filling degenerate orbitals before pairing takes place. Since the three orbitals are degenerate, any of px, py or pz may be first filled.

If one lobe of any of the px, py or pz is first filled, the next electron must go into the next degenerate orbital. When all are filled, pairing of electron spins may now begin.

5 0
3 years ago
In a laboratory, bunsen burner is used to increase the temperature of lime from 10 °C to 50 °C with the thermal energy of 80000
galina1969 [7]

Answer:

c = 100 J/g.°C

Explanation:

Given data:

Mass of lime = 20 g

Heat absorbed = 80,000 J

Initial temperature = 10°C

Final temperature = 50°C

Specific heat capacity of lime = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 50°C - 10°C

ΔT = 40°C

80,000 J = 20 g×c×40°C

80,000 J = 800°C×c

c = 80,000 J /800g.°C

c = 100 J/g.°C

3 0
3 years ago
Using c=λν and E=hν (Where h or Planck’s constant is 6.626 *10 ⁻³⁴Js). Please find the energy that a wavelength has if it has a
sladkih [1.3K]
<span> The energy of wave if it has a wavelength of 3.0 </span>× <span>10⁷ nm is 6.26 </span>× 10⁻²⁴ J.

Attached below, is how to derive that answer.  Note that, E= Energy, λ = wavelength, h = Plank's Constant and C= speed of light

Also, I converted the wavelength from nm to cm.

5 0
3 years ago
Calculate the mole fraction of each component in a solution of 42 g CH3OH, 35 g of chloroform CHCl3, and 50 g C3H7OH
koban [17]

Considering the definition of mole fraction, the mole fraction of each component in the solution is:

  • CH₃OH: 0.54
  • CHCl₃: 0.118
  • C₃H₇OH: 0.342

<h3>Mole fraction</h3>

The molar fraction is a way of measuring the concentration that expresses the proportion in which a substance is found with respect to the total moles of the solution.

<h3>Mole fraction of each component</h3>

In this case, in first place you should know that the molar mass of each component is:

  • CH₃OH: 32 \frac{g}{mole}
  • CHCl₃: 121.35 \frac{g}{mole}
  • C₃H₇OH: 60 \frac{g}{mole}

Now, the number of moles of each compound can be calculated as:

  • CH₃OH: \frac{42 g}{32\frac{g}{mole}}=  1.3125 moles
  • CHCl₃: \frac{35 g}{121.35\frac{g}{mole}}= 0.2884 moles
  • C₃H₇OH: \frac{50 g}{60\frac{g}{mole}}=  0.8333 moles

So, the total moles of the solution can be calculated as:

Total moles = 1.3125 moles + 0.2884 moles + 0.8333 moles

<u><em>Total moles = 2.4342 moles</em></u>

Finally, the more fraction of each component can be calculated as follow:

  • CH₃OH: \frac{1.3125 moles}{2.4342 moles}= 0.54
  • CHCl₃: \frac{0.2884 moles}{2.4342 moles}= 0.118
  • C₃H₇OH: \frac{0.8333 moles}{2.4342 moles}= 0.342

In summary, the mole fraction of each component in the solution is:

  • CH₃OH: 0.54
  • CHCl₃: 0.118
  • C₃H₇OH: 0.342

Learn more about mole fraction:

brainly.com/question/14434096

brainly.com/question/10095502

#SPJ1

4 0
2 years ago
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