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sasho [114]
4 years ago
5

A sodium flame has a characteristic yellow color due to emissions of wavelength 589 nm. What is the mass equivalence of one phot

on of this wavelength (1 J = 1 kg·m²/s²)?
Chemistry
1 answer:
Sladkaya [172]4 years ago
8 0
I really don’t know but I’ll tell you soon
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Calcium propionate [Ca(CH₃CH₂COO)₂; calcium propanoate] is a mold inhibitor used in food, tobacco, and pharmaceuticals.(a) Use b
tekilochka [14]

We anticipate that the resulting aqueous solution will be basic.

<h3>What is the definition of a weak acid?</h3>

Weak acids are those that do not dissociate completely in solution. A weak acid is defined as any acid that is not a strong acid. A weak acid's strength is determined by how much it dissociates; the more it dissociates, the stronger the acid.

<h3>What exactly is a conjugate base?</h3>

A conjugate base is the base member, X-, of two compounds that transform into one another by gaining or losing a proton. In a chemical reaction, the conjugate base has the ability to gain or absorb a proton.

<h3>According to the given information:</h3>

Calcium propionate [Ca(CH₃CH₂COO)₂

We know that Calcium propionate dissolves completely in water.

So,

Ca(CH_3CH_2+COO)_2→Ca^2^+ +2CH_{3}CH_2COO−

Water can protonate the propionate anion. When everything is balanced,

CH_3CH_2\\COO−+H2O⇌CH_3CH_2COOH+OH−

We anticipate that the resulting aqueous solution will be basic.

To know more about Weak Acids and Conjugate Bases visit:

brainly.com/question/4483911

#SPJ4

4 0
1 year ago
What is the mass of of 3.20 X 10^23 particles of Co2?​
vitfil [10]

Answer:

Mass = 23.36 g

Explanation:

Given data:

Number of particles of CO₂ = 3.20 ×10²³

Mass of  CO₂ = ?

Solution:

1 mole contain 6.022×`10²³ particles,

3.20 ×10²³ particles  × 1 mol / 6.022×`10²³ particles

0.531 mol

Mass of CO₂:

Mass = number of moles × molar mass

Molar mass = 44 g/mol

Mass =  0.531 mol× 44 g/mol

Mass = 23.36 g

6 0
3 years ago
If a 375 mL sample of water was cooled from 37.5 degrees Celsius to 0 degrees Celsius , how much heat was lost (in joules)
alexgriva [62]
Please, you have to apply the formula below:<span>Q=c∗m∗Δt</span>where Q is the energy lost, c is the specific heat of water, m is the mass of water involved, so m=3.75 *10^-1 Kg c=4,184 J/(Kg*°C) delta t=37.5 °C

Taking density of water as 1000kg/m3. Mass of water would be 0.375kg. So, heat lost would be<span>H=mCDeltaT</span>H=0.375*4184*37.5 = 58837.5J





6 0
3 years ago
Read 2 more answers
What is the poisonous gas released by incomplete combustion(the name not formula)
Musya8 [376]

Answer:

CARBON MONOXIDE

Explanation:

Carbon monoxide is produced by incomplete combustion of hydrocarbon fuels. Poisoning by carbon monoxide is caused by operating improperly vented space heaters or furnaces in poorly ventilated buildings.

7 0
3 years ago
Match the scientists to their contributions to the development of the periodic table.
stiv31 [10]
Where’s the chart and scientists?
3 0
4 years ago
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