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dsp73
2 years ago
11

24 g copper is submerged in water in a graduated cylinder,and the total volume increases by 2.7 mL. What is the density of coppe

r?
Chemistry
1 answer:
Andrews [41]2 years ago
3 0

Answer:8.89

Explanation:

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Calculate the mass fraction of sodium chloride in the solution if 20 g of it is dissolved in 300 ml of water.
MA_775_DIABLO [31]

The mass fraction of sodium chloride is 0.0625

<h3>What is the mass fraction of sodium chloride in the solution?</h3>

The mass fraction of sodium chloride is the ratio of the mass of sodium chloride to the total mass of the solution.

The mass fraction of sodium chloride is determined as follows;

mass of sodium chloride = 20 g

  • mass of water = volume * density

density of water = 1 g/mL

volume of water = 300 mL

mass of water = 300 mL * 1 g/mL

mass of water = 300 g

total mass of solution = 20 + 300 = 320 g

mass fraction of sodium chloride = 20/320

mass fraction of sodium chloride = 0.0625

Learn more about mass fraction at: brainly.com/question/14783710

#SPJ1

5 0
1 year ago
What is the formula of the compound formed between the potassium ion and the sulfide ion?
KIM [24]
The formula for K+ and S-2 is K2S because you need 2 potassium ions to balance out the sulfide ion
4 0
3 years ago
Boyles law states that...
kari74 [83]
Idk buddy I need help as well
4 0
3 years ago
Read 2 more answers
2C4H10+13o2= 8CO2+10H2O
Gennadij [26K]

Answer:

your answer will be between 16-17 moles

Explanation:

The combustion of butane is 2 C4H10 + 13 O2 = 8 CO2 + 10 H2O. Every two moles of C4H10 can produce 10 moles of water,

5 0
3 years ago
Write an equation that shows the reaction between acetic acid and triethylamine (CH3CH2)3N. Draw all non-bonding lone electron p
Anni [7]

Answer:

-) Acid-base reaction

-) Carboxylic acid, alcohol, alkene and ketone

Explanation:

For the reaction between acetic acid and triethylamine, we will have an <u>acid-base reaction</u>. Therefore a s<u>alt would be produced</u> in this case an  <u>"ammonium quaternary salt"</u>. Also, we have to remember that on this reaction the acid is the acetic acid and the base is the triethylamine. See figure 1

For the second question, we have to check the <u>structure of Prostaglandin</u> E1 in which we have the functional groups:

<u>1) Carboxylic acid</u>

<u>2) Alcohol</u>

<u>3) Alkene</u>

<u>4) Ketone</u>

See figure 2.

I hope it helps!

8 0
3 years ago
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