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Elden [556K]
3 years ago
14

What is the mass in grams of 3.0x10^23 molecules of carbon dioxide??

Chemistry
1 answer:
Sonja [21]3 years ago
4 0
Moles of CO2 = number of molecules / 6.02x10^23. = 3x10^23/6.02x10^23 = 0.5moles. Therefore, mass of CO2 = moles x molecular mass of CO2= 0.5x44 = 22gm.
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Calculate the molarity of a solution of acetic acid made by dissolving 16.00 mL of glacial acetic acid at 25 ∘C in enough water
Soloha48 [4]

Answer : The molarity of solution is, 1.216 g/mole

Explanation : Given,

Density of acetic acid = 1.049 g/ml  (standard value)

Volume of acetic acid = 16.00 ml

Volume of solution = 230.0 ml

Molar mass of acetic acid CH_3COOH = 2(12)+4(1)+2(16)=60g/mole

First we have to calculate the mass of acetic acid.

Mass=Density\times Volume

Mass=1.049g/ml\times 16ml=16.784g

Now we have to calculate the molarity of solution.

Molarity=\frac{\text{Mass of acetic acid}\times 1000}{\text{Molar mass of acetic acid}\times \text{volume of solution in ml}}

Molarity=\frac{16.784g\times 1000}{60g/mole\times 230ml}

Molarity=1.216g/mole

Therefore, the molarity of solution is, 1.216 g/mole

7 0
3 years ago
How do you percipitate things from solution to telluric acid?
mario62 [17]
I think this is your answer

4 0
4 years ago
Draw the alcohol that is the product of the reduction of 3-methylpentanal.
natali 33 [55]

Answer: The product from the reduction reaction is

CH3-CH2-CH(CH3)-CH2-CH2OH

IUPAC name; 3- Methylpentan-1-ol

Explanation:

Since oxidation is simply the addition of oxygen to a compound and reduction is likewise the addition of hydrogen to a compound.

Therefore, hydrogen is added onto the carbon atom adjacent to oxygen in 3- methyl pentanal

CH3 CH2 CHCH3 CH2 CHO thereby -CHO( aldehyde functional group) are reduced to CH2OH ( Primary alcohol) which gives;

3-methylpenta-1-ol .

The structure of the product is:

CH3-CH2-CH(CH3)-CH2-CH2OH

7 0
4 years ago
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0.555 = 1.90/V
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6 0
3 years ago
What is the SI unit of pressure and from what units is it derived
irga5000 [103]

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The Pascal (Pa) or kilo pascal (kPa) as a unit of pressure measurement is widely used throughout the world and has largely replaced the pounds per square inch.


5 0
4 years ago
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