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Daniel [21]
3 years ago
12

How many moles are 5.55 x 10 ^25 atoms of mg​

Chemistry
1 answer:
11111nata11111 [884]3 years ago
3 0

Answer:

92.2/5.55e+25

Explanation:

You might be interested in
How many moles of sulfur are in 80 grams of sulfur?
Norma-Jean [14]

Answer:

2.5 moles

Explanation:

Number of moles = MassMolar mass

= 80⋅g32.06⋅g⋅mol−1 = ??mol

Note that sulfur likely exists in its elemental state as S8. I am perfectly justified in treating sulfur as S. The number of sulfur atoms is the same in each case.

4 0
2 years ago
Calculate the density of an object with a mass of 7.481 g and volume of 6.9 mL.​
icang [17]

Answer:

1.08 g/mL

Explanation:

Density=Mass/Volume therefore you would do the mass which is 7.481 g divided by the volume which is 6.9 mL and get 1.08 g/mL since you combine the two labels!

4 0
3 years ago
What evidence do you have that tpgs-750m increases the reaction rate? How does tpgs-750m act to increase the reaction rate?
notka56 [123]

TPGS-750 M conducts reaction under lower temperature then the reactions carried out in organic solvents.

<h3>What is tpgs-750m ?</h3>

It is a chemical molecule of the second generation known as an amphiphile, with both hydrophilic and lipophilic qualities.

  • In contrast to any other organic solvent, water is used for transition metal catalysed cross-coupling, making TPGS-750M a second generation surfactant with physical features that encourage this process.

  • The hydrophilic portion of TPGS-750M, which is utilised in medicine, is made of Poly(ethylene glycol), and the hydrophobic portion is made of the vitamin E compound alpha-tocopherol.

Learn more about Reaction rate here:

brainly.com/question/25724512

#SPJ4

7 0
1 year ago
A 48.3 mL sample of gas in a cylinder is warmed from 22 °C to
goldenfox [79]

Answer:

58.94 mL

Explanation:

V1 = 48.3 mL             V2 = v mL

T1 = 22 degree celsius OR 295 k         T2 = 87 degree celsius OR 360 k

We will use the gas equation:

PV = nRT

Since the Pressure (p) , number of moles (n) and the universal gas constant(R) are all constants in this given scenario,

we can say that

V / T = k , (where k is a constant)

Since this is the first case,

V1 / T1 = k --------------------(1)

For case 2:

Since we have the same constants, the equation will be the same

V / T = k (where k is the same constant from before)

V2 / T2 = k (Since this is the second case) ------------------(2)

From (1) and (2):

V1 / T1 = V2 / T2

Now, replacing the variables with the given values

48.3 / 295 = v / 360

v = 48.3*360 / 295

v = 58.94 mL

Therefore, the final volume of the gas is 58.94 mL

4 0
3 years ago
True or False: All temperatures used in the comparisons or calculations of gases must use the Kelvin temperature scale.
Digiron [165]

Answer:

True

Explanation:

I used my notes from class today. I could be wrong.

6 0
4 years ago
Read 2 more answers
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