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Semenov [28]
3 years ago
11

Define inference and explain how it is used to form conclusions

Chemistry
1 answer:
k0ka [10]3 years ago
4 0
Guess on information you already had
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A student prepares a 100.0 mL solution using 44.7 grams of potassium nitrite. They then take 11.9 mL of this solution and dilute
Naddik [55]

Answer:

0.52 g of KNO₃ are contained in 19.7 mL of diluted solution.

Explanation:

We can work on this problem in Molarity cause it is more easy.

Molarity (mol/L) → moles of solute in 1L of solution.

100 mL of solution = 0.1 L

We determine moles of solute: 44.7 g . 1mol /101.1 g = 0.442 mol of KNO₃

Our main solution is 0.442 mol /0.1L = 4.42 M

We dilute: 4.42 M . (11.9mL / 200mL) = 0.263 M

That's concentration for the diluted solution.

M can be also read as mmol/mmL, so let's find out the mmoles

0.263 M . 19.7mL = 5.18 mmol

We convert the mmol to mg → 5.18 mmol . 101.1 mg / mmol = 523.7 mg

Let's convert mg to g → 523.7 mg . 1 g / 1000 mg = 0.52 g

6 0
3 years ago
What is mixture of noodles in a bowl​
enyata [817]
Ramen noodles?? Soup???
5 0
2 years ago
H e l p,,, ill give brainliest :)
mote1985 [20]

Hi there! :)

Both are compounds.

CO_{2} contains 1 carbon (C) atom and 2 oxygen (O)  atoms.

It contains two different elements, so it is a COMPOUND.

Na_{2} O is an IONIC compound with elements Sodium (Na) and Oxygen (O), which are different elements. Therefore, it is also a COMPOUND.

6 0
2 years ago
Would you sit with this person at the lunch table?
Kipish [7]

Answer:

Sure because I need more friends

7 0
3 years ago
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All scientists try to base their conclusions on
lana66690 [7]
<span>All scientists try to base their conclusions on the experiments they have conducted and they have repeated them to be sure of it. </span>
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3 years ago
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