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pychu [463]
3 years ago
12

Please help correct answer will get brainliest.

Chemistry
2 answers:
algol [13]3 years ago
4 0

Answer:

The answer is ultra violent light

Explanation:

Andru [333]3 years ago
3 0

Answer:

B.

Explanation:

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What determines the property of hardness in a mineral?
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3 years ago
Calcuate the number of<br> grams of solute in 453.9mL<br> of 0.237 M calcium acetate
AysviL [449]

The number of  grams : 17.082 g

<h3>Further explanation</h3>

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

\large {\boxed {\bold {M ~ = ~ \dfrac {n} {V}}}

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

453.9 mL  of 0.237 M calcium acetate

  • mol

\tt mol=M\times V=0.237\times 0.4539=0.108

  • mass

MW Ca(C₂H₃OO)₂ : 158,17 g/mol

\tt mass=mol\times MW\\\\mass=0.108\times 158.17=17.082~g

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What is the period number of krypton
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The period number of krypton is 4

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