3 years ago

How are the elements organized on the periodic table

Chemistry

2 answers:

MAVERICK [17]3 years ago

6 0

Answer:

According to the atomic number or number of proton

Explanation:

Inessa [10]3 years ago

5 0

Answer: By atomic number

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Calculate the pH of a solution with an H+ ion concentration of 9.36 x 10-3 M ?

mel-nik [20]

Answer:

The answer is 2.03

Explanation:

The pH of a solution can be found by using the formula

$pH = - log [ {H}^{+} ]$

where H+ is the Hydrogen ion concentration

From the question we have

$pH = - log(9.36 \times {10}^{ - 3} ) \\ = 2.02872415...$

We have the final answer as

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3 years ago

What is the molarity of H3PO4?

masya89 [10]

The answer is 14.8 hoped this helped

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3 years ago

How many moles of magnesium, Mg, are there in 4.75 grams of magnesium?

Nina [5.8K]

Molar mass Mg = 24.3 g/mol

1 mole mg ------------ 24.3 g
?? moles mg --------- 4.75 g

4.75 x 1 / 24.3 => 0.195 moles of Mg

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3 years ago

What was the result of heating the mixture? All BUT ONE choice is correct.

snow_tiger [21]

Answer:

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3 years ago

Equation Given : Al^(3+) + Na3PO4 ==> 3Na^+ + AlPO4

Helga [31]

1 mols of Aluminium ion forms 1 mol aluminium phosphate

Molar mass of AlPO_4

27+31+16(4)
58+48
106u

Moles of AlPO_4

61µg/106
0.000061/106
5.75×10^{-7}
57.5µmol

Moles of Al3+=57.5µmol

3 0

2 years ago