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3 years ago

According to the law of conservation of mass, if five atoms of hydrogen are used

Chemistry

1 answer:

Zanzabum3 years ago

5 0

Answer:

the law of conservation says the product side will have 5 hydrogen, unless a coefficient is added.

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Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unw

Sauron [17]

Answer:

0.1472 mol/L is the concentration of the barium hydroxide solution.

Explanation:

$2KHC_8H_4O_4+Ba(OH)_2\rightarrow Ba(KC_8H_4O_4)_2+2H_2O$

Mass of potassium hydrogen phthalate = 2.050 g

Molar mass of potassium hydrogen phthalate = $\frac{2.050 g}{204.2 g/mol}=0.01004 mol$

According to reaction , 2 moles of potassium hydrogen phthalate reacts with 1 mole of barium hydroxide, then 0.01004 moles of potassium hydrogen phthalate will :

$\frac{1}{2}\times 0.01004 mol=0.005020 mol$ of barium hydroxide

Moles of barium hydroxide = 0.005020 mol

Volume of the barium hydroxide solution = 34.10 mL = 0.03410 L

1 mL = 0.001 L

$Molarity=\frac{Moles}{Volume(L)}$

Molarity of the barium hydroxiude silution :

$=\frac{0.005020 mol}{0.03410 L}=0.1472 mol/L$

0.1472 mol/L is the concentration of the barium hydroxide solution.

4 0

3 years ago

Carbonate oxidation number

Svetllana [295]

Answer:

-2

Explanation:

carbonate oxifation number is -2

6 0

3 years ago

In a generator, the current changes direction each time the ____ passes the _____ of a magnet.

lubasha [3.4K]

Answer:1.armature 2.pole

Explanation:

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7 0

3 years ago

Read 2 more answers

Derek needs a tool that delivers 25.00 mL of a sodium hydroxide solution. What tool would be best for him to use?

3241004551 [841]

He may use a pipette with a volume greater than 25 ml to transfer the solution.

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4 years ago

What identifies an ion

bezimeni [28]

Answer:

Identifying whether or not an element is an ion is a very simple process. Identify the charge of the element. ... The number of electrons is equal to the atomic number minus the charge of the atom. Refer to an element with either a positive or negative charge as an ion.

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3 years ago