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erik [133]
3 years ago
7

How many grams are in a 3.1E21 atom sample of vanadium

Chemistry
1 answer:
Karo-lina-s [1.5K]3 years ago
8 0
There are 50.9415 grams in vanadium


hope that helps :)
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List any two uses of Brass , Bronze , Sulphur , Iodine
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BRASS :It is easy to form into various shapes, a good conductor of heat, and generally resistant to corrosion from salt water. 1 pipes and 2 tubes, 3 screws, 4 cartridge casings for firearms.

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Sulphur :1 making car batteries, 2 fertilizer

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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
Tomtit [17]

Answer:

0.1082M of Barium Hydroxide

Explanation:

KHP reacts with Ba(OH)2 as follows:

2KHP + Ba(OH)2 → 2H2O + Ba²⁺ + 2K⁺ + 2P²⁻

<em>Where 2 moles of KHP reacts per mole of barium hydroxide</em>

<em />

To solve this question we must find the moles of KHP in 1.37g. With these moles and the reaction we can find the moles of Ba(OH)2 and its molarity using the volume of the solution (31.0mL = 0.0310L) as follows:

<em>Moles KHP -Molar mass: 204.22g/mol-</em>

1.37g * (1mol / 204.22g) = 0.006708 moles KHP

<em>Moles Ba(OH)2:</em>

0.006708 moles KHP * (1mol Ba(OH)2 / 2mol KHP) =

0.003354 moles Ba(OH)2

<em>Molarity:</em>

0.003354 moles Ba(OH)2 / 0.0310L =

<h3>0.1082M of Barium Hydroxide</h3>
4 0
3 years ago
1.Which is the lowest level of organization for the system in a human
elena55 [62]

Answer:

brain cell

Explanation:

hope this helps :)

5 0
2 years ago
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