I dont know sorry but good luck i know u can past
Hi my dear friend,
How to find mass of hydrate?
Divide the mass of your anhydrous (heated) salt sample by the molar mass of the anhydrous compound to get the number of moles of compound present. In our example, 16 grams / 160 grams per mole = 0.1 moles. Divide the mass of water lost when you heated the salt by the molar mass of water, roughly 18 grams per mole.
~Thank you
Answer:
1,000 cubed cm
Explanation:
Multiply the numbers together:
20 × 10 × 5
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Have a great summer :)
Answer:
181 picometers is the radius of a gallium atom.
Explanation:
Primitive cubic cell is an arrangement in which constituent particles are present only at the corners of the cube.Also known as simple unit cell. In this arrangement number of total particles is equal to 1.
Gallium crystallizes in a primitive cubic unit cell.
Edge length of cubic unit cell = a = 362 pm
Let the radius be gallium atom be r
Two atoms of gallium touching each other = a =2r
362 pm = 2r
r = 181 pm
181 picometers is the radius of a gallium atom.
Since O almost always has a charge of -2, the oxygen atoms have an overall charge of -8 (-2*4)
Since K has a charge of +1, that brings the overall charge to -7 (-8+1)
Then, in order for the overall charge to be 0, Mn would have to have a change of +7 (-7+7=0)
Hope this helps