Answer:
9.1g
Explanation:
Given parameters:
Mass of copper sulfate heptahydrate = 43.2g
Mass of water lost = 34.1g
Unknown:
Mass of copper sulfate = ?
Solution
The copper sulfate heptahydrate is made up of the copper sulfate and water of crystallization which makes it wet.
Mass of copper sulfate heptahydrate = mass of copper sulfate + mass of water
Mass of copper sulfate = mass of copper sulfate heptahydrate - mass of water
Mass of copper sulfate = 43.2g - 34.1g = 9.1g
The ratio of moles of AI(NO3)3 to moles Na2CO3 in the reaction is 2:3
In the reaction 2 moles of AI(NO3)3 reacted with 3 moles Na2CO3 so the ratio of the moles is 2 is to 3 represented as 2:3
hope it helps
Explanation:
Mass of one atom of water = Mass of 1 mole / Avogadro's number
Mass of one atom of water = 18g/mol / 6.022×10²³molecules
Mass of one atom of water = 2.989 × 10^-23 g
Mass of glucose = 180(one molecule)
Mass of 100 molecules of glucose = 180×100 =18000
-Photons are absorbed by hot gas atoms
-Energy is transferred through large-scale movement of material
-Energy is released into the photosphere
Your answer would be, The lower the group number, the lower the period numbers, therefore, metalloids are found in a diagonal moving down from left to right.
Hope that helps!!!
