Answer:
Na < K < S < Be
Explanation:
Let's work with NA and molar mass of each.
- 1.5 mol of K → should be converted to atoms ( mol . NA)
1.5 mol . 6.02×10²³ = 9.03×10²³ atoms of K
- 64 g of S → should be converted to mol (mass / molar mass). Then, into atoms. (mol . NA)
64 g / 32.06 g/m = 1.99 mol
1.99 m . 6.02×10²³ = 1.20×10²⁴ atoms of S
- 20 g of Be → should be converted to mol (mass / molar mass). Then, into atoms. (mol . NA)
20 g / 9.01 g/m = 2.22 moles
2.22 m . 6.02×10²³ = 1.33×10²⁴ atoms of Be
- 25 g of Na → should be converted to mol (mass / molar mass). Then, into atoms. (mol . NA)
25 g / 23 g/m = 1.08 moles
1.08 m . 6.02×10²³ = 6.54×10²³ atoms of Na
Answer:
This answer I think it is Al,F
Oh no se, aparte que ni inglés se lo siento 0102938
Hey There!:
Molar mass O2 => 32.0 g/mol
Molar mass Cl2 => 71.0 g/mol
effusion rate α 1 / (√ molar mass )
E Cl2 / E O2 = √ molar mass O2 / √ molar mass Cl2
E Cl2 / E O2 = ( √ 32.0 ) / ( √ 71.0 )
=> 0.671
Hope that helps!
At 40 degrees Celsius, approximately 78 grams of potassium bromide can be dissolved.