I think 02 83.92 pretty sure
Answer:
Mass = 14.72 g
Explanation:
Given data:
Volume of hydrogen = 6.58 L
Temperature of gas = 32°C (32+273 = 305 k)
Pressure of gas = 895 mmHg (895/760 = 1.2 atm)
Mass of sodium required = ?
Solution:
Chemical equation:
2HCl + 2Na → 2NaCl + H₂
Number of moles of hydrogen:
PV = nRT
1.2 atm × 6.58 L = n× 0.0821 atm.L/mol.K×305 K
7.9 atm.L = n× 25.0 atm.L/mol
n = 7.9 atm.L / 25.0 atm.L/mol
n = 0.32 mol
Now we will compare the moles of hydrogen with sodium.
H₂ : Na
1 : 2
0.32 : 2/1×0.32 = 0.64 mol
Mass of sodium:
Mass = number of moles × molar mass
Mass = 0.64 mol × 23 g/mol
Mass = 14.72 g
Yes a nucleus is located inside a cell.
Explanation:
prevent becoz crop rotation means using it by planting the crop according to nuetrients so ur soil is prevented
0.05 is the answer to your question
