60 points please help me! i will appreciate it!

Explanation:

From the reaction:

2 moles of Na produce 1 mole of H₂

Converting 3.10 g of Na into moles:

Moles = mass / molar mass

= 3.10 / 23

= 0.135 mol

From the reaction:

2 Na = 1 H₂

1 Na = 1/2 H₂

1 Na = 0.5 H₂

1 mol of Na = 0.5 mol of H₂

0.135 mol of Na = 0.5 × 0.135 mol of H₂

0.135 mol of Na = 0.067 mol of H₂

So, 0.135 mol of Na (3.10 g) produce 0.067 mol of H₂

Convert 0.067 mol of H₂ into L:

= mol × molar value

[molar value = 22.4 L/mol]

= 0.067 × 22.4

= 1.51 L

i think it is d. e because the next one is igneous.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.