Question

What is the concentration (mol/L) of a solution formed when 7.15 g of washing soda,
Na,CO3.10H2O, is dissolved in water to form 250 mL of solution?
(Ari H = 1; C = 12; O = 16; Na = 23)

0.100 mol/L
0.025 mol/L
0.050 mol/L
0.200 mol/L
0.270 mol/L

Answer 1

Explanation:

Hey mate

Apply the formula directly

M= no. Of moles of solute divided by vol of sol

=7.15/260×250/1000

=0.1

Mark as brainlest

Answer 2

Answer:

may be 0.200 mol/L