Calculate the number of grams in 260 mL ( 1000mL = 1 L) of a 0.55 M solution of NaCl. (1 mol = 58 g)

8.29g NaCl are present

Explanation:

To solve this question we must, as first, find the moles of NaCl in 260mL of the solution. These moles can be converted to grams using its molar mass (NaCl = 58g/mol)

Moles NaCl:

260mL * (1L / 1000mL) = 0.260L * (0.55mol / L) = 0.143 moles NaCl

Mass NaCl:

0.143 moles NaCl * (58g / mol) = 8.29g NaCl are present

3 1/4 %

explanation:

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.