I am doing a gizmo and need help badly, this is what is on the worksheet. Can someone please help me, I am struggling a lot. Thank you.

6. Practice: Solve each of the following problems using dimensional analysis (or another method). Show your work. (Use a periodic table to look up the necessary atomic masses.)
A. 75 g KMnO4 = molecules KMnO4
B. 7.23 × 10 24Al atoms = grams Al
C. 9.23 × 10 23Au atoms = moles Au
D. 125 g H3PO4 = molecules H3PO4
E. 0.75 moles CO2 = total atoms

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

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answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole

football

explanation:

because it is