Question

1.  

Consider the reaction below. If the rate of reaction is first order with respect to A, what will happen to the rate if the concentration of A is decreased by half? What if it is doubled?

A + B → C + D

2.

Hydrogen bonding can occur in molecules where a hydrogen atom is bound directly to which other elements?

	a.	O, N, and F
	b.	O, N, and Fe
	c.	O, S, and Si
	d.	N, Be, and B

3.  

Calculate the new boiling point when 65.45 g of NaCl (58.44 g/mol) is dissolved in 0.75 kg of water. K_b = 0.51 °C*kg/mol

ΔT_b = K_b * m_solute * i

	a.	101.52 ºC
	b.	98.48 ºC
	c.	110.76 ºC
	d.	1.52 ºC

4.  

For the below reaction:

3 A + B ↔ 4 C + 3 D

if the rate of production of D is equal to 2 M/sec when [A] = 1 M, what is the rate of formation of D when [A] = 10 if the reaction is zero order with respect to the [A]?

	a.	20 M/sec
	b.	2 M/sec
	c.	400 M/sec
	d.	40 M/sec

5.

The term molality is indicated using the symbol _____ and means _____.

	a.	m, moles of solute/L of solvent
	b.	m, moles of solute/kg solvent
	c.	M, moles of solute/L of solution
	d.	M, moles of solute/kg solvent