Chemistry Answers

Calculate the boiling point elevation of an aqueous solution containing 36 grams of sucrose (C12H22O11) (MW=342g/mol) in 250 grams of water. The boiling point elevation constant for water is 0.512 degree Celsius per mole.

At what temperature will 0.731 moles of neon gas occupy 10.30 L at 2.50 atm? Use the equation: MM= ρRTP

Determine the volume occupied by 4.26 g of CO2 gas at STP. Use the equation: V= nRTP

A 500.0 mL sample of nitrogen is warmed from 77.0 ˚C to 86.0 ˚C. Find its new volume if the pressure remains constant.

Under what pressure a gas must be compressed in order to fit into a 4.00 ft3 tank if it occupies 300.0 ft3 at standard pressure?

The rate of effusion of an unknown gas was measured to be 25.3 mL/min. Under similar conditions, a known gas with a density of 3.1 g/mL effuses at 19.5 mL/min. What is the density of the unknown gas?

Strategy: Let ρ1 be the density of the unknown gas.

Write the equilibrium constant expressions (Kc and Kp) for the following reactions:1. SO2Cl2(g) ⇌ SO2(g) + Cl2(g)

2. H2O(l) + CO2(g) ⇌ H2CO3(aq)

arrange the following compounds (H2O, H2S,Br2,NaCl) in creasing

if the O2 is reacting at the rate of 0.25 Ms-1,

calculate:

i. rate of NO2

Write the chemical reaction equation for Primary Aromatic Amine, Secondary Aromatic Amine and Tertiary Aromatic Amine.