Learn more about our help with Assignments: Physical Chemistry
Search & Filtering
Physical Chemistry
What is the concentration of the hydronium ion for a solution whose pOH is 4?
Physical Chemistry
At a constant temperature,a gas is at a pressure of 1080 mm Hg. If the volume is decreased by 40%, find the new pressure of the gas.
Physical Chemistry
you have been asked to give advice relating to the provision of fire fighting equipment to the owner of a small engineering factory manufacturing motor car components. there are a wide range of industrial risk on site but the building is NOT protected by an automatic fire sprinkler system.
1. list some of the various work areas you would expect to find in the building
2. list fire risk that are likely to be found in each of the areas identified
3. state the most appropriate extinguishing agent for each risk you have identified in 2 above
4. if you had the choice of only TWO extinguishing agents, which would be capable of dealing with all the risks identified
1. list some of the various work areas you would expect to find in the building
2. list fire risk that are likely to be found in each of the areas identified
3. state the most appropriate extinguishing agent for each risk you have identified in 2 above
4. if you had the choice of only TWO extinguishing agents, which would be capable of dealing with all the risks identified
Physical Chemistry
water spray are often installed to protect special risks at industrial premises. explain the three main methods by which water spray extinguishes a fire.
outline the major application systems which are used to apply the spray.
what additional extinguishing factors would be present when a high velocity spray was applied to a fire
outline the major application systems which are used to apply the spray.
what additional extinguishing factors would be present when a high velocity spray was applied to a fire
Physical Chemistry
freezing point of pure solvents higher than freezing point solution in which non-volatile solute dissolve justify
Physical Chemistry
What volume would 48 g of methane (CH4) gas occupy at STP?
a) 11.2 L
b) 22.4 L
c) 44.8 L
d) 67.2 L
a) 11.2 L
b) 22.4 L
c) 44.8 L
d) 67.2 L
Physical Chemistry
If 50 mL of 0.50 N HCl is reacted with 50 mL of 0.25 N NaOH, then what will be the concentration of the HCl after the reaction is complete?
a) 0.9 N
b) 0.6 N
c) 0.3 N
d) 0.13 N
a) 0.9 N
b) 0.6 N
c) 0.3 N
d) 0.13 N
Physical Chemistry
If the pH of a solution changes from 5.18 to 2.18 what is the effect on the hydronium ion concentration?
a) increases by a factor of 1000
b) increases three fold
c) decreases by a factor of 1000
d) decreases three fold
a) increases by a factor of 1000
b) increases three fold
c) decreases by a factor of 1000
d) decreases three fold
Physical Chemistry
What mass of Nitrogen gas (N2) would occupy 11.2 L at STP?
a) 7 g
b) 14 g
c) 28 g
d) 56 g
a) 7 g
b) 14 g
c) 28 g
d) 56 g
Physical Chemistry
2A + B ----> C+ D
If 6 moles of A are reacted with 4 moles of B, how many moles of C could form?
a) 2
b) 3
c) 4
d) 5
If 6 moles of A are reacted with 4 moles of B, how many moles of C could form?
a) 2
b) 3
c) 4
d) 5
" Assignmentexpert.com " is a name that MUST remember when you have a project in mathematics, even if that project is related to an advanced course!
#331389 on Nov 2022
#331389 on Nov 2022