The volume of a gas at 155.0 kPa changes from 22.0 L to 10.0 L. What
is the new pressure if the temperature remains constant?

V1P1=V2P2

155(22L)=P(10L0

P=341kPg

Explanation:

The following format is copied directly from your notes for how to solve these!!!

1) Analyze problem statement to find knowns and unknowns for each gas variable

V1 = 22.0 L P1 = 155.0 kPa T1 = T2 n = constant (same sample of gas)

V2= 10.0 L P2 = ? kPa T2 = T1 temperature is constant

2) Decide which of the gas laws to use and write its formula.

Only P and V are given, so Boyle's law is used P1V1 = P2V2

3) Change any temperature values to Kelvin (if T is needed) not needed

4) Plug in the knowns - INCLUDING UNITS!!

P1V1 = P2V2

(155.0 kPa) (22.0 L) = P2 (10.0 L)

P2 = (155.0 kPa)(22.0 L) = 341 kPa

(10.0 L)The following format is copied directly from your notes for how to solve these!!!

1) Analyze problem statement to find knowns and unknowns for each gas variable

V1 = 22.0 L P1 = 155.0 kPa T1 = T2 n = constant (same sample of gas)

V2= 10.0 L P2 = ? kPa T2 = T1 temperature is constant

2) Decide which of the gas laws to use and write its formula.

Only P and V are given, so Boyle's law is used P1V1 = P2V2

3) Change any temperature values to Kelvin (if T is needed) not needed

4) Plug in the knowns - INCLUDING UNITS!!

P1V1 = P2V2

(155.0 kPa) (22.0 L) = P2 (10.0 L)

P2 = (155.0 kPa)(22.0 L) = 341 kPa

(10.0 L)

yes it is balanced

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.