Answer:
85.384 atm or 64608.13086 mmHg
Explanation:
PV= NRT
P= NRT/V
n= mols
R= gas constant (i used .0821 for atm)
T= Temp in Kelvins (Celsius degrees + 273)
V= in L
(65molsx480kx.0821)/30L
Answer:
Table salt (the iodine isn't important) consists of much smaller particles than rock salt and therefore has a much higher ratio of surface area to mass. Since chemical reactions occur at surfaces,the smaller table salt particles will dissolve far more quickly than the larger rock salt.
Explanation:
Answer:
The temperature is 1,532.52 °K= 1,252.37 °C
Explanation:
An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.
The equation known as the ideal gas equation explains the relationship between the four variables P (Pressure), V (Volume), T (Temperature) and n (Amount of substance) and where R is the molar constant of the gases as follows :
P * V = n * R * T
In this case:
- P= 1920 mmHg
- V= 22,400 mL= 22.4 L (Being 1 L=1,000 mL)
- n= 0.45 moles
- R= 62.36367
Replacing:
1920 mmHg* 22.4 L= 0.45 moles* 62.36367 *T
Solving:
T=1,532.52 °K= 1,252.37 °C (Being 0°C=273.15°K)
<em><u>The temperature is 1,532.52 °K= 1,252.37 °C</u></em>
Answer:
“...very dense fireball *billions* of years ago”.
“... is often called the *Big Bang*”.
“... is getting bigger or *expanding*”.
“... galaxies are moving away the *quickest*”.
“... gas clouds or *nebula*”.
“... mainly the element *hydrogen*”.
“Red *giants* are stars...”.
“... have a mass *less* than our *Sun*”.
“Hydrogen is the *fuel* of all stars”.
“... combine producing *helium*, releasing lots of *energy* in the process”.
“... only form when a star explodes as a *supernova*”.
“*White* dwarfs are stars...”.
“The Sun was the *smaller* of the two stars...”
“... form a white dwarf or a *neutron* star”.
“... have found new *homes* around other stars”.
Explanation:
Filling in blanks is a series of reading the context around the blank and maybe a little research to double check. I picked these answers because they sounded right and fit the context and also did some research to double check some blanks (eg. Neutron). Sometimes, it’s even trial and error. Nevertheless, keep trying!
<u>Answer: </u>The chemical formula for Palladium(IV) sulfate is
<u>Explanation:</u>
Palladium is the 46th element of the periodic table which has an oxidation state of +4 (because it is a metal and will form positive ion) and sulfate is the polyatomic ion having a charge of -2 with formula
So, to write the formula of the compound, we do criss cross method in which oxidation state of each element or ion is given to the other combining atom which results into the formation of a neutral compound.
The chemical formula of the compound is
The image is given below.