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K2CrO4
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What is calcium's normal phase temperature?
The phase of most elements, at standard temperature and pressure, is solid. The exceptions are as follows: Gas: Hydrogen, Helium, Nitrogen, Oxygen, Fluorine, Neon, Chlorine, Argon, Krypton, Xenon, Radon. Liquid: Bromine, Mercury. Standard temperature and pressure (shortened to s.t.p.) are 293K (20oC) and 1atm (normal atmospheric pressure).
What is the range of temperature on kelvin scale?
Kelvin is a measurement of absolute termperatures and therefore it starts at Absolute Zero the temperature at which even electrons neutrons and all other action no longer has enough energy to occur.
How many moles of oxygen in 30L of oxygen gas?
At standard temperature and pressure (STP), one mole of a gas is 22.4L. So, in order to determine how many moles of O2 are in 30L, you do the following: multiply 30L O2 x 1mol O2/22.4L O2, which equals 1.34mol O2.
How many grams of calcium carbonate are needed to produce 49.0 L of carbon dioxide at STP?
n=(1atm)(49L)/(0.0821)(273.15)=2.19 moles2.19 moles x 44g of CO2 =96.36g of CO22.19 moles x 100g of CaCO3= 219g of CaCO3
What happens when oxygen 2 and carbon is mixed?
Carbon dioxide is a very stable element and only breaks when in solution or when it has enough energy added to break formation. If oxygen and carbon dioxide mix at normal pressure (~1atm) nothing happens, the carbon dioxide will sit underneath the oxygen because it is much heavier then oxygen. If oxygen and carbon dioxide are in a very high pressure vessel they will form a solid at low temperatures, just like any other gas.
Chemical compound that is a yellow solid at room temperature and 1atm?
K2CrO4
Is lead a solid or liquid at 100 degrees?
The melting temperature of a substance is dependent upon the pressure and specific volume. The melting temperature of liquid at standard pressure of 1atm (~100kPa) is 0 degrees Celsius.
What are the controls in a lab?
Temperature: usually room temperature (25 degrees Celsius) Atmospheric pressure: usually 1atm
What is calcium's normal phase temperature?
The phase of most elements, at standard temperature and pressure, is solid. The exceptions are as follows: Gas: Hydrogen, Helium, Nitrogen, Oxygen, Fluorine, Neon, Chlorine, Argon, Krypton, Xenon, Radon. Liquid: Bromine, Mercury. Standard temperature and pressure (shortened to s.t.p.) are 293K (20oC) and 1atm (normal atmospheric pressure).
What happens when dry ice is warmed at 1atm of pressure?
sublimation (sublimation is the process of a solid turning into a gas)
Is ethyl alcohol a solid liquid or gas at 1atm?
The state of matter of a substance depends on both temperate and pressure. At standard temperature, ethyl alcohol is a liquid at 1 atm. Its boiling point 78.37 degrees Celsius, and its melting point is -114 degrees Celsius.
The temperature of an ideal gas in a 5.00L container at 1atm pressure and 25degree is lowered to 220k calculate the new pressure of the gas?
0.738
What are the melting and boiling points of different substances?
At 1atm, the melting point of H2O(water) is 0 degrees celcius and the boiling point is 100 degrees celcius. Carbon dioxide's boiling point is at -25 degrees and so its meting point. Since it crystallises and sublimates, it has no liquid form. The boiling- and melting points of elements/compounds depend on the amount of pressure exerted on the element/compound. Generally, the higher the pressure, the higher the boiling and melting points. All except for water, gallium and bismuth. These substances' melting point decreases as pressure increases.
What is volume of carbon dioxide when 2g of anhyderous sodium carbonate is heated strongly at 273K and 1atm?
Sodium carbonate does not decompose at room temperature...
How much heat is required to raise the temperature of the oxygen from 15 degree to 25 degree in a 1L container. starting from 1atm?
About 14 calories or 60 Jules
What is the state of carbon dioxide at 25 degrees Celsius?
25 deg. Celsius is about "room temperature," and assuming normal pressure (1atm) carbon dioxide is a gas.
What volume would be occupied by 0.50 moles of gas at a temperature of 35 degrees C and a pressure of 1ATM?
pV=ntR V= (.5)(35+273)(8.314)/1 =approx. 1280.4
