What happens to the volume of a gas when the number of moles is doubled (all else held constant)?
At a constant volume the pressure increase.
How many moles of Na2S2O3 react with one mole of KClO3 used in the standardization?
Standardization of sodium thiosulfate uses potassium iodate with excess potassium iodide and acidified. Iodine is liberated and that is titrated with sodium thiosulfate.
KIO3 + 5KI + 3H2SO4 -----> 3K2SO4 + 3H2O + 3 I2
I2 + 2Na2S2O3 -------> 2NaI + Na2S4O6
So 1 mole of KIO3 produces 3 moles of Iodine. 1 moles of iodine reacts with 2 moles of thiosulfate. So 6 moles of sodium thiosulfate react with 1 mole of potassium iodate KIO3.
What is molecular mass of Camphor?
The molecular mass of camphor, which has the chemical formula C10H16O, is approximately 152.23 g/mol. This value is calculated by summing the atomic masses of all the atoms in the molecular formula. Camphor is a bicyclic monoterpene and is commonly used in various applications, including medicinal and aromatic uses.
No, potassium (K) and chlorine (Cl) are not molecular. Potassium is a metallic element that exists as individual atoms, while chlorine is a nonmetal that typically exists as diatomic molecules (Cl₂) in its elemental form. When potassium and chlorine react, they form the ionic compound potassium chloride (KCl), which consists of potassium ions (K⁺) and chloride ions (Cl⁻) rather than discrete molecular units.
How much energy will be received when 3.2 moles of light with a wavelength of 650nm is absorbed?
To calculate the energy absorbed by 3.2 moles of photons with a wavelength of 650 nm, we first need to determine the energy of a single photon using the formula E = hc/λ, where h is Planck's constant (6.626 x 10^-34 J·s), c is the speed of light (3.00 x 10^8 m/s), and λ is the wavelength in meters (650 nm = 6.50 x 10^-7 m). This gives the energy per photon as approximately 3.1 x 10^-19 J. Then, for 3.2 moles of photons (which is 3.2 x 6.022 x 10^23 photons), the total energy is roughly 6.0 x 10^5 J.
What is the molecular mass of alkanes?
The molecular mass of alkanes varies depending on the number of carbon atoms in the chain. Alkanes have the general formula ( C_nH_{2n+2} ), where ( n ) is the number of carbon atoms. For example, methane (1 carbon) has a molecular mass of about 16 g/mol, while octane (8 carbons) has a molecular mass of approximately 114 g/mol. As the number of carbon atoms increases, the molecular mass of the alkane increases accordingly.
How many moles of oxygen gas are there in 180 L of oxygen at STP?
If the density of oxygen atSTP is 1,429 g/L the mass of 180 L is 257,22 g.
If the mole of oxygen (O2) is 15,999 g the number of moles is 16,077.
How many moles of silver are produced when 50g of silver (l) oxide decomposes?
The reaction is:
2 Ag2O-------------4 Ag + O2
The answer is o,43 mole silver.
How many atoms in seventeen moles of hydrogen?
Seventeen moles of hydrogen correspond to 204,75.10e23 atoms.
How many moles of iron correspond to 9.003 x 1023 atoms of iron?
9,003 x 1023 atoms of iron correspond to 1,495 moles.
What is the molecular mass of Klonopin?
Klonopin is a drug derived from Clonazepam, an anti-convulsant that is used to prevent seizures, such as epilepsy. The molecular weight is 315.7112. The molecular formula is C15H10ClN3O3.
What is the correct heat of reaction for the composition of two moles of water?
This enthalpy of reaction is 560 joules, for liquid water at 25 oC.
How many atoms are contained in 5.26 moles of oxygen?
5,26 moles of oxygen contain 31,676.10e23 atoms.
What volume is needed to store 0.80 moles of helium gas at 204.6 KP and 300 k?
Use the equation PV=nRT. You need 9.75 l containerfor store.
What is the mass of 3.28 moles of dinitrogen tetroxide?
The mass of 3,28 moles of dinitrogen tetroxide is 301,8 g.
How many moles of phosphorus are needed to form 8.6 mol p2o5?
Molar mass of P2O5 is 142gmol-1. You need 17.2 moles of p.
What is the total number of atoms in 3.5 moles of calcium?
The total number of atoms in 3.5 moles of calcium is 21,0774929995.10e23.