What is the molar mass of hydrogen How many moles is 1ml of hydrogen

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2g mol;

The molar mass of oxygen is 32g mol;

Molar mass is measured in kilograms per mole (kg mol), and for historical reasons, g mol is generally used as a unit. is numerically equal to the atomic or molecular mass of the substance. For a compound, its molar mass is fixed.

Whereas, the mass of a substance varies with the quantity of the substance.

It varies from one to the next.

The International Bureau of Weights and Measures defines 1 mole as having a relative atomic mass in the element carbon-12 (carbon.

is 12 atoms) contains the same number of atoms as the system of elementary particles, the amount of which is 1 mole. So the mass of 1 mole of pure carbon-12 is exactly 12 grams.

Hydrogen chemistry.

Hydrogen is stable at room temperature, and can react with many substances under the condition of ignition or heating.

Flammability (can be in oxygen or chlorine.

Medium combustion): 2H + O = Ignition = 2H O (chemical reaction.

Ignition of impure hydrogen gas to occur**, must be pure before ignition of hydrogen, similar, deuterium (heavy hydrogen.

Ignition in oxygen can produce heavy water (d o)).

Reductiveness. make certain metal oxides.

revert).

Hydrogen is flammable and explosive, and it is easy to occur, so pure hydrogen is dangerous.

If there is a sharp popping sound during combustion, it means that the hydrogen is not pure; It is very easy to happen**, so it is necessary to pay enough attention to this.

P is the pressure, V is the volume of the gas, N is the amount of the substance, T is the absolute temperature, and R is the gas constant. The r-value is the same for all gases. ）

Therefore, it is concluded that the volume of the gas is related to the pressure and temperature.

If under the standard condition, by n=v vm (vm is the molar volume, vm=n=m m(m is the molar mass, the molar mass of hydrogen is 2g mol) v = so the volume of 1 gram of hydrogen is.

The number of moles of hydrogen with a volume of 1 ml is: liters of moles) = moles.

The molar mass of hydrogen is 2g mol;

The molar mass of oxygen is 32g mol;

Molar mass is measured in kilograms per mole (kg mol), and for historical reasons, g mol is generally used as a unit. is numerically equal to the atomic mass or fractional volt mass of the substance. For a compound, the molar mass of a compound is fixed.

The mass of a substance changes with the amount of matter.

The International Bureau of Weights and Measures defines 1 mole as a system with the same number of atoms as 12 grams of carbon-12 (an atom with a relative atomic mass of 12 in the carbon element), with a mass of 1 mole of matter. So the mass of 1 mole of pure carbon-12 is exactly 12 grams.

The mass possessed by a substance per unit of substance is called molar mass and is denoted by the symbol m. Molar mass is measured in kilograms per mole (kg mol). Hydrogen is a highly flammable, colorless, transparent, odorless, odorless and insoluble gas in water.

The molar mass of hydrogen is 2g mol;

Hydrogen is often said to be stable at temperature, and can react with many substances under ignition or heating conditions.

Flammability (can be burned in oxygen or chlorine): 2H2 + O2 = ignition = 2H2O (chemical reaction).

Ignition of impure hydrogen gas can occur**, it must be verified before igniting hydrogen, similarly, deuterium (heavy hydrogen) can be ignited in oxygen to produce heavy water (D2O).

H2 + Cl2 = ignition = 2HCl (chemical reaction) In this reaction, the combustion flame is pale and white under light conditions**.

H2+F2=2HF (Hydrogen and fluorine are mixed to form hydrogen fluoride gas immediately, even under dark conditions).

Reducibility (e.g. reducing certain metal oxides).

H2 + CuoCu + H2O (displacement reaction).

3H2 + Fe2O3 = High temperature = 2Fe + 3H2O (displacement reaction).

3H2 + WO3W + 3H2O (displacement reaction).

Hydrogen can also undergo addition reactions with double or triple bonds.

The mass of 4 moles of hydrogen Luwu is 8 grams.

The molar stupid bend mass of H2 is 2g mol and the mass of 4molH2 is:

m=nm=4mol×2g/mol=8g。Morning or.

The molar mass of hydrogen is 2g mol

Answer: The mass of molar hydrogen erection is.

n = and na takes the 23rd power of the cautious head.

n=nxna= to the 23rd power = to the 23rd power of the book.

The molar mass is numerically equal to its relative molecular weight.

The molar mass of hydrogen is:2

The molar mass of g mol oxygen is: 32

g/mol

According to the Kraberon equation:

PV=NRT, where P is the pressure, V is the volume of the gas, N is the amount of the substance, T is the absolute temperature, and R is the gas constant. The r-value is the same for all gases. ）

Therefore, it is concluded that the volume of the gas is related to the pressure and temperature.

In the standard case, it is determined by n=v vm (vm is the molar volume, vm=

n=m m (m is the molar mass, hydrogen is 2g mol) v===

Hence the volume of 1 gram of hydrogen is.