The question of moles What is the number of moles

Sports cap out of print, Ram Games.

Bubble Ball transforms into a costume and plays with Bubble Ball.

Sunflower wreath, ultra-pull mail.

Ruby Cool Glasses, Out of Print, RK

Ram celebration hat, candy transformation out-of-print, anniversary.

Ram Little Horn is out of print, berry jungle.

Butterfly masks, star masks are out of print.

Ram's Magic Hat, Sixty-One.

Ram Helmet, Knight Base.

Ram Firefly Straw Hat, out of print Black Forest.

Ram masks, out-of-print Ram treatment room.

That's all I know.

Thank me. Criticize a lot.

There are two kinds of sports caps (Super Ram and Ram) out of print, Ram Games.

Bubble Ball transforms into a costume, and Super Pull plays with Bubble Ball (Super Pull).

Sunflower wreath, ultra-pull mail.

Ruby Cool Glasses, Out of Print, RK

Ram celebration hat, candy transformation out-of-print, anniversary.

Ram Little Horn is out of print, berry jungle.

Butterfly masks, star masks are out of print.

Ram Magic Cap, Sixty-One (Super Pull).

Ram Helmet, Knight Base.

Ram Firefly Straw Hat, out of print Black Forest.

Ram masks, out-of-print Ram treatment room.

Ram baby hats, cool summer parties. (Ultrapull).

There are so many! Generally, it is free to pick up.

It's also exclusive to Chaola.

Hehe......As long as you play Moore Manor regularly, you will get it

There will be a lot of tasks in each Moore Manor update, and if you work hard to complete it, you will likely get the decoration of Xindu Ram! It's really not good, you can look for a guide! This week, Du Ram clothing is in the summer cool party, go to the party and click on the big shovel at the bottom right, and start eating the cake, until the end of the meal (that is, the digging) The golden yellow is the latest Du Ram sports hat, (unfortunately, you can't get it without super pulling) cry for a few minutes first

Experience: Oh, I don't understand it, but what kind of thing is it? Earn money experience: go to Moore's restaurant and Sunshine Ranch every day to work (sometimes change locations, the restaurant is the same) This is a must-do thing every day, and, every week you can go to pick up police tasks (that is, stand guard) and stand in two days on 1000 Moore beans into the bag The fastest game to make money, I personally think it's a game for everyone to find faults, and the Sunshine Ranch is a farmhouse to play porters, it's very simple, and the experience is also given a lot Oh, just rely on this to upgrade quickly, and, The costumes and decorations updated in each issue make us all Moore Beans bleed profusely (distressed to death) So, oh suggest, save Moore Beans, and save a lot of beans by waiting until half-price day to show off your skills——— that's all, so much for the sake of Oh hitting so much, let's do it.

There used to be in the Black Forest, but now it's gone.

Mole (mole), abbreviated as mole, formerly known as gram molecule, gram atom, symbol mol, is the unit of quantity of matter, is one of the seven basic units of the International System of Units. Every 1 mole of any substance (microscopic substance, such as molecules, atoms, etc.) contains the Avogadro constant (about one particle. When using moles, elementary particles should be specified and may be atoms, molecules, ions and other microscopic particles, or specific combinations of these microscopic particles.

About one atom is 1 mole, just like people often say that a dozen refers to 12, and "mole" is just a special unit like "dozen". g) c(carbon-12) contains 1 mole of atoms.

1.Let's start with the definition: scientifically the collective containing a particle as a unit, called mole, it is a unit that represents the quantity of matter (the symbol is n), referred to as mole, the unit symbol is mo, the mass of any substance is in grams, numerically equal to the relative molecular mass of the atom.

For example, the formula of water is 18, and the mass of 1mol of water is 18g, containing water molecules. Usually the mass of 1 mol of a substance is called the molar mass of the substance (the symbol is m), and the unit of molar mass is grams, which is read as "gram per mol" (the symbol is "g mol"), for example, the molar mass of water is 18g mol, which is written as m(h2o)=18g mol.

2.About the calculation of moles: What is the relationship between the mass of mass (m), the quantity of matter (n) and the molar mass of matter (m)?

That is, there are: n = m m, m = n m, m = m n general formula: n (amount of matter) = n (number of particles) na (Avogadro constant = mass) m (molar mass) = v (volume of gas) vm In general, the calculation is also done with the above formulas to transform each other]]] As long as you are familiar with the above n = m m, m = n m, m = m n, in general, the problem can be solved, of course, n (the amount of matter) = n (the number of particles) na (Avogadro's constant = mass) m (molar mass) = v (volume of gas) vm is also important.

ps: It seems that it wasn't that difficult for me to go to junior high school at that time, as long as I understand the basic formula, but now it's hard to be swollen and purple!!

An oxygenate of metal R is heated under the condition of air isolation to completely decompose to form a mixture of oxide R R and Co and CO2, which is known: the relative density of the mixture to hydrogen is 18, and its volume is standard); The number of protons in the nucleus of metal R is 4 less than the number of neutrons, and the mass of R is measured to be half of the mass of the original oxygenate, and the chemical formula of the salt is calculated to be obtained.

Answer: R is Fe and the chemical formula is FeC2O4

Analysis: The relative density of the mixed gas to hydrogen is 18 - m flat = 2 * 18 = 36g mol

44 8 1[co2]

36 28 8 1[co]

n[co]=,n[co2]=

m[co+co2]=

The measured mass of RO is half that of the original oxynate - m[ro]--m[CO+CO2].

1 1xx=n[ro]=n[rczob]=

m[ro]=

m[r]=72-16=56g/mol

The number of protons in the nucleus of the metal R is 4 fewer than the number of neutrons

n[r]=(56-4)/2=26——r:ferczob--ro--co--co2

rczob: FeC2O4 [conserved].

1.Hydroxide ions have a unit of negative charge, and the amount of electrons contained = the amount of electrons of the oxygen atom + the amount of electrons of the hydrogen atom + 1 (negative charge) = 8 + 1 + 1 = 10.

Amount of proton matter = (

The amount of electron in matter = ((

Because there are 10 electrons in the hydroxide ion, 1mol hydroxide ion contains 10mol electron b

I agree with the answer of the translucent cup I think it's more accurate.

To add the first one: For example, 1mol of sodium chloride(s) contains 1mol of sodium ions and 1mol of chloride ions, not necessarily molecules.

Second: Actually, an equilibrium is considered: 2NO2==N2O4 is reversible, but you will find that if you take an extreme assumption, you will find that if 46g is all NO2, then it is 1mol, and if all is N2O4, it becomes, anyway, the number of molecules is different, you can assume that if you mix and take half, then the amount of its substance will be 1mol?

Wrong! Avogadro's law: Any gas of the same volume at the same temperature and pressure contains the same number of molecules.

Suitable for any gas, it can be a single gas or a mixture of gases.

I'm a junior in high school.