_____NaOH + _____H2 SO4 _____ Na2SO4 + _____ H2O ,
To balance this equation,
Step 1:
Balance the number of sodium on both side:
by multiplying the NaOH by 2 that is:
2NaOH+H2SO4-------->Na2SO4+H2O
Step2:
As NOW the number of oxygen atom and hydrogen atom are not equal on both sides. So we multiply this H2O by 2 that is:
2NaOH+H2SO4-------->Na2SO4+2H2O
Now the no of all atoms on product side is equal to no of all atoms in the reactant side.
so the coefficient is 2 NaOH+1 H2SO4-------->1 Na2SO4+2 H2O.
Answer: the answer is animalia and plantae
Explanation: I just took the test.
I’m sorry but I just wanted to say to my friends that you are not doing anything for you and you have a really nice night
Answer:
1.95*10²² molecules are in 5.50 grams of AgNO₃
Explanation:
Being the molar mass of the elements:
- Ag: 107.87 g/mole
- N: 14 g/mole
- O: 16 g/mole
then the molar mass of the compound is:
AgNO₃: 107.87 g/mole + 14 g/mole + 3*16 g/mole= 169.87 g/mole
Then you can apply the following rule of three: if 169.87 grams of the compound are present in 1 mole, 5.50 grams will be present in how many moles?
moles= 0.0324
Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance.
You can apply the following rule of three: if by definition of Avogadro's Number 1 mole of the substance contains 6.023 * 10²³ molecules, 0.0324 moles how many molecules will it have?
molecules=1.95*10²²
<u><em>1.95*10²² molecules are in 5.50 grams of AgNO₃</em></u>