Answer is: <span>50 g of nitrogen has a volume of 40 liters at stp.
m(N</span>₂) = 50 g.
n(N₂) = m(N₂) ÷ M(N₂).
n(N₂) = 50 g ÷ 28 g/mol.
n(N₂) = 1,785 mol.
V(N₂) = n(N₂) · Vm.
V(N₂) = 1,785 mol · 22,4 L/mol.
V = 40 L.
Vm - molare volume on STP.
Answer: Thus molarity of
is 1.35 M
Explanation:
To calculate the volume of acid, we use the equation given by neutralization reaction:
![n_1M_1V_1=n_2M_2V_2](https://tex.z-dn.net/?f=n_1M_1V_1%3Dn_2M_2V_2)
where,
are the n-factor, molarity and volume of acid which is ![HNO_3](https://tex.z-dn.net/?f=HNO_3)
are the n-factor, molarity and volume of base which is KOH.
We are given:
![n_1=1\\M_1=?M\\V_1=10.0mL\\n_2=1\\M_2=1.0M\\V_2=13.5mL](https://tex.z-dn.net/?f=n_1%3D1%5C%5CM_1%3D%3FM%5C%5CV_1%3D10.0mL%5C%5Cn_2%3D1%5C%5CM_2%3D1.0M%5C%5CV_2%3D13.5mL)
Putting values in above equation, we get:
![1\times M_1\times 10.0=1\times 1.0\times 13.5\\\\M_1=1.35M](https://tex.z-dn.net/?f=1%5Ctimes%20M_1%5Ctimes%2010.0%3D1%5Ctimes%201.0%5Ctimes%2013.5%5C%5C%5C%5CM_1%3D1.35M)
Thus molarity of
is 1.35 M
Answer: The positive and negative charges of the water molecule pull on the negative and positive ends of the ionic molecule to break them apart.
Explanation:
Ionic compounds dissolve in polar solvents such as water as like dissolves like. Ionic compounds are made up of ions which remain attracted by coloumbic forces.
Thus to separate the ions, the positive and negative charges of polar solvent pulls the opposite charges of the ionic compounds and thus break them apart. Thus the ionic compounds dissolve in water.
A mole is most similar to Avogadro's number -
6.02 x 10^23