The answer is chemical weathering The physical breakup of rocks without any changes in their chemical composition is chemical weathering.
Explanation:
Mass of an electron =9.1×10−28g
∴ mass of one mole
=9.1×10−28×6.02×1023
=54.78×10−4g
Answer:
Consequently, what happens when gas obtained by heating slaked lime and ammonium chloride is passed through copper sulphate solution? The HCl in the gas mixture will form hydrochloric and the H+ will react with some of the NH3(aq), forming NH4^+, and with some of the SO4^2-, forming HSO4^-.
Answer:
1. 3.02 liters
2. 302.2 liters
3. 2.83 grams
Explanation:
Question 1.
Let's convert the molarity in mass.
Molarity is mol/L, so if we convert the moles to mass, we are talking about a mass, in 1L of solution. (mol . molar mass)
0.5 mol . 110.98 g/m = 55.49 g
Now we can make a rule of three:
If 55.49 grams of chloride are in 1L of solution
then 167.5 g of chloride are in (167.5g . 1L) / 55.49 g = 3.02L
For question 2 and 3, we assume STP, where pressure is 1 atm and T° is 273K. - Standard conditions of temperature and pressure (STP)
Let's apply the Ideal gases law equation
P . V = n . R .T
1 atm . V = 13.5 moles . 0.082 l.atm / mol .K . 273K
V = (13.5 moles . 0.082 l.atm / mol .K . 273K) / 1 atm = 302.2 liters (question 2)
Question 3.
1 atm . 31.7 L = n . 0.082 l.atm / mol.K . 273K
(1 atm . 31.7 L ) / (0.082 l.atm / mol.K . 273K) = 1.41 moles → n
Let's convert moles to mass ( mol . molar mass)
1.41 mol . 2g/mol = 2.83 grams