The proportion of carbon and oxygen is different in samples of the gas
Answer:
The answer to your question is:
a) 36 g of water
Explanation:
MW SO₂ = 32 + 32 = 64 g
MW Br = 80 g
MW H₂O = 18 g
MW HBr = 81 g
MW H₂SO₄ = 98
Balanced reaction:
SO₂ + 2Br + 2H₂O ⇒ 2HBr + H₂SO₄
64g 2(80) 2(18) 2(81) 98
64.1 159.9 161.9 98.1
Rule of three with Br and H2O
160 g ---------------- 36 g
160 ------------------- x
x = 160(36)/160 = 36 g oh water
The mass of an ink pen on a triple beam balance is about 17 grams
Answer:
A SOLUTION THAT REGULATES pH BECAUSE IT IS SUCH A STRONG ACID OR BASE
Explanation:
A buffer solution is an aqueous solution consisting of a weak acid and its conjugate base. It is an aqueous solution used to keep the pH of solution at a nearly constant value in various chemical processes. It resists change in pH when either a strong acid or a strong base is added. So it is very essential in various chemical applications and even in the human body as the blood pH is kept in nearly constant value by the bicarbonate buffer system in conjunction with the kidneys. The buffer solution is able to keep this nearly constant range of values because of the equilibrium between the weak acid and its conjugate base. So therefore, the incorrect statement in the options is that buffer solution is a solution that regulates pH because it is such a strong acid or base. The other options are correct.