The correct answer is copper.
hope that helps :))
Answer:
option d= 2
pH of gastric juice in stomach is vary from 1.5 - 3.5. So it could be 2.
Explanation:
Gastric juice present in the stomach is acidic in nature. It is composed of mainly sodium chloride, hydrochloric acid and potassium chloride. It is produce by the cells present in stomach lining. It activate the digestive enzyme and play important role in the digestion of protein . These enzymes break the chain of amino acids. Its acidic pH is not harmful for the stomach because lining cells of stomach also produce mucus that act as a barrier.
Chemical composition of gastric juice and their functions:
The gastric juice is a mixture of several chemicals including:
water:
water can not effect the stomach pH. it provide liquidity to mix the food, acids and enzymes. some enzymes also require water to perform the function.
Mucous:
It is produce in stomach. mouth and esophagus. It passes the food through gastrointestinal track in a protected way and also provide the protection to stomach from acid.
Hydrochloric Acid:
HCl is secreted by parietal cells of stomach. it kills the pathogens and bacteria in food and also convert the pepsinogen into pepsin. pepsin breaks the secondary and tertiary proteins and help in digestion.
Pepsinogen:
It also help to digest the protein.
Hormones and Electrolytes:
They help in food digestion and nutrient absorption.
Gastric Lipase:
t help to breake the fats of short and medium chain.
Amylase:
It is found in saliva and break down the carbohydrates.
The results should be very similar if done correctly. There could always be room for error and they can differ. But if they differ too much, something is most likely wrong. :)
Answer:
36.08%
Explanation:
We are given the overall formula of the compound as: CuSO4•5H2O
Now, atomic mass of the elements are;
Cu = 63.55 g/mol
S = 32.07 g/mol
O = 16 g/mol
H20 = 18.02 g/mol
Now, let's calculate the total mass of the compound:
(63.55 g/mol) + (32.07 g/mol) + 4(16 g/mol) + 5(18.02 g /mol) = 249.72 g/mol
From the above, water in the compound is 5(H20)
Thus, total water atomic mass = 5 × 18.02 = 90.1 g/mol
Thus, percentage of water = (atomic mass of water/total mass of compound) × 100%
Percentage of water = (90.1/249.72) × 100% = 36.08%
