Answer:
The answer to your question is: 1.28 x 10 ¹⁵ g of Fe₂(SO₄)₃
Explanation:
Single replacement reaction:
2Fe + 3H₂SO₄ → Fe₂(SO₄)₃ + 3H₂
M Fe = 55.8 g/mol
M H₂SO₄ = 98.1 g/mol
M Fe₂(SO₄)₃ = 399.9 g/mol
M H₂ = 2.0 g/mol
Fe₂(SO₄)₃ = 3.21 x 10¹² mol
Fe₂(SO₄)₃ = ? g
1 mol of Fe₂(SO₄)₃ ----------------- 399.9 g/mol of Fe₂(SO₄)₃
3.21 x 10¹² mol Fe₂(SO₄)₃ -------- x
x = (3.21 x 10¹² x 399.9 ) / 1
x = 1.28 x 10 ¹⁵ g of Fe₂(SO₄)₃
Explanation:
yeah, I learnt it last time and I heard that they can like somehow determine what the baby would be if the girl is pregnant. is it true? lol
The correct option is this: WHEN THE ENTHALPY CHANGE OF THE REACTION IS POSITIVE, THE REACTION IS ENDOTHERMIC.
All chemical reactions are divided into two classes, these are exothermic and endothermic reaction. An exothermic reaction is a type of reaction in which energy is lost to the environment, thus the enthalpy change of the reaction is negative. An endothermic reaction is a type of reaction in which energy is absorbed from the environment, thus the enthaply change of the reaction is positive.
Answer:
The mass of NaCl is 0.029 grams
Explanation:
Step 1: Data given
Molecular weight of NaCl = 58.44 g/mol
Volume of solution = 100 mL = 0.100 L
Molarity = 0.0050 M
Step 2: Calculate moles NaCl
Moles NaCl = molarity * volume
Moles NaCl = 0.0050 M * 0.100 L
Moles NaCl = 0.00050 moles
Step 3: Calculate mass NaCl
Mass NaCl = moles NaCl * molar mass NaCl
Mass NaCl = 0.00050 moles * 58.44 g/mol
Mass NaCl = 0.029 grams
The mass of NaCl is 0.029 grams
It is the first choice(A.):
Stomata take in water,sunlight,and carbon dioxide and release oxygen
Hope I could help you