Huck, I need help, and I don't get help, I'll Ducking do it again
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Answer:
B.) 2 HCl(aq) + CaCO₃(s) → CaCl₂(aq) + H₂O(l) + CO₂(g)
C.) 7.4 × 10² mL
D.) 2 HCl(aq) + Mg(OH)₂(aq) → MgCl₂(aq) + H₂O(l)
E.) 1.3 × 10³ mL
Explanation:
<em>The daily output of stomach acid (gastric juice) is 1000 to 2000 mL. Prior to a meal, stomach acid (HCl) typically has a pH of 1.49.</em>
We can calculate the concentration of H⁺ using the definition of pH.
pH = -log [H⁺]
[H⁺] = antilog -pH = antilog (-1.49) = 0.0324 M
Since HCl is a strong monoprotic acid, we can consider this to be the concentration of HCl as well.
<em>B.) One chewable tablet of the antacid Maalox contains 600 mg of CaCO₃. Enter the neutralization equation. Express your answer as a molecular equation including phases.</em>
The neutralization equation is:
2 HCl(aq) + CaCO₃(s) → CaCl₂(aq) + H₂O(l) + CO₂(g)
<em>C.) Given that one chewable tablet of the antacid Maalox contains 600 mg of CaCO₃, calculate the milliliters of stomach acid neutralized by two tablets of Maalox. Express the volume in milliliters to two significant figures.</em>
We can establish the following relations:
- Each tablet has 600 mg (0.600 g) of CaCO₃.
- The molar mass of CaCO₃ is 100.09 g/mol.
- The molar ratio of HCl to CaCO₃ is 2:1.
- The concentration of HCl is 0.0324 mol/L.
The mililiters of HCl that neutralize 2 tablets of Maalox are:
<em>D.) The antacid milk of magnesia contains 400 mg of Mg(OH)₂ per teaspoon. Enter the neutralization equation. Express your answer as a molecular equation including phases.</em>
The neutralization equation is:
2 HCl(aq) + Mg(OH)₂(aq) → MgCl₂(aq) + H₂O(l)
<em>E.) Given that the antacid milk of magnesia contains 400 mg of Mg(OH)₂ per teaspoon, calculate the number of milliliters of stomach acid that are neutralized by 1 tablespoon of milk of magnesia. (1 tablespoon = 3 teaspoons.)Express the volume in milliliters to two significant figures.</em>
We can establish the following relations:
- 1 tablespoon = 3 teaspoons
- 1 teaspoon contains 400 mg (0.400 g) of Mg(OH)₂
- The molar mass of Mg(OH)₂ is 58.32 g/mol.
- The molar ratio of HCl to Mg(OH)₂ is 2:1.
- The concentration of HCl is 0.0324 mol/L.
The mililiters of HCl that neutralize 1 tablespoon of milf of magnesia are:
Answer:
It is a reactant, so it enters the plant.
Explanation:
Hello,
Photosynthesis is the natural process occurring when plants produce sugar and oxygen by using the visible light as the catalyst to undergo the following chemical reaction:
In such a way, it is seen that the carbon dioxide has the role of reactant as it is used by the plant, that is, it enters the plant to allow the photosynthesis to be carried out.
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Answer:
the pressure at c = 0.27 atm
Explanation:
Given that:
number of moles (n) = 1.0 moles
Value of gamma in the monoatomic gas (γ) = 5/3
During an isothermal expansion, the volume at b is = 2.5 times the volume at a ; this implies that:
∴ To calculate the pressure at c from a; the process is adiabatic compression; so we apply:
Thus, the pressure at c = 0.27 atm