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Contact [7]
4 years ago
14

Cooks use baking soda to make cakes light and fluffy. You might have used baking soda yourself. Baking soda is NaHCO3. A 0.1 M s

olution of baking soda in water has a [H+] of about 4.0 × 10–9. (You may prefer to think of the hydronium ion concentration, [H3O+], as 4.0 × 10–9.) Write the formula for the calculation of pH, and then show each step as you calculate the pH of a 0.1 M solution of baking soda.
Chemistry
1 answer:
vladimir2022 [97]4 years ago
5 0
PH = -log [H⁺] ←←[log without a specified base means log base 10] 

<span>and if you want to use the hydronium ion concentration then use pH = -log [H₃O⁺] </span>

<span>either way the calculation is the same: </span>


<span>They give that a 0.1 M solution of NaHCO₃ has a hydrogen ion concentration of 4.0 x 10^(-9) </span>

<span>so pH = -log (4.0 x 10^(-9)) </span>

<span>pH = 8.4</span>
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3 years ago
When 1 mole of CO(g) reacts with H2O(l) to form CO2(g) and H2(g) according to the following equation, 2.80 kJ of energy are abso
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3 years ago
What is the volume of 88.2 g of silver metal (density = 10.50 g/cm^3)
babymother [125]

Answer:

The answer is

<h2>8.4 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}

From the question

mass = 88.2 g

density = 10.5 g/cm³

The volume is

volume =  \frac{88.2}{10.5}

We have the final answer as

<h3>8.4 mL</h3>

Hope this helps you

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3 years ago
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3 years ago
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