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7nadin3 [17]
3 years ago
5

What is the [H+] concentration of a solution with a pH of 3.78

Chemistry
1 answer:
lianna [129]3 years ago
6 0

Answer:

[H+] = 1.66 x 10^{-4}

Explanation:

To find the [H+] concentration of a solution, we can use the formula:

[H+] = 10^{-pH}

Let's plug in the pH.

[H+] = 10^{-3.78}

Evaluate the exponent.

[H+] = 1.66 x 10^{-4}

Hope this helps!

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Most foods that are high in calcium are poor sources of iron. this statement illustrates the characteristic of a nutritious diet
natka813 [3]

Most foods that are high in calcium are poor sources of iron. this statement illustrates the characteristic of a nutritious diet known as balance.

Nutrition is the biochemical and physiological processes by which organisms use food to sustain life. It provides organisms with nutrients that can be metabolized to produce energy and chemical structures. An inadequate supply of nutrients leads to malnutrition.

Although these two definitions may seem similar, there are differences. Health simply means food that protects you from disease and keeps you alive. Nutrient-rich foods mean foods that provide sufficient nutrients (vitamins, carbohydrates, proteins) that the body needs to survive the kind that is either low in fiber or high in fat, salt, and/or sugar. Eating too much food or drink.

Learn more about   nutritious  here

https://brainly.in/question/25409994

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6 0
1 year ago
The radii of the lithium and magnesium ions are 76 pm and 72 pm, respectively. which compound has stronger ionic attraction, lit
quester [9]
 <span>From the Born–Landé equation the lattice energy U ∝ (Z+ × Z-) / (r+ + r-) where Z+ and Z- are the charges on the cation and anion, respectively; r+ and r- are radii of the cation and anion, respectively.

The Z+×Z- term dominates. MgO has 2×2 (4) so it will have the higher U than Li2O Z+ × Z- = 2.
You only consider (r+ + r-) term when the Z+×Z- term is the same; smallest the (r+ + r-),  the larger is the U. 
U(MgO) = 3795 </span>kJ mol^-1
<span>U(Li2O) = 2799 kJ mol^-1 

MgO has larger.

</span>
6 0
3 years ago
Calculate gram formula mass of LiCl(s)
Nadya [2.5K]

Answer:

The answer is 42, 39 grams of LiCl

Explanation:

We calculate the weight of 1 mol of LiCl, from the atomic weights of each element obtained from the periodic table:

Weight 1 mol LiCl= Weight Li  + Weight Cl =6,94 g+ 35, 45 g= 42, 39grams

5 0
3 years ago
The basic principle of energy is:
nevsk [136]

Answer:

3)  Neither created nor destroyed.  Only converted.

Explanation:

8 0
2 years ago
4 moles of hydrogen react with 5 moles of oxygen to form water, identify the excess reagent?
Fynjy0 [20]

Answer:

Excess Reagent = oxygen

Explanation:

Limiting reagent: The substance that is totally consumed when the reaction is completed.

Excess reagent: The substance left after the limiting reagent is consumed completely

The balanced chemical equation for formation of water is as follow:

2H_{2}+O_{2}\rightarrow 2H_{2}O

This means when 2 moles of hydrogen reacts with 1 mole of oxygen, 2 moles of water is produced.

Hence the ratio in which hydrogen and oxygen gas reacts is 2:1

Now if 2 mole hydrogen require 1 mole of oxygen ,then 4 mole hydrogen need 2 mole of oxygen.

H_{2}:O_{2}=2:1

or

H_{2}:O_{2}=4:2

Here 5 mole of oxygen is reacting but only 2 mole is required .

Oxygen is in excess.

5 0
3 years ago
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