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dem82 [27]
3 years ago
11

The concentration of hydrogen in soil sample 13 * 10 ^ - 6 * M the soil is tested with a pH meter, what value should the meter r

ead?
Chemistry
1 answer:
vovikov84 [41]3 years ago
6 0

Answer:

pH = 4.9

Explanation:

Given data

[H⁺] = 13 × 10⁻⁶ M

The pH is a scale used to determine <em>the acidity or basicity of a solution</em>. The pH is related to the concentration of hydrogen ions through the following expression.

pH = -log [H⁺]

pH = -log 13 × 10⁻⁶

pH = 4.9

Since the pH < 7, the soil is considered to be acid.

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Georgia [21]

Answer:

2 elements and one compund i think

Explanation:

4 0
3 years ago
Anthony made a pitfall trap by burying a small glass in the ground so that the top of the glass was exactly level with the groun
torisob [31]

Answer:

Spiders and ground beetles.

Why is Anthony so mean? Don't hurt the beetles!

4 0
3 years ago
Homelearning
kirill115 [55]

Answer:

Number of moles of Fe = 10 mol

Number of moles of CO₂ = 15 mol

Explanation:

Given data:

Number of moles of iron oxide = 5 mol

Number of moles of carbon monoxide = 25 mol

Number of moles of product = ?

Solution:

Fe₂O₃ + 3CO   →  2Fe + 3CO₂

Now we will compare the moles of reactant with product.

                  Fe₂O₃        :         Fe

                     1             :          2

                    5             :         2×5 = 10 mol

                Fe₂O₃        :         CO₂

                     1             :          3

                    5             :         3×5 = 15 mol

                  CO           :         Fe

                     3             :          2

                    25             :         2/3×25 = 16.7 mol

                  CO            :         CO₂

                     3             :          3

                    25             :         25

Less number of moles of Fe and CO₂ are formed by iron oxide thus it will act as limiting reactant while CO is inn excess.

                 

4 0
2 years ago
What ingredients are needed to turn the cake mix into cake batter​
svp [43]

Answer:

Ingredients

2 ⅓ cups all-purpose flour.

1 tablespoon baking powder.

¾ teaspoon salt.

1 ½ cups white sugar.

½ cup shortening.

2 eggs.

1 cup milk.

1 teaspoon vanilla extract.

Explanation:

4 0
2 years ago
1 point<br> How many moles of CO2 are there in 100.0 grams of CO2?
VikaD [51]

44.0095 you're welcome hope this helps

3 0
3 years ago
Read 2 more answers
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