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fenix001 [56]
3 years ago
15

What is the pH of a solution of 0.900 M KH2PO4, potassium dihydrogen phosphate? Express your answer numerically to the hundredth

s place.
Chemistry
1 answer:
stepan [7]3 years ago
3 0
4.67 is the right answer

+ − − log(7,5 ∗ 10−3) − log(6.2 ∗ 10−8) ,34 ,24
= 2 = 2 =4.67
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HELP FAST PLEASE! What is the limiting reactant if 43.4 g of NH3 react with 30 g of NO? The balanced equation is 4NH3 + 6NO --&g
givi [52]

The limiting reactant in the reaction is the NO molecule.

<h3>What is limiting reactant?</h3>

The limiting reactant is the reactant that is present in the least amount in the reaction. The rate of reaction depends on the limiting reactant.

Given the reaction; 4NH3 + 6NO --> 5N2 + 6H2O.

Number of moles of NH3 = 43.4 g/17 g/mol = 2.55 moles

Number of moles of NO = 30 g/30 g/mol = 1 mole

Now if 4 moles of NH3 reacts with 6 moles of NO

2.55 moles of NH3 reacts with 2.55 moles * 6 moles/ 4 moles

= 3.8 moles

Hence, the limiting reactant in this reaction is NO.

Learn more about limiting reactant:brainly.com/question/14225536

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5 0
2 years ago
D is a green crystalline solid that dissolves in water to give a very pale green solution addition of sodium hydroxide solution
Ksivusya [100]

Answer:

I think its iron(II) oxide

Explanation:

The substance is black but when it's mixed with water it turns green solution so when mixed with sodium Hydroxide it turns green

5 0
3 years ago
Which substances are released during cellular respiration?
scZoUnD [109]
Answer is: carbon dioxide and water <span>are released during cellular respiration.
</span>Chemical reaction of cellular respiration:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O.
There are 18 oxygen atoms (six in glucose and twelve in six molecules of oxygen) in left side of chemical reaction and also 18 oxygen atoms (twelve in six molecules of carbon dioxide and six in six molecules of water) at the right.
8 0
3 years ago
17. The equation below represents a chemical reaction that occurs in living cells.
RSB [31]

Answer:

36 atoms

Explanation:

  • C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy

The reactants are in the left side of the equation. <u>First we determine how many atoms are there in the C₆H₁₂O₆ molecule</u>:

  • 6 C atoms + 12 H atoms + 6 O atoms = 24 atoms in total

There are two atoms in a O₂ molecule, and there are 6 O₂ molecules in the equation:

  • 2 * (6 O atoms) = 12 atoms in total

The total number of atoms in the reactants is

  • 24 + 12 = 36 atoms
4 0
3 years ago
NEED THIS ASAP. PLEASE HELP. WILL GIVE 10 PTS WILL!!! MARK BRAINLIEST!!!
mario62 [17]
C hope it helps bye bye
3 0
2 years ago
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