All categories

3 years ago

H2PO4– + H2O --> H3O+ + HPO4²–

2 answers:

7 0

In the reactant side, Hydrogen Phosphate (H2PO4) is an acid while H2O is amphiprotic, meaning it can be a base or acid. Therefore, in this process for the reaction to occur, H2O acts as the base while H3O+ acts as its conjugate acid. The answer is A.

Paraphin [41]3 years ago

4 0

Answer:

H₂O and H₃O⁺

Explanation:

a base is a substance which can accept proton.

When it accept a proton it forms another substance which is called the conjugate acid of the base which has accepted proton.

Here water (H₂O) acts as base as it has accepted proton from H₂PO₄⁻(an acid).

The conjugate acid of H₂O is H₃O⁺, as it has been formed by acceptance of proton by water molecule.

You might be interested in

Give the coordination number, the charge of the central metal ion, and select the correct name in each coordination compound: A.

Komok [63]

The correct question is

Give the coordination number, the charge of the central metal ion, and select the correct name in each coordination compound:

Na3[CoCl6]

[Ni(CO)4]

[Ni(NH3)3(H2O)2] (NO3)2

Answer:

See explanation for details

Explanation:

Na3[CoCl6]

Name: Sodium hexacholorocobalt III

Charge on the complex: -3

Central metal ion name : cobalt III

coordination number: 6

[Ni(CO)4]

Name: tetracarbonyl nickel (0)

Charge on the complex: 0

Central metal ion name : nickel (0)

coordination number: 4

[Ni(NH3)3(H2O)2] (NO3)2

Name: Diaquatriaminenickel II nitrate

Charge on the complex: +2

Central metal ion name : nickel (+2)

coordination number: 5

4 0

3 years ago

14. pH value are basic are greater than what number while acids are have a pH less than

Mice21 [21]

Answer:

Less than 7 ph value are acidic. Greater than 7 ph value are basic.

5 0

3 years ago

Please explain how to do it as well!

kogti [31]

Answer:

a. $\bold{C_{6}H_{12}O_{6}\rightarrow 6CO_{2}+6H_{2}O}$

△H=−72 kcal

The energy required for production of 1.6 g of glucose is [molecular mass of glucose is 180 gm]

$\bold{Fe_{2}(SO_{4})_{3}+3Ba(OH)_{2}\rightarrow 3BaSO_{4}+2Fe(OH)_{3}}$

The iron(III) ions and chloride ions remain aqueous and are spectator ions in a reaction that produces solid barium sulfate.

7 0

4 years ago

Read 2 more answers

A first-order decomposition reaction has a rate constant of 0.00440 yr−1. How long does it take for [reactant] to reach 12.5% of

mina [271]

Answer:

473 year

Explanation:

Using integrated rate law for first order kinetics as:

$[A_t]=[A_0]e^{-kt}$

Where,

$[A_t]$ is the concentration at time t

$[A_0]$ is the initial concentration

Given:

To reach 12.5% of reactant means that 0.125 of $[A_0]$ is decomposed. So,

$\frac {[A_t]}{[A_0]}$ = 0.125

t = ?

$\frac {[A_t]}{[A_0]}=e^{-k\times t}$

$0.125=e^{-0.00440\times t}$

t = 473 year

8 0

3 years ago

If a bottle of olive oil contains 1.4 kg of olive oil, what is the volume, in milliliters ( mL ), of the olive oil?

Serhud [2]

We know that density of olive oil = 0.93 g/mL

Given that mass of olive oil = 1.4 kg or 1400 g because 1000 g = 1.0 kg

From the definition of density;

Volume = mass/ density

= 1400 g/ 0.93 g/mL

=1505 mL

7 0

3 years ago