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There is a 1,000-fold decrease in H+ concentration when the pH increases by 3 units (pH 4 to pH 7). This is because the pH scale is logarithmic, so each unit change represents a 10-fold change in H+ concentration.

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1y ago

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What does ph4 mean?

pH4 refers to a specific level on the pH scale, which measures the acidity or alkalinity of a solution. A pH of 4 indicates that the solution is acidic, as it is below the neutral pH of 7. Common substances with a pH around 4 include vinegar and some fruit juices. This level of acidity can affect chemical reactions and biological processes in various contexts.


What is PH4?

PH4 could refer to phosphine, which is a chemical compound with the formula PH3. It is a colorless, flammable gas.


What is the oxidation number of PH4?

The oxidation number of PH4 cannot be determined because phosphorus (P) does not have a fixed oxidation number in this compound.


Why is the bond angle in PH4 higher than PH3?

The bond angle in PH4 is higher than PH3 because PH4 has a tetrahedral molecular geometry with bond angles of about 109.5 degrees, while PH3 has a trigonal pyramidal molecular geometry with bond angles of about 107 degrees. This difference in bond angles is due to the presence of an additional hydrogen atom in PH4 compared to PH3.


What is the molecular geometry of PH4 plus?

tetrahedron


What is the hybridization of PH4?

PH4 has sp3 hybridization. This means that the phosphorus atom forms four sigma bonds using one 3s orbital and three 3p orbitals.


What is pH4 sunbstance?

A substance with a pH of 4 is considered to be acidic. The pH scale ranges from 0 to 14, with values below 7 indicating acidity, 7 being neutral, and above 7 indicating alkalinity. Common examples of substances with a pH of around 4 include orange juice and vinegar. At this level of acidity, the substance can potentially cause irritation to the skin or mucous membranes upon contact.


How much stronger is pH 9 than ph4?

The strength of an acid or base is measured on a logarithmic scale, meaning a change of 1 pH unit represents a tenfold difference in acidity or basicity. Therefore, a substance with a pH of 9 is 1,000 times stronger in basicity than a substance with a pH of 4.


What substance has pH4?

Any acid solution with 1.00*10-4 mol/L H3O+


Is ph4 a dipole?

No it's not. It is non-polar since it has a geometrical shape of a tetrahedral. Tetrahedral geometries are symmetrical, so even if P-H is polar bond, they get cancelled out resulting in a non-polar molecule


Substances with pH less then 7 are?

On the PH scale 7 is concidered neutral. Less tha 7 is acidity. Examples 0 is battery acid, strong hydrofluric acid, 2 - lemon juice, 3- vindgar. Black coffee and soft drinking water are in th PH 5 range. Tomato Juice and Acid rain are Ph4 range.


Suggest a possible value for the PH value of acid rain?

The pH value of acid rain typically ranges from 4 to 5.6.