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What else can I help you with?
When one mole of sodium chloride dissociates in water it produces?
When one mole of sodium chloride dissociates in water, it produces one mole of sodium ions (Na+) and one mole of chloride ions (Cl-). Each ion carries a single positive or negative charge respectively.
What is an ion that is composed of only a single atom?
could be monatomic but many ions are comprised of multiple atoms - for example when sulfuric acid dissociates, one of the ions it yields is SO4-- (having trouble getting a superscript but the ion has a double negative charge)
Is potassium hydroxide a strong or weak base?
yes, almost total dissociation in water, the more OH negative hydroxide ions in solution, the more basic the solution is.
What is negative 20 degrees Fahrenheit in Celsius?
°C = (°F − 32) × 5⁄9 °C = (-20 − 32) × 5⁄9 °C = -53 × 5⁄9 °C = -29.4 Therefore -20°F is equal to -29.4°C
Why would a negative iodine test for starch indicate a positive result for the enzymatic degradation of starch by amylase?
A negative iodine test for starch indicates that the starch has been broken down by amylase into simpler sugars, such as maltose or glucose, that do not react with iodine. Therefore, the absence of a starch-iodine complex formation suggests that amylase has successfully degraded the starch substrate.
How calculate pH for a solution?
HCl is a strong acid and dissociates completely. Therefore it can be found using the equation: ph= -log [H+]
A substance that completely dissociates into its ions in solution?
A strong electrolyte is a substance that dissociates completely into positive and negative ions in its solution. Examples of strong electrolytes that are acids are hydrochloric and nitric acids.
What is the pH of a 5.7 x 10-2 M solution of HI?
The little 'p' means -log10 (that's the negative log to base 10). Thus pH means -log10(Hydrogen ion concentration) → pH of the solution = -log10(7.0 x 10-2) ≈ 1.15
What is the pH of a solution of 10 M HCl?
pH= minus 1 Because HCl is a strong acid it will dissociate completely in water to form hydronium ions. The pH can therefore be calculated by taking the negative log of the concentration. pH=-log10 =-1 Therefore the pH is negative one. This indicates that it is a very strong acid. This value is also applicable even though it is outside of the standard scale.
When Is an acid considered a strong acid?
A strong acid completely dissociates into its H+ ion and its negative ion in a 1.0M solution. For example, sulfuric acid, H2SO4, completely dissociates into its hydrogen ions, H+, and its sulfate ions, SO42-. The strong acids are as follows: hydrochloric acid, HCl, nitric acid, HNO3, sulfuric acid, H2SO4, hydrobromic acid, HBr, hydroiodic acid, HI, and perchloric acid, HClO4. (About.com chemistry)
Are ions negatively charged?
You can have positive ions and negative ions. For example, take saltwater which dissociates into: Na+ & Cl- Typically the number positive charges and negative charges must balance.
What is the negative ion of lithium sulfide?
The negative ion of lithium sulfide is sulfide ion (S2-). This is formed when lithium sulfide (Li2S) dissociates into its ions in solution.
What acid is not a strong acid?
The strength of an acid does not depend on how corrosive it is but by the degree to which it dissociates in water. A strong acid completely dissociates into ions, producing hydrogen (H+ ions) and negative ions that depends on the particular acid (HCl --> H+ + CL-, HNO3 -- H+ + NO3-). A weak acid only partially dissociates. The strong acids are: Hydrochloric acid (HCl) Hydrobromic acid (HBr) Hydroiodic acid (HI) Nitric acid (HNO3) Sulfuric acid (H2SO4) Perchloric acid (HClO4) Some lists also include periodic acid (HIO4) and chloric acid (HClO3) as strong acids. All other acids are assumed to be weak.
The Ability of writers to completely identify with their characters is?
The ability of writers to completely identify with their character is known as negative capability.
Why negative times positive equals negative?
when you multiply something you increase the value. therefore, when you multiply a negative by a positive, you'll get a negative.
What is critisism?
Criticism is having a comment for something and delivering it, whether in a positive or completely negative way. Criticism is having a comment for something and delivering it, whether in a positive or completely negative way.
When a strong acid dissolves in water how many molecules break apart?
All of them. The definition of a strong acid is a molecule that completely dissociates into hydrogen ions and a negatively charged ion in water. In contrast, a weak acid is a molecule that partially dissociates into hydrogen ions and a negative charge ion in water - you can find both the intact acid form (HA) and the ion forms (H+ and A-) in the water.
