answersLogoWhite

0

Select your study mode:

Cards in this guide (23)
An experiment for a new medicine was tested by two groups of people One group was given the medicine The other group was given a sugar pill The sugar pill serves as the

Control group, or simply control. Please study.

If more reactant is added to an equilibrium system what happens to the equilibrium position for the reaction

When a reactant is added to a system the system shifts away from the added component

What does a catalyst do in the Haber Process

It speeds up the reaction that produces ammonia.

According to zinn what is his main purpose for writing A people's history of the US

Zinn's main purpose for writing A People's History of the United States was to give an accurate and detailed account of American history from the victim's point of view.

What is the base-dissociation constant for a weak base

Suppose: B- is symbol for any (soluble) base.

Equilibrium of a base when diluted in water:

B- + H2O <==> HB + OH-

Equilibrium constant:

Keq = [HB] * [OH-] / [B-] * [H2O]

The base dissociation contant is defined by:

KB = [HB]*[OH-]/[B-]

So, KB = Keq*[H2O] = Keq*55.6 mol/L

Why is Mandela in hospital

He was in hospital for a respiratory infection.

What does le chateliers principle say about upsetting a system at equilibrium

A system whose equilibrium has been upset will shift to restore equilibrium.

What information does an acid or base equilibrium constant give

The information an acid or base equilibrium constant gives is that the acidity and base levels are equal to the equilibrium constant multi[plied by the water concentration.

What does Le Chatelier's principle say about upsetting a system at equilibrium

Le Chatelier's principle says that if a system in chemical equilibrium is disturbed, the system will move in such a way as to nullify that change.

What information does the pH of a solution give

pH of a solution tells us about the nature of a solution( i.e acidic or basic ) if pH of a solution is less than 7 tahn it's acidic if it's 7 then it's neutral and more than seven will make it base.

Which of these correctly lists the order of the engineering process

Identify a need, research the background, make a plan, do the work, evaluate the results, look for improvements. (APEX)

What will happen when a reactant is added to a system at equilibrium

The equilibrium of the system will be upset.

What is the acid dissociation constant for an acid at equilibrium HX H X

The dissociation constant is:
k = [H][X]/[HX]

How is the H fusion used to calculate the mass of solid that 1kJ of energy will melt

1kj x 1/H fusion x g/mol solid

A scientist is using his knowledge of statistics to determine whether test results show that a composite drug has effectively counteracted allergy symptoms. What is the scientist doing

evaluating test results.

Scientist wants to make advances in the way skin cancer patients are treated what is something she should do first

look at the success rate of the current treatments

What equation is used to calculate the pH of a solution

pH = -log [H+(aq)]. In words, pH is the negative logarithm (to the base 10) of the hydrogen ion concentration.

What significant ethical dilemma that a drug designer may face

Its the answer that involves the thyroid

What happens if more products is added to a system at equilibrium

More reactant will form

High-throughput drug screening involves determining what

The interactions between various compounds and a disease

Ask us anythingWhich of the following is the best thermal conductor

Metal (APEX)

A scientist has just developed a composite drug to fight seasonal allergies. What is the next step in the engineering process before the drug is released

Testing the composite drug in a trial run.

What equation is for pH

pH=-log[H+]

Edited: it is also pH = 14 - pOH. That is certainly an equation for pH.

Related study guides

Chemistry

26 cards

If more reactant is added to an equilibrium system what happens to the equilibrium position for the reaction

A solution has a pH of 3.4. What is the pOH of this solution

What happens to a reaction at equilibrium when more reactants are added to the system

What are the function of buffer

➑️
See all cards

Chemistry

24 cards

If more reactant is added to an equilibrium system what happens to the equilibrium position for the reaction

A solution has a pH of 3.4. What is the pOH of this solution

What happens to a reaction at equilibrium when more reactants are added to the system

How is an equilibrium constant expressed

➑️
See all cards

Chemistry

29 cards

What is base dissociation constant

If more reactant is added to an equilibrium system what happens to the equilibrium position for the reaction

What happens to a reaction at equilibrium when more reactants are added to the system

How is an equilibrium constant expressed

➑️
See all cards

Chemistry

29 cards

How does a buffer work

What happens in a neutralization reaction

What is meant by the rate of reaction

If more reactant is added to an equilibrium system what happens to the equilibrium position for the reaction

➑️
See all cards

Chemistry

24 cards

What happens in a neutralization reaction

What is meant by the rate of reaction

If more reactant is added to an equilibrium system what happens to the equilibrium position for the reaction

A solution has a pH of 3.4. What is the pOH of this solution

➑️
See all cards