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In a reaction 25 grams of reactant AB breaks down into 10 grams of product A and an unknown amount of product B. Using the law of conservation of mass how much does product B weigh?
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How do you test the chemical of carbon dioxide and what are the result?
Bubbling an unknown reactant gas of a chemical reaction through a bottle containing lime water causes the clear liquid to become cloudy as calcium carbonate is precipitated out. This is he classic test for the presence of Carbon Dioxide
Is a vasovagal reaction the result of an allergic reaction?
Allergic reactions are not typically a trigger for a vasovagal nerve reaction. However, there are a number of known triggers, as well as some unknown. Any type of nerve malfunction, stress, or pain can trigger a reaction, so the symptoms associated with an allergic reactions should not be ruled out entirely.
How do you determine whether an unknown substance is a carbonate or bicarbonate when comparing the mass of the substance before and after heating?
when bicarbonate is heated it decomposes into the carbonate, one water and one carbon dioxide. it is this loss of mass that will enable you to determine the identity of the anion in your unknown. make balanced equation. go moles to grams on each side using atomic mass then divide mass of carbonate by mass of bicarbonate.... aka product by reactant and if larger then 100 then it's a carbonate and subtract 100 from your answer and that is how much you gained... if smaller than multiply by 100% and then subtract your answer from 100 and that is how much you lost...
Who is the first inventor of aloe vera shampoo?
The first inventor of Aloe Vera shampoo is unknown. Many people think that this was a product in shampoos since the beginning of time.
What is quantitative information used to test an unknown solution?
There is not one! Keep a detailed test record and keep trying regaurdless the the out come. Remember: negative or positive, the product is still knowledge!
What is the formula for titration?
Vr * cr = Vt * ct ==>Actually this is only true for an one-to-one molecular reaction,otherwise it should be corrected for a well balanced titration reactionThus:cr = [ Vt * ct ] / [ Vr ]in which:V = volume (ml) (Vr is mostly the exactly pipetted volume of the 'unknown' solution)c = concentration (mmol/ml) (cr is mostly the 'unknown' conc.)index r = reactant (to be analysed)index t = titrant (compound reacting with reactant)
What product could china trade was unknown to the west?
The product that china traded that was unknown to the west silk.
Who invented decomposition reaction?
unknown
How do you test the chemical of carbon dioxide and what are the result?
Bubbling an unknown reactant gas of a chemical reaction through a bottle containing lime water causes the clear liquid to become cloudy as calcium carbonate is precipitated out. This is he classic test for the presence of Carbon Dioxide
What is back titration and how does it work?
A back titration is similar to a direct titration, but a bit more difficult. When an end point is not easily identified due to no colour change, an excess volume of a reactant of KNOWN CONCENTRATION is added to the reactant of unknown concentration. Then the resulting mixture is titrated again (or titrated back) to find the volume of the unreacted reactant, which will tell us the amount that DID react with the solution of unknown concentration. You need to take into account the amount of excess reactant originally added. The relevant calculations can then be taken out. Hence there are three reactants namely A,B,C. Such that it is to find the purity of C. This titration is possible only if A and B can react with each other and A and C can react with each other but the product of A and C do not react with B.
What is the name of the disaccharide produced by this reaction?
Reaction unknown, please state 'this' in a new question.
What is the product of five and an unknown number?
5x
How can an unknown hreaction be determined usings hess law?
Enthalpies from reaction steps are added to determine an unknown Hreaction
How can an unknown Hreaction be determined using Hess's law?
Enthalpies from reaction steps are added to determine an unknown Hreaction
What is the purpose of adding an indicator to an unknown solution?
Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution
How can an unknown deltaH reaction be determined using Hess's law?
Enthalpies from reaction steps are added to determine an unknownHreaction.
What products could china trade that was unknown to the west?
the product that china trade that was unknown to the west was silk
