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When the half of water in 1m soln of sucrose is boiled off what happen the conc of sucrose?
it becomes 2m
Why the conc h2so4 cant be used in preparation oh h2s?
h2so4 being good oxidising agent oxidises the h2s to h2o and free sulphur.so conc h2so4 cant be used in preparation of h2s gas
What is the rule for mixing acids and water?
Always add acid to water, not water to acid. This helps to prevent the acid from splashing back and causing potential harm, as adding water to acid can lead to an exothermic reaction and potentially dangerous spattering.
Is barium sulfite soluble in water?
0.16 grams of BaF2 only soluble in 1 litre of water. But it can be dissolved using Nitric acid and Hydrochloric acid. 0.5 g BaF2 + 5 ml Conc. HCl + 5 ml of Conc. Nitric acid - boil it until effervescence ceases. Add some water. You get clear solution.
Why you add talc in conc cinnamon water?
The use of talc greatly increases the surface area of the volatile substance, insuring more rapid saturation of the water
How is the strength of hydrogen peroxide changed?
Water is added to decrease the Conc^ or the water is evaporated of to increase the Conc^
What is reaction of a exothermic?
Mixing of conc. sulfuric acid with water
Why it is necessary to add conc H2SO4 in conc HNO3 but not vice versa?
hhsggsqq
When the half of water in 1m soln of sucrose is boiled off what happen the conc of sucrose?
it becomes 2m
How could humans apply the squid's method of locomotion in the water to a human-made vehicle targeted to move in the water?
use conc ink
How do you make .02 N hydrochloric acid?
dilute 1.7 ml of Conc. HCl to 1000 ml with water
Find equilibrium constant of the reaction?
eqb constant k For a general EQN A+B=S+T the equilibrium constant can be defined by[1] k={S}{T}/{A}{B} {S} = MOLAR CONC. OF S{T} = MOLAR CONC. OF T{A} = MOLAR CONC. OF A{B} = MOLAR CONC. OF B
What solution can make gold sparkle again but reduces its weight?
Aqua regia or royal water (mixture of conc. HCl and conc. HNO3 in the ratio of 3:1 by volume) 3HCl + HNO3 = NoCl+2 H2O + Cl . NoCl= nitrosyl chloride Cl= nascent chlorine
What does 2x concentration mean?
double conc.
How do you find a partition coefficient?
partition coefficient = [s1] / [s2] [s1] is conc of drugs in phase 1 and [s2] is conc of drugs in phase 2.
What change in cell volume will occur when a cell is placed in a hypotonic colution?
water will move from the solution into the cell, causing the cell to swell. (higher concentration of water outside the cell, lower conc. inside, so water moves in)
What are in Ziploc sandwich bags?
PlasticPolyethylene-Linear Low DensityPolyethylene-Low DensityDyesPE Color Conc Blue 1635C PECPE Color Conc Magenta 1435C PEC
