Chemistry Homework Assistance
QuestionAI's chemistry problem solver is a middle school chemistry tutoring tool that summarises key chemical reactions and equations in real-time, featuring a robust learning system to empower even those with a weak foundation in chemistry.
You needn't fret over the elemental properties of the periodic table anymore. Here, you can effortlessly access chemical reactions and reaction principles corresponding to each element. Deductive reasoning from microscopic phenomena to discern the original structure of molecules and atoms is a research technique we staunchly champion.
- The sodium hydroxide solution in this investigation contains 80 grams per din The students use 40cm^3 of sodium hydroxide solution. Calculate the mass of sodium hydroxide in 40cm^3 __ Mass =underline ( )
- (c) Calculate the relative formula mass (M_(r)) of magnesium fluoride (MgF_(2)) Relative atomic masses (A_(r)):F=19 Mg=24 Relative formula mass (M_(r))= __ (d)Argon is a noble gas. Explain why no product is formed when magnesium and argon are heated together. __
- 44 x In a metal, the DELOCALISED electrons have the ability to (1)-throughout the metal so their ELECTROSTATIC effect is (2) between the structure. 1: remain in a set position; 2: shared square square 1: remain in a set position; 2: centralised
- teachealogist working in a health come year old make patient for liver function manual colorimeter clinical chemistry analyset in Which part of the instrument emabled an absorbance realing at range of warelengthe? (A) Filtur (B) Cuvet (D) Monochromation 17. A laboratory technology student came to a diagnoene liberatory for peactical attachment The student asked the technologist have the hinds formed one electrophoresis molium What was the most possible explanation of the technologis? (A) The band is formed based upon size to volume ratio (B) The band is formed based upon volume to mass ratio (C) The band is formed hased upon charge to mass ratio (D) The hand is formed based upon volume to charge natio 38. A laboratory technologist working at a research laboratory wants to reparate is protein mixture using ion exchange chromate goaphic technique Therefore, he wants to adiunt this ino-electric point of the protein of interest to that it will be cluted out finit and with expected amount What solution should be used to partition the protems acconding to their iso-cleane point? (A) Buffer solution (C) Aculic solution (B) Sample solution (D) Alkalino solution 39. A laboratory technologist performs Zieh Neelsen staining for the diagnost ul Mycoliac erium leprac. The technologist performs all the stains correctly except adding the counter stain. What will the technologist likely observe during the examination of this staining? (A) Red rod shaped bacteria with green background (B) Green rod shaped bacteria with red background (C) Red rod shaped bacteria with colorless background (D) Green rod shaped bacteria with colorless background 40. A laboratory technologist performs gram staining from 1 wound swah The technologist stains the fixed microscopic stide correctly until addition of lugol?iodine. What is the next staining reagent to be used after washing it out? (A) Acetone -alcohol (C) Crystal violet (B) Carbolfuchain (D) Safranin
- 4. Which color-coded tube does not contain any additives? a. Red b. Yellow c. Lavender d. Green