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What properties must a compound have to make it suitable for use as a primary standard?
How will you prepare serial dilutions of the BSA standards from 2000µg to 100µg for total volume of 1mL?
For BCA estimation, 50: 1: Solvent A: Solvent B of working reagent is required. How much solvent A and solvent B will you take for a total volume of 5mL?
You have to dilute chemical X 5 times (i.e. 1:5 dilution) for 200µL. How much chemical X and solvent will you take?
140 g of S2Cl2 was collected from the reaction of 640 g of Sulfur and 142 g of Chlorine. How much of the excess reactant was left over?
CH4(g) + 2H2S(g) CS2(g) + 4H2(g)
Balance the redox reaction using the steps on the oxidation state method(10 pts)
HNO² + HI -> NO + I² + H²O
- A flea is located 3.0 cm from convex spherical mirror whose radius of curvature is 8.0 cm. Where is the image of the flea?
- An object is placed 2.0 cm in front of a concave spherical mirror whose radius of curvature is 8.0 cm. Use the mirror equation to locate the position of the image and its size.
- a coin 2.0 cm in diameter is held 20 cm in front of a concave spherical mirror of 30 cm radius of curvature. Locate the image of the coin and its height.
Determine the ΔS system given the reaction :
C6H12O6 (s) + O2(g) --------------→ CO2 (g) + H2O(l)
In that problem, is R a know value that never changes?
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#340153 on Dec 2023