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a man was found to have 6 mmol/litre of lead in his blood, if 1000mmol =1 mol
and the man has 5 litres of blood in him. how many grams of lead will he have in his blood
Which of the following aqueous solutions will produce a blue precipitate with aqueous sodium hydroxide?
magnesium carbonate, MgCO3/ forms a hydrate containing 39.1% water of hydration. Calculate the formula of this hydrate containing 39.1 % water of hydration. Calculate the formula of this hydrate
Calculate total, temporary and permanent hardness present in given water sample
C by using complexometric titration. Disodium salt of EDTA is used as a
complexing agent and its concentration is to be determined by titrating with
standard hard water. Given standard hard water was prepared by dissolving 1.50 g
of anhydrous Calcium carbonate in 2L of water.
Give balanced equation for the following reactions:
a. Zinc to sodium zincate -using an alkali
b. Water gas to hydrogen – industrially
c. Sodium aluminate from aluminium
d. Hydrogen from boiling water using a divalent metal
e. Hydrogen from Steam using a metal and the reaction is
reversible
f. Balanced equation for the laboratory preparation of
hydrogen
g. Steps followed in Bosch process
h. Magnesium chloride from HCl
i. Water gas from water
j. Aluminium sulphate from aluminium
How many L of 4.0 m solution can be made with 132g of Nacl?
Calculate the mass of pb that will be deposited from an aqueous solution of pb 2 salt by the same quantity of electricity that deposit it 2.70g cu from an aqueous solution of cu 2 salt
Base from what you understand from the discussions and examples in your module, give one important application of understanding the mole concept particularly in the field of Science. Give your answer in this manner.
Field of Science (examples, medicine, Chemistry etc.) = Practical
Application (pls be specific and explain. Give example if possible.
The data below were determined for the reaction shown below. s2o82– + 3i – (aq) → 2so42– + i3–
Express the following number in scientific notation. Do NOT include unit in your answer. Please use e to refer to power of 10. For example, 1 x 10^6 should be entered as 1e6, 4.5 x 10^-7 should be entered as 4.5e-7.
Feature size of a structure on a particular computer processor chip is 0.000000032 m, scientific notation is ______ m.
