Inorganic Chemistry Answers

how many grams of urea should add to 100 grams of pure water to minimize the vapour pressure of water to 0.5 kpa in 0 centigrade of tempreture.

five gram of farm amide is solved in 100 gram of water in 30 centigrade of tempreture.vapour pressure of this solution is 31.2 mmHg.if the vapour pressure of pure water in this tempreture is 31.8mmHg.find their molecular mass.

Newlands law of octaves was rejected mainly because of;
A. Elements were arranged in increasing order of atomic mass
B. The cycle of repetition shown by elements is similar to octave in music
C. It could not hold good for elements heaver than calcium
D. Many radioactive elements have not been discovered then

a metal x form a salt xso4 form a clean solutions in water which react with Naoh solution so form blue precipitate y .metal x is used making electric wire and alloy like brass.what do think metal x could be?

what is the chemical formula of laughing gas?

how much NaNO3 must be weighted out to make 50ml of aqueous sol. containing 70mg per
ml?

what contribution of cfas in detergnt powder?

in a cilender8 inches in diameter and12 inches in length. another cilender inside the cilinder with a clesrence of 1 inch all around all sides.and closed to seal the top compleatly. on the bottom a small hole to inkect liquid nitrogin.pour liuqid into container,inject liquid nitrogin. how many seconds will it take to freeze liquid? such as water etc.

Which ingredient is the limiting reactant if you have 5 cups of flour, 9 eggs and 3 tbs of oil?

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