The tallest mast in the world is the kthi-tvmast in branchard, which measures 2063 feet , what is the expressed in meter?

1ft=.3048meter

So if we have 2063ft and want it in meters we just do a simple unit conversion.

(2063ft)(.3048meters/1ft)=628.8meters. Here ft cancel out and leave us with meter units.

Any questions please feel free to ask. Thank you.

About 186 g of  NH₄Cl

Explanation:

The translation of the question is:

Specify how many grams of NH₄Cl, ammonium chloride, should be dissolved in 300g of water at 70ºC to obtain a saturated solution.

plz give it best

Solution

The file attached shows the graph with the solubility curves for a number of solutes in water.

There, I show you the solubility of a solution of NH₄Cl at 70ºC: it is about 62g of NH₄Cl per 100 grams of water.

Then, the amount of  NH₄Cl in 300g of water at that temperature is calculated using proportions:

300 g of water × 62 g of  NH₄Cl / 100 g  of water = 186 g of  NH₄Cl