A laboratory instructor gives a sample of amino acid powder to each of four students, i, ii, iii, and iv, and they weigh the sam
2 answers:
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Answer:
(a) The area of space shuttle is .
(b) $10.427 is the cost of the patch.
Explanation:
Area of the patch of the space shuttle =
a) 1 cm = 0.00001 km
b) 1 cm = 0.393701 inch
Cost of patching area =
Cost of patching are:
In 1 mole of , there are 3 moles of ions, 1 mole of Ca^{2+} and 2 mole of
.
Molar mass of is 110.98 g/mol. Calculating number of moles from given mass as follows:
Thus, number of moles of ions will be .
Since, 1 mole of any substance has units of that substance where
is Avogadro's number.
Thus, 9.38 mol of ions will have number of ions.
Therefore, total number of ions in 347 g of is
.