What is a ribosome?
2 answers:
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Answer:
132 amu
Explanation:
ammonium sulphate is
to calculate molecular weight we need
atomic weight of the element of the compound
here ammonium sulphate is formed by two elements
2 nitrogen , 8 hydrogen , 1 sulphur amd 4 oxygen
atonomic number of nirogen is 14 , hydrogen is 1 , sulphur has 32 and oxygen has 16
so lets calculate molecular weight of ammonium sulphate
2*14 + 8*1 + 1*32 + 4*16
28 + 8 + 32 + 64
132 amu
There will be 89.865 grams of Ar. If you put it in sig figs, it will be rounded to 89.9g At.
0.1 moles of chloride ions were involved in the reaction if 25.0 mL of a 2.00 M CaCl2 solution is used for the reaction.
Explanation:
Data given:
volume of Ca = 25 ml 0r 0.025
molarity of the calcium chloride solution = 2M
number of chloride ions =?
Balance chemical reaction:
Ca + 2 ⇒
number of moles in 25 ml is calculated as:
molarity =
number of moles of calcium chloride = molarity x volume
putting the values in the equation:
number of moles = 2 x 0.025
= 0.05 moles of calcium chloride
1 mole of Ca decomposes as 1 calcium ion and 2 chloride ions
so 0.05 moles will have x moles of chloride ion
=
x= 0.1
0.1 moles of chloride ions will be involved in the reaction.