BreadOfTheBear
22.12.2020 •
Chemistry
Calculate the mass of silver phosphate necsesary to prepare 250 mL of a 0.345 M solution.
a. 25.3 g Ag3PO4
b. 36.1 g Ag3PO4
c. 44.7 g Ag3PO4
d. 52.3 g Ag3PO4
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Ответ:
C)
Hope this is right
Ответ:
cos 30
Step-by-step explanation:
cos 30 + sin 60 / 1+ sin 30 + cos 60
= root3 / 2 + root3/2 / 1 + 1/2 + 1/2
= root 6/2 by 4/2
= root 6/4
= root 3/2
= cos 30