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Question
6
.
00
gm
Fe
2
(
SO
4
)
3
এ কতগ্রাম sulfar আছে?
2.40gm
0.48gm
6.00gm
1.44gm
2.44gm
ANSWER : 4
Descrption
<p style="margin-left:0px;"><strong>1.44gm</strong>।</p><p style="margin-left:0px;">Fe 2 ( SO 4 ) 3 -এর মোলার ভর হল 400.00 g/mol।</p><p style="margin-left:0px;">6.00 gm Fe 2 ( SO 4 ) 3 -এ Fe 2 ( SO 4 ) 3 -এর মোল সংখ্যা হল:</p><p>(6.00 g) / (400.00 g/mol) = 0.015 mol </p><p style="margin-left:0px;">1 mol Fe 2 ( SO 4 ) 3 -এ S এর মোল সংখ্যা হল 3 mol।</p><p style="margin-left:0px;">0.015 mol Fe 2 ( SO 4 ) 3 -এ S এর মোল সংখ্যা হল:</p><p>(0.015 mol Fe2(SO4)3) * (3 mol S / 1 mol Fe2(SO4)3) = 0.045 mol S </p><p style="margin-left:0px;">0.045 mol S এর ভর হল:</p><p>(0.045 mol S) * (32.06 g/mol) = 1.44 g </p><p style="margin-left:0px;">সুতরাং, 6.00 gm Fe 2 ( SO 4 ) 3 -এ 1.44 gm S আছে।</p>
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