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Date: 8-8-2016
747
Date: 21-5-2019
747
Date: 21-5-2019
663
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Concentration is a general measurement unit stating the amount of solute present in a known amount of solution
Although we associate the terms “solute” and “solution” with liquid samples, we can extend their use to gas-phase and solid-phase samples as well. Table 1.1 lists the most common units of concentration.
Table 1.1
Name | Units | Symbol |
---|---|---|
molarity | molessoluteliterssolution |
M | |
formality | molessoluteliterssolution |
F | |
normality | equivalentssoluteliterssolution |
N | |
molality | molessolutekilogramssolvent |
m | |
weight percent | gramssolute100gramssolution |
% w/w | |
volume percent | mLsolute100mLsolution |
% v/v | |
weight-to-volume percent | gramssolute100mLsolution |
% w/v | |
parts per million | gramssolute106gramssolution |
ppm | |
parts per billion | gramssolute109gramssolution |
ppb |
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دراسة يابانية لتقليل مخاطر أمراض المواليد منخفضي الوزن
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اكتشاف أكبر مرجان في العالم قبالة سواحل جزر سليمان
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اتحاد كليات الطب الملكية البريطانية يشيد بالمستوى العلمي لطلبة جامعة العميد وبيئتها التعليمية
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