3 years ago

which is a way to express concentration of a solution? parts per billion moles molar mass force per square meter

Chemistry

2 answers:

stich3 [128]3 years ago

5 0

Answer:

parts per billion

Explanation:

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Leya [2.2K]3 years ago

3 0

Answer:

parts per billion

Explanation:

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The CDC recommends that levels of lead in adults be no greater than 40 ug per dL of blood. At that level a) how many grams of le

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3 years ago

How many grams of water would require 2200 joules of heat to raise it’s temperature from 34 degrees Celsius to 100 degrees celsi

Arada [10]

Answer:

Mass, m = 7.97 grams

Explanation:

We have,

Initial temperature was 34 degrees Celsius

Heat produced in it is 100 calories of heat

The specific heat capacity of water is 4.18 J/g °C

The heat produced due to change in temperature is given by :

$Q=mc(T_f-T_i)$

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$m=\dfrac{Q}{c(T_f-T_i)}\\\\m=\dfrac{2200}{4.18\times (100-34)}\\\\m=7.97\ g$

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3 years ago

which is a way to express concentration of a solution? parts per billion moles molar mass force per square meter​

which is a way to express concentration of a solution? parts per billion moles molar mass force per square meter