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Vikki [24]
3 years ago
13

a normal hemoglobin concentration in the blood is 15g/100ml of blood how many kilogram of hemoglobin are in a person who has 5.5

l of blood
Chemistry
2 answers:
babunello [35]3 years ago
8 0

Answer:

there are 0.825 kg in 5.5 l of blood

Explanation:

First, we have to convert L into mL so we work with the same units

(5.5L)(\frac{1000mL}{1L}) =5500 mL

Using a rule of three we have:

15 g of hemoglobin ------> 100 mL of blood

               x               ------> 5500 mL of blood

x=\frac{(15 g)(5500mL)}{100mL} =825g

As the answer must be in kilogram we must convert grams into kilograms:

(825g)(\frac{1kg}{1000g} )=0.825kg

jok3333 [9.3K]3 years ago
4 0
Using stoichiometry:

5.5 L of blood x (1000 mL/1L) x (15 g/100 mL) x (1 kg/1000 g) = 0.825 kg
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masya89 [10]

30.576 g of hydrogen

Explanation:

First we need to covert the pound in grams.

if        1 pound is equal to 453.592 grams

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Now we look at the chemical reaction where hydrogen (H₂) reacts with nitrogen (N₂) to produce ammonia (NH₃):

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Now taking in account the chemical reaction, we formulate the following reasoning:

if         3 moles of hydrogen produce 2 moles of ammonia

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0.22 L of HNO3 is titrated to equivalence using 0.10 L of 0.1 MNaOH. What is the concentration of the HNO3?
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