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pshichka [43]
3 years ago
10

) A children’s liquid cold medicine has a density of 1.23 g/mL. If a child is to take 2.5 tsp in a dose, what is the mass in gra

ms of this dose? (1 tsp = 5 mL)
Chemistry
1 answer:
vekshin13 years ago
5 0

The relation between density and mass and volume is

Density=\frac{Mass}{volume}

the dose required is 2.5 tsp

each tsp contain 5mL

So dose required in mL = 2.5 X 5 = 12.5 mL

the mass will be calculated using following formula

Mass=DensityXvolume

Mass=1.23\frac{g}{mL}X12.5mL= 15.38g

The mass of dose in grams will be 15.38 g


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Ligands and charges on them,

                             5 × NH₃  =  5 × 0  =  0

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                                       Co + (0)₅ - 1  =  +2

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3 years ago
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378mL

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Next, we shall convert the pressure and temperature to appropriate units. This is illustrated below:

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Next we shall determine the volume of N2. The volume of N2 can be obtained by using the ideal gas equation as shown below:

PV = nRT

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