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nikitadnepr [17]
3 years ago
11

A children's liquid cold medicine has a specific gravity of 1.23. If a child is to take 1.5 tsp in a dose, what is the mass (in

grams) of the cold medicine?
Chemistry
2 answers:
oksano4ka [1.4K]3 years ago
4 0

1 tsp contains medicine = 5 mL  

So,1.5 tsp contains medicine = 1.5 tsp x 5ml  

                                              = 7.5 ml  

Specific gravity = 1.23 g ml⁻¹  

Mass of the cold medicine= 7.5 × 1.23  g

                                             = 9.2 g

So, mass of the cold medicine was found to be 9.2 g.

So, a children's liquid cold medicine that has a specific gravity of 1.23. If a child take 1.5 tsp in a dose, the mass (in grams) of the cold medicine was found to be 9.2 g .

julia-pushkina [17]3 years ago
3 0

Assume 1 tsp is approximately can hold 5 mL liquid.

Given the dose of medicine = 1.5 tsp

Converting 1.5 tsp to mL:

1.5 tsp * \frac{5 mL}{1 tsp} = 7.5 mL

Given the specific gravity of the medicine = 1.23

That means density of the medicine with respect to water will be 1.23

As the density of water is 1 g/mL

We can take density of the medicine to be 1.23 g/mL

Calculating the mass of medicine in grams:

7.5 mL * \frac{1.23 g}{mL} =9.225 g

9.225 g medicine is present in one dose.

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2[H⁺] + [O²⁻] → H₂O

Explanation:

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A sample of water and alcohol are mixed. What method should be used to separate them?
Margaret [11]

Fractional Distillation is the answer


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What is the mass of ether(0.71) which can be put into a beaker holding 130ml
UkoKoshka [18]
D=m/v    ⇒ m=d*v

d=density
m=mass
v=volume

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Which type of weathering helped to form barrier islands
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A stock solution has a concentration of 1.5 M NaCl and is diluted to a 0.80 M solution with a volume of 0.10 L. What volume of t
ioda

Answer:

0.053 L  is the volume of concentrated solution that was used

Explanation:

Let's determine the answer of this, by rules of three.

There is also a dilution formula.

Molarity is a sort of concentration that indicates the moles of solute in 1L of solution.

In 1 L of concentrated solution, there are 1.5 moles of NaCl

In 1 L of diluted solution, there are 0.80 moles.

The volume for the diluted solution is 0.10L

The rule of three will be:

1L of solution has 0.80 moles of solute

Then, 0.10L of solution must have (0.1 . 0.8)/1 = 0.08 moles

This moles came from the concentrated solution, and we know that in 1L of this solution we have 1.5 moles. Therefore the rule of three will be:

1.5 moles are in 1L of solution

0.08 moles were in (0.08 . 1L / 1.5) = 0.053 L (This is the volume of concentrated solution that was used)

Dilution formula is: M conc . Vol conc = M diluted . Vol diluted

1.5 M . Vol conc = 0.80 M . 0.10L

Vol conc = 0.80 M . 0.10L / 1.5M = 0.053L

4 0
3 years ago
Read 2 more answers
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