1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
How many valence electrons does an atom of al possess?
Irina18 [472]

Answer:

3

Explanation:

Third element to right

3 0
3 years ago
Consider the following equilibrium systems: A⇌2B ΔH o =20.0 kJ/mol Reaction 1 A+B⇌C ΔH o =−5.4 kJ/mol Reaction 2 A⇌B ΔH o =0.0 k
galina1969 [7]

Answer:

Reaction 1: Kc increases

Reaction 2: Kc decreases

Reaction 3: The is no change

Explanation:

Let us consider the following reactions:

Reaction 1: A ⇌ 2B ΔH° = 20.0 kJ/mol

Reaction 2: A + B ⇌ C ΔH° = −5.4 kJ/mol

Reaction 3: 2A⇌ B ΔH° = 0.0 kJ/mol

To predict what will happen when the temperature is raised we need to take into account Le Chatelier Principle: when a system at equilibrium suffers a perturbation, it will shift its equilibrium to counteract such perturbation. This means that <em>if the temperature is raised (perturbation), the system will react to lower the temperature.</em>

Reaction 1 is endothermic (ΔH° > 0). If the temperature is raised the system will favor the forward reaction to absorb heat and lower the temperature, thus increasing the value of Kc.

Reaction 2 is exothermic (ΔH° < 0). If the temperature is raised the system will favor the reverse reaction to absorb heat and lower the temperature, thus decreasing the value of Kc.

Reaction 3 is not endothermic nor exothermic (ΔH° = 0) so an increase in the temperature will have no effect on the equilibrium.

8 0
3 years ago
Use the equation 2cu+o2=2cuo to find how many miles of copper react to form 3.64 mil cuo
Firlakuza [10]
<h3><u>Answer;</u></h3>

3.64 moles

<h3><u>Explanation;</u></h3>

From the equation;

2Cu + O2 → 2CuO

Mole ratio of Cu : CuO = 2: 2 equivalent to 1: 1

Moles of CuO = 3.64 Moles

Therefore;

moles of Cu will be ;

3.64 × 1 = 3.64 moles

Moles of Cu = <u>3.64 moles </u>

8 0
3 years ago
Read 2 more answers
An unknown element sample has 2 isotopes present. The first isotope has a mass of 6.017 amu and is
oksano4ka [1.4K]

Answer:

Calculating Atomic Mass

Change each percent abundance into decimal form by dividing by 100. Multiply this value by the atomic mass of that isotope. Add together for each isotope to get the average atomic mass.

Explanation:

have a nice day

8 0
2 years ago
There are a lot of empty _____ between the particles
Furkat [3]
There are a lot of empty space between the particles
5 0
3 years ago
Other questions:
  • Moles in 9.8g of calcium
    14·1 answer
  • Draw the Alkane Diagram for: <br> 1,3-dibutyl - 2,3,4 - trimethyl cyclooctane
    14·1 answer
  • A sample of iron has a volume of 12 mL. If the mass of this object is 94 g, what is the density of iron? Will it sink or float i
    15·1 answer
  • Steel is formed by Group of answer choices oxidizing some of the iron to iron oxides. combining iron, carbon and transition meta
    9·1 answer
  • Now can you answer pls
    9·1 answer
  • The sum of 32/4 and 3​
    15·2 answers
  • HELP THIS IS SCIENCE I HAVING TROUBLE
    13·2 answers
  • What is the balanced equation of Na2S+CuSO4=CuS+Na2SO4?​
    9·1 answer
  • Which choice is not a physical property of matter?
    5·1 answer
  • Which buffer can be suitable to prepare a solution that needs to be buffered at pH 4? Explain your
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!