Answer:
65 mg
Explanation:
We are given the dosage per pound but have the weight of the dog in kilograms, thus we should convert the 29.5 kg to punds ( 1 pound = 0.454 kg):
29.5 kg x 1 lb / 0.454 kg = 64.7 lbs
So now can answer our question:
( 1 mg / lb ) x 64.7 lb = 64.7
rounding to 65 mg
To treat itchy skin in a dog that weighs 29.5 kg, the dog should be given 65 mg of Benadryl.
To calculate the mass of Benadryl to give to a dog that weighs 29.5 kg, we need to use the recommended dosage of 1 mg per pound. First, we convert the weight of the dog from kg to pounds by multiplying it by 2.2046. So, the weight of the dog is approximately 65 pounds. To find the mass of Benadryl, we multiply the weight of the dog in pounds by the recommended dosage. Therefore, the dog should be given 65 mg of Benadryl.
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Energy that is stored or released during a chemical reaction
b
Energy that is destroyed during a physical change
c
Energy that is released during a phase change
d
Energy that is created when a substance is being burned
Chemical energy is the energy that is stored or released during a chemical reaction. It exists within the chemical bonds of molecules and can be converted into other forms of energy.
Chemical energy refers to the energy that is stored or released during a chemical reaction. It is a form of potential energy that exists within the chemical bonds of molecules. When a chemical reaction takes place, these bonds are broken or formed, resulting in the release or absorption of energy.
For example, when a fuel such as gasoline is burned, the chemical energy stored in the hydrocarbon molecules is converted into heat and light energy. Similarly, during photosynthesis, plants convert sunlight into chemical energy in the form of glucose.
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Explanation:
Chemical energy
Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules. This energy is released when a chemical reaction takes place.
Usually, once chemical energy has been released from a substance, that substance is transformed into a completely new substance.
Answer:
See explanation below
Explanation:
To solve this problem, we need to use the expression of half life decay of concentration (or mass) which is the following:
m = m₀e^-kt (1)
In this case, k will be the constant rate of this element. This is calculated using the following expression:
k = ln2/t₁/₂ (2)
Let's calculate the value of k first:
k = ln2/2.7 = 0.2567 d⁻¹
Now, we can use the expression (1) to calculate the remaining mass:
m = 8.1 * e^(-0.2567 * 2.6)
m = 8.1 * e^(-0.6674)
m = 8.1 * 0.51303
m = 4.16 mg remaining
The half-life of gold-198 is the time it takes for half of it to decay. Given that the half-life is 2.7 days, and the period in consideration is 2.6 days, approximately half of the original amount of 8.1 mg, which is 4.05 mg, will remain.
This problem is related to the concept of half-life in radioactive decay. The half-life of a substance is the time it takes for half of it to decay. As the half-life of gold-198 is 2.7 days and we are considering a period of 2.6 days, which is almost one half-life, therefore, approximately half the substance should have decayed.
So, if you start with 8.1 mg of gold-198, at the end of one half-life (or close to it at 2.6 days), you should have approximately half of this amount remaining. Half of 8.1 mg is 4.05 mg, thus, approximately 4.05 mg remains after 2.6 days.
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The Ksp of FeCO₃ is 3.45x10-11 and the Ksp of CdCO₃ is 8.7x10-12.
Ksp is a mathematical expression used to predict the behavior of a saturated solution. It is an abbreviation of the term “solubility product constant”, and is derived from the thermodynamic equilibrium equation that exists between a solid and its dissolved ions in a solution. Ksp is used to predict the solubility of a given ionic compound, and is a measure of the maximum amount of solute that can be dissolved in a given solvent at a given temperature and pressure.
To initiate precipitation, the concentration of CO²⁻₃ must be greater than or equal to the solubility product of the least soluble salt, which is CdCO₃.
Therefore, the concentration of CO²⁻₃ must be greater than or equal to 8.7x10-12 M.
To learn more about Ksp
brainly.com/question/25134328
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Br-1
(NO3)-1
(SO3)2
b. 50.00 mL
c. 75.00 mL
d. 100.00 mL
e. 25.00 mL
Answer:
We need 75 mL of 0.1 M NaOH ( Option C)
Explanation:
Step 1: Data given
Molarity of NaOH solution = 0.100 M
volume of 0.150 M CH3COOH = 50.00 mL = 0.05 L
Step 2: The balanced equation
CH3COOH + NaOH → CH3COONa + H2O
Step 3: Calculate moles of CH3COOH
Moles CH3COOH = Molarity * volume
Moles CH3COOH = 0.150 M * 0.05 L
Moles CH3COOH = 0.0075 moles
Step 4: Calculate moles of NaOH
For 1 mol of CH3COOH we need 1 mol of NaOH
For 0.0075 mol CH3COOH we need 0.0075 mole of NaOH
Step 5: Calculate volume of NaOH
volume = moles / molarity
volume = 0.0075 moles / 0.100 M
Volume = 0.075 L = 75 mL
We need 75 mL of 0.1 M NaOH
Considering the formation of a chemical formula, the chemical formula is Li₂O.
Cations (positivelycharged ions) and anions (negatively charged ions) combine to form ionic compounds, which must be electrically neutral. Therefore, the cations and anions must combine in such a way that the net charge contributed by the total number of cations exactly cancels the net charge contributed by the total number of anions.
To form the chemical formula:
Lithium (Li) has a charge of +1, and oxygen has a charge of -2. Taking into account the above, the chemical formula is Li₂O.
Answer:
Lithium formula=Li+
Oxygen formula=O2(2-)
Explanation:
Quick note: These kinds of formula are really easy to google. Next time, google the chemical name, include the charge and include "formula" and you should get the answer.