Answer:
0.2558 g
Explanation:
1.- In titration, since you have the concentration and the volume of the titrant and the aliquot that you take, you can use the formula C1 V1 = C2 V2.
2.- To obtain C2 = C1 V1 /V2
Substitution C2 = (0.0149 M ) (9.75 ml) /25 ml = 0.0058 11 M
3.- This concentration is the number of moles that you would have in 1 L but you dissolve your tablet in 250 ml, so a rule of three.
4.- 0.005811 moles - 1 L
x - 0.250 L
X= 0.250 L x 0.005811 moles / 1L = 0.00145275 moles
5.- using your molecular weight, you can obtain the grams with another rule of three.
0.00145275 moles - x
1 mole - 176.12 g
x= 176.12 g x 0.00145275 moles / 1 mole = 0.2558 g
Hope this was useful
Blood PC02 may be measured by using direct spectrophotometer
Explanation:
Blood gas analysis or arterial blood gas (ABG) test is done to determine blood pH and the amount of oxygen and carbon dioxide dissolved in arterial blood.
Blood PCO2 is the partial pressure of carbon dioxide dissolved in the arterial blood.
ABG or oximetry test is done by using direct spectrophotometry in a spectrophotometer and gas analysis is done by calorimetric methods. Spectrophotmetry is highly used in Medicine to perform quantitative analysis of blood and its composition. The spectrophotometer measures the light intensity or wavelengths absorbed by the sample solution.
Blood PCO2 reflects the degree of exchange gases in and out of the lungs. An increase in PCO2 levels indicates respiratory illnesses like obstructive lung diseases or pulmonary edema; while a decrease indicates conditions like hypoxia, pulmonary embolism, hyperventilation etc.
The nurse should inject ophthalmic drugs into the lower conjunctival sac of a 6 year old child. The areas where eyedrops are injected are the sclera, upper conjunctival sac, or outer canthus.
The structures surrounding the eyes and acute or chronic eye disorders are treated using eye drops and ointments. As they are supplied directly to their site of action and are consequently more effective than drugs taken orally, they constitute the cornerstone of treatment for eye illness.
Topical eye treatment must be given the same priority as medications that are taken systemically in order for patients to get the most therapeutic benefit.
In order to properly administer topical medications, nurses, patients, and caregivers must have a solid awareness of their therapeutic effects and any potential side effects.
Applying eye drops and ointment is advised:
- At the right moment
- with the right force
- over the right path
- to the right person
- into the right eye
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Explanation:
photosynthesis is a process whereby the green plants receive the energy from the sunlight to produce glucose
