Edexcel GCSE Additional Science Unit ASCA: Additional Science Controlled Assessment Controlled Assessment Task C2 Valid from June XXXX to May XXXX Paper Reference(s) 5SA04/01 Chemistry Unit CCA: Chemistry Controlled Assessment Controlled Assessment Task C2 Valid from June XXXX to May XXXX Paper Reference(s) 5CH04/01 These controlled assessment tasks are valid from June XXXX to May XXXX. • For assessment in January XXXX centres must submit their moderation sample(s) by 10
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1311907DBT/FT/1A/01 | SYNOPSIS By gravimetric analysis‚ we are able to determine the amount of sulphate in barium sulphate quantitatively. We can do so by slowly adding dilute barium sulphate to an unknown sulphate solution that has been heated and acidified with concentrated hydrochloric acid slightly. A white precipitate will be yield from filtering the solution. It will then be washed with distilled water to rid any impurities and be put into an oven to dry. Once the
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help voiding (as described above). Instruct patient or caregiver on signs and symptoms of overdistended bladder (e.g.‚ decreased or absent urine‚ frequency‚ hesitancy‚ urgency‚ lower abdominal distention‚ or discomfort). Instruct patient or caregiver on signs and symptoms of urinary tract infection (e.g.‚ chills and fever‚ frequent urination or concentrated urine‚ and abdominal or back pain). Teach patient or caregiver to perform meatal care twice daily with soap and water and dry thoroughly.
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In Case Study #2 we look at Rivka a young physically active college student who participated in strenuous activities on a hot day without planning for proper hydration. In pronounced dehydration‚ hypotension can occur. How would this affect the glomerular filtration rate of the kidney? What actions by the juxtaglomerular apparatus would occur to restore GFR? The glomerular filtration rate would decrease with a decline in blood pressure. The juxtaglomerular apparatus participates in renal autoregulation
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elements except for nitrogen‚ oxygen‚ noble gases‚ silicon and halogens. It oxides them to their highest oxidation states(3) as acids with the formation of nitrogen dioxide for concentrated acid and nitric oxide for dilute acid. Chromium (Cr)‚ iron (Fe) and aluminium (Al) dissolve in dilute nitric acid‚ which the concentrated acid forms a metal oxide layer that protects the metal from further oxidation‚ and it is called passivation. Nitric acid can be made in laboratory or industrially. In laboratory
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a skilled nursing facility is caring for an 85-year-old woman who has had a fever of 102°F for 2 days. The nurse noted increased agitation‚ restlessness‚ and a decreased appetite. The patient has a Foley catheter in place. The physician ordered a urine analysis and the results are below. A diagnosis of a kidney infection was given Color: dark amber in color Appearance: cloudy with sediment Specific gravity 1
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ELECTROLYSIS Electrolysis decomposition of compound using electricity Electrolyte an ionic compound which conducts electric current in molten or aqueous solution‚ being decomposed in the process. Electrode a rod or plate where electricity enters or leaves electrolyte during electrolysis. Reactions occur at electrodes. Discharge the removal of electrons from negative ions to form atoms or the gain of electrons of positive ions to become atoms. Anode
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I am going to investigate osmosis when potato is placed in different concentrations of sucrose. I am aiming to witness osmosis in 5 different concentrations of sucrose. I will use 5 varying concentrations so that I have a wider spread to compare the results‚ and check that I don’t have any anomalies Prediction Osmosis is the process of diffusion of water molecules from a weaker solution into a stronger solution‚ through a semi permeable membrane. The tiny pores in the membrane
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indicators. Bladder cancer symptoms can include: blood in the urine (change in the color)‚ painful urination‚ urinating frequently‚ pain in the back and pain in the pelvis. If you have not seen blood in your urine‚ but have noticed some of the other signs it is still important to get checked by a doctor. There can be tiny traces of blood in the urine that you will not see. A urine test will check for minute traces of blood in the urine. The greatest risk factor for bladder cancer is from smoking
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body attempts to maintain equilibrium and the water is drawn out of the slugs body causing it to dry up and die. Diffusion is when the molecules in a cell are moving from a highly concentrated place to a low concentrated place. In for example‚ in air diffusers‚ the concentrated scent will release into the lowly concentrated air resulting in the air smelling nice. The process of plasmolysis is when the cell is losing water in a hypertonic solution. A hypertonic solution is when there is a greater concentration
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