A urinalysis is where a sample of a person’s urine is taken and a dipstick in dipped into the urine to test for many different elements; these can include leukocytes‚ blood‚ protein‚ sugar‚ ketones‚ ph‚ nitrites‚ bilirubin and ascorbic acid. These elements can help in diagnoses for bladder or kidney infections‚ diabetes‚ dehydration and preeclampsia. In antenatal care a urinalysis is performed at the very first visit with a dipstick and the sample is then referred to a pathology laboratory to be
Premium Obstetrics Pregnancy Urine
The correct symbol for the ion formed by nitrogen is: A. N2- B. N3- C. N3+ D. N2+ E. N- 4 Which of the following combinations of formula and name is incorrect? A. hydroxide ion = OH ̅ B. nitrate ion = NO3 ̅ C. sulfide ion = SO32 ̅ D. nitrite ion = NO2 ̅ E. sulfate ion = SO42 ̅ 5 How many molecules are in 0.25 mole of Na2O? A. 4.5 × 10(23) B. 0.75 C. 1.5 × 10(23) D. 4.2 × 10( ̅ 25) E. 0.25 6 Calculate the molar mass of Na2SO4. A. 94.05 g/mol B. 71.06 g/mol C. 142.05 amu
Premium Oxygen Ion Atom
The addition of 6M acetic acid‚ HC2H3O2‚ acidified the solution‚ as confirmed by the litmus test. The newly acidic solution reacted with potassium nitrite‚ KNO2‚ reducing the nitrite to nitrogen dioxide as expressed by: I-(aq) + KNO2 → KI(aq) + NO2(g). The liberation of iodine in the reaction resulted in a brownish change in colouration of the solution (SUNY Chemisty‚ 2005). The failure of the sample to turn a reddish-brown
Premium Chemistry Ion Solubility
Nitrate Paper For Mrs. Williams 4th Period NO3- or otherwise known as Nitrate‚ not to be confused with Nitrite‚ is located in period 2 group 15. Nitrate is an element that can not be observed by any of the senses other than sight and touch because it is known to be odorless and tasteless. Nitrate starts within the earths soil but filters into water and plants when it is mixed with rain water that is either cycled back into larger bodies of water or into the plants that take the water from the soil
Premium Water Oxygen
I cycled the tank during weeks 3 to 7. First‚ there was ammonia‚ then nitrite‚ and then nitrate. Currently‚ the ammonia and nitrite levels of my tank are 0. Survival of the Fittest Discussion Forum 100.00 % (A) Speciation and Evolution Discussion Forum 100.00 % (A) HIV and AIDS Discussion Forum 100.00 % (A) Angiosperm vs. Gymnosperm Discussion Forum 70.00 % (C) Animal Evolution Discussion Forum 100.00 % (A) Survival of the Fittest Discussion Forum 100.00 % (A) Speciation and Evolution
Free Evolution Extinction Animal
Data Table: Record your observations in the following table Na3PO4 NaI Na2SO4 NaCl NaHCO3 Na2CO3 NaOH Co(NO3)2 Precipitated a blue color NR NR NR Turned a milky purple color Precipitated a light purple color Precipitated a light blue color Cu(NO3)2 Precipitated a light blue color Precipitated a dark amber color NR NR Precipitated a light blue color Precipitated a light green color Precipitated a light blue color Fe(NO3)3 Precipitated a light milky yellow color Turned a dark black
Premium Sodium chloride Solubility Chemistry
distance between where a shot is fired and its target. Looking at the patterns of powder residue and shot patterns can do this. 4. What is the Greiss Test? The Greiss Test is a test that detects the residuals of gunpowder or explosives. It detects nitrite ion. 5. When a bullet is retrieved‚ how is it marked for identification purposes? What should be avoided? When a bullet is retrieved‚ it is marked with the investigators’ initials at the tip or base. It is very important that the initials do not cover
Free Firearm Critical thinking Gun
Polyacrylonitrile (PAN) is a fibre commonly used as padding and other fabrics. Under thermal decomposition theoretically 50% of the mass of this polymer becomes available as HCN. The theory being questioned was whether it is the cyanide or the other nitrites released from the burning of PAN that result in incapacitation of fire victims. Seven Cynomologus monkeys were exposed to different atmospheres. Three were exposed to the product of the pyrolysis of PAN at 300‚ 600 and 900 degrees Celsius and the
Premium Atmosphere Causality Stanford prison experiment
1 Alcohol is the most prevalent drug of abuse worldwide. Discuss the major‚ long-term physiological effects of addiction to alcohol. Be sure to include a discussion of the dangers of withdrawal. Alcohol is very toxic to the body. When a person consumes a certain amount of alcohol the body becomes toxic and their mental status is impaired and there judgment and reasoning is unstable. This causes a person to take careless and or reckless actions outside of their norm. After these abnormal actions
Premium Drug addiction Addiction
solution with calcium chloride‚then evaporate the ether by steam bath and cool down. The product is methyl benzoate. Pour methyl benzoate into cool concentrated sulfuric acid and keep the temperature below 10oC. Add concentrated sulfuric acid and nitrite acid to the mixture and raise temperature to room temperature. Pour the solution into ice bath‚ filtrate the solution wash by methanol. Finally crystallization the product. Chemical equations: Results: Percent Yield and the results for esterification:
Premium Sulfuric acid Ester Ammonia