Question3: Experiment 3 The unknown acid sample was 1 • Monoprotic Acid Trails Initial NaOH solution (mL) final NaOH solution (mL) The volume of NaOH to titrate the acid (mL) Amount of Unknown Acid sample 1 (g) The moles of the Unknown Acid (mol) Molar mass of the Unknown Acid (g/mol) A 3.38 28.31 24.93 0.150 0.0026 57.69 B 0.18 29.32 29.14 0.175 0.0029
In this lab, we soaked a gummy bear in water for twenty four hours to see the effects osmosis would have on it. When we got our gummy bear we would take its measurements and soak it in water. After twenty four hours we would take it out and record the measurements again and find the percent change. The question that we addressed in this lab was, what would happen if you soaked a gummy bear in water for twenty four hours? I hypothesized that after this time the gummy bear would increase in size.
On January 18, 2015, the New England Patriots and the Indianapolis Colts played in the AFC Championship game in a chilly temperature of 51°F. The Patriots were accused of cheating when, at half time, 11 of their 12 game balls were found to be two pounds psi less than the regulation size of 12.5 to 13.5 psi. Although the balls are gauged 2 hours and 15 minutes prior to the game, they are returned to the teams before the game started. Based on extensive research and data, the Patriots’ balls were tampered with prior to the game. Objects with gaseous interiors have a tendency to decrease in pressure when exposed to cold temperatures but the decrease will only be minor.
In this lab I concluded that the mass (kg) was the independent and the weight (N) was the dependent, because when you read the spring scale it depended on the amount of mass that was hanging from the spring scale. When I made my graph the slope relation was the amount of mass compared to the amount of weight. The more mass we put on the more it weighed. If we use the equation to find slope (Y2-Y1)/ (X2-X1), using my first point on scale 1(2, 0.2), and my last point of scale 1 (0.16, 0.02). I get 0.2- 2= -1.8 divide by 0.02- 0.16= -0.14 and get a slope of 12.8.
5. 150 ml of the solution in beaker A was added to the separating funnel with 10ml of chloroform. The funnel was gently shaken and vented to release the pressure. This was done five times. 6.
If the current pressure is not change this will
The desired outcome will be having the patient with clear lung sounds, edema free and denies dyspnea on exertion. To achieve these outcomes we need to monitor body weight daily, ? changes in bodyweight reflect changes in body fluid volume? (Methney, 2010). Mean time we need to monitor extension and location of edema?
For this experiment, two different circuits were created and measured for their change in output voltage. It was concluded that the voltage across the circuit decreased when a resistor was place in series with a voltage divider. INTRODUCTION Pressure and displacement measurements are fundamental tools when dealing with the human body, specifically the
. 0.2 points Question 6 Mark all sentences that are written correctly. How will this medication affect her blood pressure?
One scientist decides to take upon the task to figure out what is going on and dissects his own brain. Through the scientific method, the scientist discovers that because the atmospheric pressure rising that the air passing through their brain is slower. The slower the air passing through their brain, the slower their brains perform. This discovery led to the
Research Paper I chose air pressure for my science fair project. Air pressure is all of the weight of the atmosphere pressing onto the earth. The force is molecules colliding with each other and other things, such as your arm, the ground, or even a tree. The air molecules are constantly bouncing off each other and everything else around them. When the molecules are spread out, the air pressure is low, and when the molecules air packed tightly, the air pressure is high.
Subglottic pressure:23 The force of the expiratory blast of air, as well as determining the volume of sound, also influences slightly the pitch. Increase in air pressure in associated with increase in pitch, when it is increased in volume. It has been suggested that in the production of very high notes the false cords come into contact with the upper surface of vocal cords and this raise the frequency of their vibrations. Theories of mechanism of vocal fold vibration The vocal fold vibration is essential to voice production was demonstrated in the first canine vocal fold experiment performed by Ferrein in 1974.
IV. Data and observations Mass of beaker (g) 174.01 Mass of beaker + NaOH pellets (g) 174.54 Mass of NaOH pellets 0.53 TRIAL 1 TRIAL 2 Mass of potassium acid phtalate (KHP) (g) 0.15 0.15 final buret reading (ml) 30.75
Bernoulli 's principle states that the pressure of a moving gas decreases as its velocity
Introduction This essay will reflect on my personal experience, skills, and knowledge gained from my studies and practice of undertaking blood pressure (Bp) whilst completing my professional placement. Bp may be defined as a force of blood against vessel walls in the body, consisting of systolic and diastolic pressure measured in millimeters of mercury. (Waugh and Grant, 2016) Systolic pressure occurs when the hearts left ventricle contracts and forces blood into the aorta causing a heightened atrial pressure, while diastolic pressure refers to complete cardiac diastole, this is when the aortic valve closes and pressure is at its lowest between beats, blood moves into smaller corresponding vessels and the heart rests.