element was isolated from 660 kg of the ore molybdenite. The percent by mass of this element in the ore was: a) 1.5% b) 6.6% c) 1.0% d) 1.5 × 10–4% e) 3.5 × 10–3% Ans: d) 1.5 × 10–4% Page: 1.3‚6 3. Which of the following metric relationships is incorrect? a) 1 microliter = 10–6 liters b) 1 gram = 103 kilograms c) 103 milliliters = 1 liter d) 1 gram = 102 centigrams
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the term given to the movement of air in and out of the lungs; the rate of pulmonary ventilation is defined as the tidal volume multiplied by the number of breaths taken per minute. Tidal volume is the volume of air breathed in or out during one cycle of quiet breathing. There are a few different factors that can affect the pulmonary ventilation rate but the most common and often most noticeable variation in pulmonary variation rate occurs during exercise. During normal quiet respiration‚ the average
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THE EFFECTS OF MOLECULAR WEIGHT ON THE RATE OF DIFFUSION OF SUBSTANCES PRINCESS AYNAH D. SANGGACALA Biology 101.1 Professor Christina A. Barazona September 15‚ 2014 THE EFFECTS OF MOLECULAR WEIGHT ON THE RATE OF DIFFUSION OF SUBSTANCES In partial fulfillment of the requirement For Biology 101.1 By Princess Aynah D. Sanggacala Professor Christina A. Barazona September 15‚ 2014 ABSTRACT The effect of molecular weight on
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The Effect of Molecular Weight on the Diffusion Rate in Substances Nadjah B. Hadji Amer Gladys A. Oliveros Rochelle R. Yaῆez Jan Remon B. Caliguid Group 2- Sec. W78-1 August 14‚ 2013 A scientific paper submitted in partial fulfilment of requirements in Biology 101.1 under Prof. Kimverly Hazel Coronel‚ 1st sem‚ 2013-2014 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using the agar-water gel test. The agar-water gel set up was composed of a six petri
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Title: Diffusion Rate of Methylene Blue on Agar Plates at Different Temperatures Abstract: Diffusion is the movement of particles from an area of high concentration to an area of low concentration wherein substances are independent‚ rapid and in random motion which frequently collide with each other in the sides of the container. This study aimed to assess the influence of temperature on the diffusion rate of methylene blue on agar plates. To determine the relationship between the two variables
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example of a heart rate is called resting heart rate. The resting heart rate of the body is the number of contractions of the heart that occur in a single minute while the body is at complete rest. The resting heart rate can differentiate upon age‚ gender‚ and health of a human. There will also be a difference in number upon the resting heart rate of athletes and a non-athletes. I calculated 68 beats per minute for my resting heart rate. Another example of heart rate is target heart rate. Mathematically
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The Effect of Molecular Weight on the Diffusion Rate of Substances Jesselyn P. Rodriguez Group 4 Section X-2L August 13‚ 2013 ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ABSTRACT The effect of molecular weight on the rate of diffusion of substances is tested using two tests: the glass tube test and the agar-water gel test. In the glass tube test‚ two cotton balls were soaked
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huge amounts of energy‚ and their molecules are spread out as much as possible. With very little pressure‚ when compared to liquids and solids‚ those molecules can be compressed. It happens all of the time. Combinations of pressure and decreasing temperature force gases into tubes that we use every day. You might see compressed air in a spray bottle or feel the carbon dioxide rush out of a can of soda. Those are both examples of gas forced into a smaller space than it would want‚ and the gas escapes
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Business studies. Activity 3 – TESCO Customers have a range of different expectations when they use Tesco’s. For example * good value products * rapid responses to enquiries * clear honest and detailed information * Information about suitable products * Care and attention both with the customers‚ and the products. * After sales care Good value products Good value products‚ means that the product is worth the money paid. This is the minimum expected from any business
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In my investigation I am going to establish the effect of changing light intensity on the rate of photosynthesis. What is Photosynthesis? Photosynthesis is how plants get their food. The reason why plants have leaves‚ roots or being green is all linked to photosynthesis. In photosynthesis‚ a plant takes carbon dioxide from the air and water from the soil and uses the light from sunlight to turn them into food. Photosynthesis occurs only in the presence of light‚ and takes place in the chloroplasts
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