Rearranging the above equation and substituting the given mass of X and O‚ we get: Thus‚ the atomic mass of X is 31 g/mol‚ which corresponds to phosphorus. Subchapter – Stoichiometry and Units 2. Nitrogen gas reacts with oxygen gas to form nitrogen dioxide. How many grams of nitrogen gas are needed to react completely with 8.0 g of oxygen gas? A. 7.0 g
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Effects of Phosphate and Nitrate on Pond Water By Claudia Phillips September 6‚ 2014 Block Two INTRODUCTION This lab was designed to study and observe the effects of phosphate and nitrate applied to pond water (1). Phosphorous‚ commonly used in fertilizers‚ is a necessary and vital element for life but can enhance the effects of eutrophication (the over-enrichment of nutrients in water) (2). Nitrate is a common source of food for most algae‚ but too much can make living conditions in
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The importance of chemical To the Farmers in Barangay Quiazan Lopez‚ Batad‚ Iloilo In partial fulfillment of the requirement in Science and Technology IV Presented to: Ms. Cherrie Caseno Presented by: Palmlody Capistrano IV-Diamond Feb 22‚ 2013 INTRODUCTION: Quiazan Lopez is a barangay of the Philippine municipality of Batad in the province Iloilo in Western Visayas which is part of the Visayas group of islands. Quiazan Lopez is one of the barangays which are in the outlying area
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created by vaporization of liquid which causes expansion of the liquid and therefore making a shock wave. Fireworks are also used in television quite frequently and have a lot of chemistry behind the scenes. This includes the different metals changing the color‚ the gunpowder to fuel the explosion‚ and finally the ingredients such as charcoal and potassium nitrate that are what make the reaction. Another common television art and magic illusion is invisible ink. Invisible ink was first used over
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The Effects of Organic and Inorganic Fertilizer To the Growth of Mongo‚ Tomato‚ And Bell Pepper Seeds De La Salle Lipa Integrated School LS 210 School Year 2010-2011 Submitted by: Group 8 Moncada‚ Angelica Cabral‚ Lance Jeru Pena‚ Marlon Angelo Resurreccion‚ Ronald II Santiago‚ Romar Danielle TABLE OF CONTENTS Acknowledgement ……………………………………………………… i Dedication ……………………………………………………………… ii Abstract ………………………………………………………………….. iii I. Introduction ………………………………………………… 1-2 II.
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The majority of us are not experts in nutrition. For example‚ my expertise lies in the realm of the internet. I am a web developer/programmer. It is no secret that in order to enjoy life and perform well in my profession‚ I need to fuel my body. Unfortunately‚ when it comes to nutrition‚ I have skimped and assumed for way too long. I have attempted to eat healthy yet‚ I have also filled my body with plenty of "low grade" fuel. The result over time‚ I began to experience the physical consequences
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mol What is the empirical formula of a compound that contains 20% calcium and 80% bromine by mass? CaBR2 Calculate the number of hydroxide ions present in 0.250 mol of Ca(OH)2. 3.01x1023 |What is the volume occupied by 0.25 moles of Nitrogen at STP? | | | 5.60 What is the molecular formula for a compound with a molar mass of 26 g/mol and an empirical formula
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1) A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression‚ the gas pressure was __________ atm. A) 4.00 B) 2.00 C) 1.00 D) 8.00 E) 16.0 2) A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is __________ atm. A) 1.5 B) 7.5 C) 0.67 D) 3.3 E) 15 3) A balloon originally had a volume of 4.39 L at 44 °C and a pressure of 729 torr. The
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me in this project. INTRODUCTION A chemical fertilizer is a substance applied to different soils or directly onto plants to provide nutrients optimal for their growth and development. The essential nutrients contained in these fertilizers are nitrogen‚ phosphorous‚ and potassium (NPK)‚ as well as other nutritional substances in smaller amounts all presented in a form that can easily be absorbed and metabolized by plants. Chemical fertilizers have become a staple in many yards and gardens‚ and
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crucible might have reacted with the magnesium ribbon when exposed to such high amounts of energy. Another drawback was that the magnesium was burnt in air and not in proper oxygen. The magnesium might have reacted with other gases in the air‚ like nitrogen to magnesium nitride. In the allotted time‚ there were six different values taken. The time given was sufficient to carry out the whole experiment properly LIMITATION: The magnesium could be completely cleaned with sand paper to
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