CHEMISTRY 111 Practice Exam 2 1. How many moles of H+(aq) ions are present in 1.25 L of 0.75 M nitric acid? A. 0.60 mol B. 0.75 mol C. 0.94 mol D. 1.7 mol E. 1.9 mol 2. Which of the following will be least soluble in water? A. potassium sulfate‚ K2SO4 B. ammonium nitrate‚ NH4NO3 C. chloromethane‚ CH3Cl D. calcium chloride‚ CaCl2 E. ethanol‚ C2H6O 3. Select the precipitate that forms when the following reactants are mixed. Mg(CH3COO)2(aq) + LiOH(aq) A. LiCH3COO B.
Premium Carbon dioxide Nitrogen Hydrogen
Growth of fertilizer industry in India From a nation dependent on food imports to feed its population‚ India today is not only self--sufficient in grain production‚ but also has a substantial reserve. The progress made by agriculture in the last four decades has been one of the biggest success stories of free India. Agriculture and allied activities constitute the single largest contributor to the Gross Domestic Product‚ almost 33% of it. Agriculture is the means of livelihood of about two-thirds
Premium Fertilizer Nitrogen
Fireworks! Have you ever been to an aerial fireworks show at an amusement park‚ baseball game‚ Fourth of July celebration‚ or on New Year’s Eve and wondered about how all the impressive colors and sounds are produced? People everywhere enjoy the fantastic explosions and the brilliant light displays of fireworks. However‚ these spectacles are much more than just a form of entertainment. Each firework launched into the sky is a precisely formed assembly of chemicals and fuel‚ carefully calibrated
Premium Oxygen Chlorine Fireworks
SYNT m o d u l a r · l a b o r a t o r y · p r o g r a m · i n · publisher: H. A. Neidig c h e m i s t r y 738 organic editor: Joe Jeffers Copper-Catalyzed Oxidation of Benzoin to Benzil prepared by Carl T. Wigal‚ Lebanon Valley College PURPOSE OF THE EXPERIMENT Oxidize benzoin to benzil using ammonium nitrate and copper(II) ion as a catalyst‚ monitoring the reaction by thin-layer chromatography. Characterize the product using melting point measurement and infrared spectroscopy. EXPERIMENTAL
Premium Acetic acid Laboratory equipment Nitrogen
Hydrogen and the Noble Gases Hydrogen is the chemical element with atomic number 1. It is represented by the symbol “H”. It is an odorless‚ nonmetallic‚ tasteless and highly explosive gas. Hydrogen is the lightest and most abundant chemical element in the universe. It forms 1- ions when combined with metals‚ and 1+ ion when combined with non-metals to form acids. Hydrogen is “the fuel of life”; without it to combine with oxygen we would not have water. Water is made of two parts hydrogen
Premium Oxygen Chemical element Helium
The effect of salt concentration on grass growth Abstract Our aim was to test the effect of different salinities on the growth of plants which what we did was measured different amounts of salt dissolved into 2 litres of water‚ watered the plant once with the salt water then for 9 days with pure ware. I found with my investigation that the less the salt‚ the more the growth of the plant. My aim was achieved by measuring the 5 fastest geminating (out of 20) and to measure the differences in growth
Premium Soil Water Plant
Determine Value of R Lab 3 Report must be typed and submitted to Turn it in by Wednesday Sept 24th 11:59pm. Title +1 Purpose +1 Procedure +2 Data Table +4x Balanced Chemical Equation +2 Calculations Calculate R for each trial and then average. +5 Calculate % error +2 Type and Answer Discussion Questions +8 Additional Questions for Calculating the R Lab 1. One mole of hydrogen gas has a mass of 2.02 g. Use your value of molar volume to calculate the mass of one Liter of
Premium Hydrogen Nitrogen Carbon
Type of Production The type of production will be Tertiary. Tertiary production is the products being sold by traders. And that’s exactly what I am doing with my business‚ I am selling the products which are games and gaming consoles to customers. The Three Types Of Production Are; Primary Production Secondary Production Tertiary Production Primary Production – is the extraction of basic materials provided by nature‚ either above or below the earth surface. the extractive industries
Premium Earth Raw material Material
History of Explosives and Blasting In the US and Canada alone‚ blasters use more than 6 billion pounds of explosives and 75 million detonators per year. Coal mining accounts for two-thirds of consumed explosives of which more than 80% of it is ANFO. Today‚ sophisticated explosive materials and new technologies are being utilized to improve the quality of life for all of us. Computers are used to: drill‚ log and monitor blastholes — automate blending and delivery with bulk trucks — determine bench
Premium Nitrogen
Homework 2.1.2.0 1. In addition to clay minerals‚ what other soil constituents contribute to total CEC? The Organic Matter present in the soil. 2. How does CEC buffer nutrient concentration in soil solution? CEC will exchange ions continuously between the solution concentration until both of the concentration has neutralized. 3. Why does anion adsorption appear to be of little importance in most agricultural soils? Why are AECs of ultisols usually greater than those of mollisols?
Premium Soil Electric charge Chemistry