What is the empirical formula of a compound that contains 75% Ag and 25% Cl by mass? AGCL Calculate the approximate number of molecules in a drop of water with a mass of 0.10 g. 3 x 1021 molecules What is the percentage composition of CaSO4? 29.44% Ca‚ 23.55% S‚ 47.01% O What mass of calcium bromide is needed to prepare 150.0 mL of a 3.50 M solution? (Assume that the molecular weight of CaBr2 is 200.618 g/mol) 105 g Nitrous oxide (N2O)‚ or laughing gas‚ is commonly used as an anesthetic
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Molecular Formula | Key Concepts * Empirical Formula of a compound shows the ratio of elements present in a compound. * Molecular Formula of a compound shows how many atoms of each element are present in a molecule of the compound. * The empirical formula mass of a compound refers to the sum of the atomic masses of the elements present in the empirical formula. * The Molecular Mass (formula mass‚ formula weight or molecular weight) of a compound is a multiple of the empirical formula mass.
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Kant: The Humanity Formula "Few formulas in philosophy have been so widely accepted and variously interpreted as Kant’s injunction to treat humanity as an end in itself"(Hill‚ 38). Immanuel Kant’s views‚ as elucidated in his book‚ Groundwork of the Metaphysics of Morals‚ are based on the belief that "people count" by prohibiting actions which exploit other individuals in order for self-prosperity or altruistic ends. Ethics then‚ are confirmed by the dignity and worth of the rational agency of
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Computer The Determination of a Chemical Formula 1 Second‚ you will conduct a chemical reaction with the dried sample‚ which will produce elemental copper. By measuring the mass of copper that forms‚ you will have the necessary information to determine the moles of copper and chlorine in your sample‚ and you will be able to establish the proper chemical formula. OBJECTIVES • • • In this experiment‚ you will Ev al Determine the water of hydration in a copper chloride hydrate
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Excel Formulas and Functions Microsoft Office Excel is used to store data and crunch numbers in all types of businesses. The spreadhseet program’s power lies in Excel functions and Excel formulas‚ which allow all sorts of data analysis‚ from simple sums to standard deviations. Consider this Cheat Sheet your quick and easy Excel tutorial. Excel Functions You’re Likely to Use Some Excel functions apply to specific subject areas‚ but others are general and apply to all needs. The following list
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1 2 CHAPTER Distribution Customer Service and Logistics If you want a Coca-Cola‚ there’s usually one close by— no matter where you might be in the world. And that’s no accident. An executive for the best-known brand name in the world stated the objective simply: “Make Coca-Cola available within an arm’s reach of desire.” To achieve that objective‚ Coke works with many different channels of distribution. But that’s just the start. Think about what it takes for a bottle‚ can‚ or cup
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nitrogen gas?(2.8 mol) EMPIRICAL FORMULA WORKSHEET 1. What is the empirical formula for a compound which contains 0.0134 g of iron‚ 0.00769 g of sulfur and 0.0115 g of oxygen? (FeSO3) 2. Find the empirical formula for a compound which contains 32.8% chromium and 67.2% chlorine. (CrCl3) 3. NAME the compound which contains 0.463 g Tl (#81)‚ 0.0544 g of carbon‚ 0.00685 g of hydrogen and 0.0725 g of oxygen by finding its empirical formula. (TlC2H3O2)
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Crane design and testing Asia pacific university college of technology & innovation Asia pacific university college of technology & innovation SHAMINI A/P PATPANAVAN @ PATHMANATHAN SANGEETHA A/P KANARATANAM SHAMINI A/P PATPANAVAN @ PATHMANATHAN SANGEETHA A/P KANARATANAM Abstract This assignment requires to design a crane which will keep the boom at an angle of 45o‚ hold up a mass of 10 kg being loaded on the boom‚ and also to find an appropriate counter weight which
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Working out the Formula of Magnesium oxide Aims When magnesium is heated in air‚ it reacts with oxygen. During this oxidation reaction‚ magnesium oxide is produced. This increases the mass. If we know the mass of magnesium at the start‚ and the mass of magnesium oxide produced at the end‚ we can work out the mass of oxygen which has been combined with the magnesium. We can use these masses to work out the formula of magnesium oxide. Apparatus Googles
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Good language for analysis One thing that can really help us write analysis that is more clear‚ direct and precise‚ is to pay close attention to our use of language in each phrase and sentence. As I suggested in my discussion today‚ you need to imagine that you are the sports announcer‚ giving a play by play commentary‚ explaining to your audience what the writer is doing now. And so‚ if you really listen to a sports broadcast‚ you will notice that the announcers use specific verbs to describe
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