structure is derived. Firstly it is important to determine the percentage composition of elements to work out the empirical formula. The empirical formula was found to be C10H12O and the mass of the unknown was 148.09 m/z which when calculating the molecular weight of the empirical formula it did equal 148.09 g mol -1. This means that the empirical formula is also the molecular formula. As 12.01x10 carbons +1.008x12 hydrogens + 16= 148.09 09 g mol -1. From this knowledge the unknown molecule must include
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g / 1 mol = 102.5 g Determine the number of atoms that are in 0.58 mol of Se. 0.58 mol x 6.02 x 1023 atoms / 1 mol = 3.49 x 1023 atoms How many moles of barium nitrate contain 6.80 x 1024 formula units? 6.80 x 1024 formula units x 1 mol / 6.02 x 1023 formula units = 1.13 x 101 CP Chemistry Test Review (Unit 10) Complete the following reactions‚ balance the equations and identify the type of reaction. For single and double replacement reactions indicate
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Reference Guide & Formula Sheet for Physics #20 Page 1 of 8 Components of a Vector if V = 34 m/sec ∠48° then Vi = 34 m/sec•(cos 48°); and VJ = 34 m/sec•(sin 48°) #4 Weight = m•g g = 9.81m/sec² near the surface of the Earth = 9.795 m/sec² in Fort Worth‚ TX Density = mass / volume #21 Heating a Solid‚ Liquid or Gas Q = m•c•∆T (no phase changes!) Q = the heat added c = specific heat. ∆T = temperature change‚ K Linear Momentum momentum = p = m•v = mass • velocity momentum is conserved
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enlightens us on higher pleasure. “Who is Crazy?” brings to light that‚ the whole world is divided into factions‚ and each accuses the others of being crazy. But if there are no criteria by which to judge sanity‚ then who can decide? “The Only Peace Formula” speaks about the threats of war that are looming large‚ increasing crime rate the world over and the means to reduce it. “World of Modern Science” expounds the childishness of the scientific community in conducting space programs costing billions
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REVENUE ALLOCATION FORMULA IN NIGERIA INTRODUCTION Prior to the discovery of oil in Nigeria‚ other sectors of the economy thrived. Agriculture‚ for instance‚ was a major source of revenue for the Western Region. The Eastern Region that was less endowed devised other sources of revenue. All this has however changed since the discovery of oil in the country. This has led to the demise of the other productive sectors of the economy. In fact‚ Nigerians are poorer today than they were in the pre-oil boom
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Conversion ratio# of shares that can be exchanged for one convertible bond | Par value of bond/ conversion price | Conversion pricePrice per share that determine the number of share you will received | Par value of bond/conversion ratio | Conversion value – an indication of what a convertible issue would trade for if it were priced to sell on the basis of its stock value. | Conversion ratio x market price of stock | Conversion premium ( in $)It is difference between the market price of the
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* O C E / 2 6 2 9 0 * Data‚ Formulae and Relationships Booklet (Revised Version 2.1) GCE Advanced Level and Advanced Subsidiary Physics A Physics units G481‚ G482‚ G484‚ G485 Instructions to Exams Officer/Invigilator • Do not send this Data Sheet for marking; it should be retained in the centre or destroyed. These data‚ formulae and relationships are for the use of candidates following the Physics A specification. Clean copies of this booklet must be available in the examination room‚ and must
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------------------------------------------------- Formulae Sheet 1. Return on Assets = Net Profit before Interest and Tax / Average Total Assets 2. Average Accounts Payable settlement = Average Accounts Payable / Credit purchases x 365 3. Asset turnover ratio = (Sales / average Total Assets) x 100 4. Asset turnover period = (Average total assets / Sales) x 365 5. Return on Equity (Return on Shareholder’s’ Funds) = Net Profit after Tax and preference dividends / Average ordinary
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Independent sample T-test: * unknown variances * expected normal distribution * comparing means * (Als variantie bekend is dan z-test) * Analyse-compare means-independent sample t-test‚ define groups * H0: RateMen=RateWoman (do not differ) * Ha: Ratemen≠RateWoman (RateMen differs from RateWoman) * H0: u1 = u2 vs. HA: u1 ≠ u2 (this is two tailed ) also possible: * H0:uWomen≥ uMen vs. HA: uWomen0 OR d 6000 → Ha: p > 0‚5 of Ha≠0‚5 indien dubbelzijdig wilt
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ADVANCED SUBSIDIARY GENERAL CERTIFICATE OF EDUCATION ADVANCED GENERAL CERTIFICATE OF EDUCATION MATHEMATICS LIST OF FORMULAE AND STATISTICAL TABLES (List MF1) Pure Mathematics Mensuration Surface area of sphere = 4π r2 Area of curved surface of cone = π r × slant height Trigonometry a2 = b2 + c2 − 2bc cos A Arithmetic Series un = a + (n − 1)d Sn = 12 n(a + l) = 12 n{2a + (n − 1)d} Geometric Series un = arn−1 a(1 − rn ) 1−r a S∞ = for | r | < 1 1−r Sn = Summations n ∑ r2 = 16 n(n + 1)(2n
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