] Christine and Bradley invested equal amounts of money in a business. A year later, Christine withdrew $1,400 making the ratio of their investments 2:5. How much money did each of them invest in the beginning? Round to the nearest cent A
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- 3. (a) If 10.0 mL of H2SO4 (sp. Gr. 1.50, containing 48.7% of combined SO3 by weight) is diluted to 400 mL, what is the normality of the solution as an acid? (b) What volume of 6.00 M H2SO4 should be added to this in order to make the resulting mixture 1.00 N as an acid? FW's : H2SO4 = 98; SO3 = 80If 10.0 mL of H2SO4 (sp. Gr. 1.50, containing 48.7% of combined SO3 by weight) is diluted to 400 mL, what is the normality of the solution as an acid? (b) What volume of 6.00 M H2SO4 should be added to this in order to make the resulting mixture 1.00N as an acid? FW's : H2SC4 = 98; SO3 = 80A sample of medium-grade bituminous coal analysis is as follows: соmponent percent S 1 Ash 11 Water 3 The residuum is C and H in the mole ratio H/C = 9. Calculate the composition of the coal with the ash and the moisture omitted.
- (c) 1. THF H2C CEN 7. 2. H30* N(CH312 (d) 1. THF N' 2. H3O* 2016 Cmn LaungCI + а. (еxcess) H30* H С. H20 ОН b.Theresa Morgan, a chemist, has a 25% hydrochloric acid solution and a 70% hydrochloric acid solution. How many liters of each should she mix to get 945 liters of a hydrochloric acid solution with a 60% acid concentration? liters of 25% hydrochloric acid solution. liters of 70% hydrochloric acid solution.
- P 5 2 ✓ C Home Insert Draw Design 2- m. AutoSave OFF Paste Page 1 of 1 Calibri (Bo... v 12 B I 0 words V 4 ab X₂ V Layout A^ A x² A V References Aa ✓ Dv 1 V English (United States) Mailings Review View B-E 1¹E == number of moles of water = V Tell me A↓ Document2 3 Aa BbCcDdEe Normal AaBbCcDdEe No Spacing 4 + Aa BbCcDc AaBb CcDd E€ Aa Bb Heading 1 Heading 2 Title 5 In Part B of the experiment, a student mixes 30.0 mL of 1.1 M HCl(aq) with 30.0 mL of 1.000 M NaOH(aq) in a well-insultated calorimeter and observes that the temperature of the solution increases by 5.75 °C. These are similar conditions as the previous two problems. How many moles of water are formed? Styles Pane 6 Focus Dictate E mol |||| I Share Comments Sensitivity Editor + 220%Molten iron and carbon monoxide are produced in a blast furnace by the reaction of iron(lI) oxide and coke (pure carbon). The reaction is: Fe203 + 3 C ---> 2 Fe + 3 CO If 25.0 kilograms of pure Fe203 is used, how many kilograms of iron can be produced? Paragraph В I U v A + v の EQ Lato (Recom... 19px ... Record Video Add a File Record Audio -13°C 99+1- Calculate the humber of grams inone mole of Ca Soy.7 Hz0?