Chapter 1, Problem 10P

Yazid wants to make compost from leaves, sawdust, and food scraps. Leaves have 2% N, C:N 22.5, and MC 77%. Sawdust has 30% C, C:N 300, and MC 20%, whereas food scraps have 2% N, C:N 20, and 50% MC. If the amount of leaves used is 15 kg, determine how much food scraps and sawdust should be added to get a compost mixture with an ideal ratio of C:N 30:1 and moisture content 60%?

A student extracted starch from a 5.0g sample of banana. The total volume of banana extract she collected was 22.5ml . The weight of the filter paper alone was 0.172g. The wet weight of the filter paper with starch was 1.158g. The dry weight of the filter paper with starch was 0.894g.   How much absorption you would expect to see for cuvette that contains 0.75mg of glucose? A) 0.18 B) Cant answer that question without knowing how much of the banana extract was used C) 0.468 D) 0.367

What is the mass of 15m^3 of methylated spirit whose relative density is 0.8?

QUESTION 7 (Start on a new page.) The airbags in motor vehicles contain the compound sodium azide (NaNs). When a car crashes into an object, the compound decomposes and the nitrogen inflates the airbag. The balanced equation for the reaction is as follows: NaN(s) → 2Na(s) + 3N2(g) In one such decomposition, 2,53 x 10° molecules of nitrogen are generated. Calculate the: 7.1 Number of moles of NaN(s) that decomposed 7.2 Volume of N2(g) produced Assume that the reaction occurs at standard pressure. QUESTION 8 (Start on a new page.) Aluminium sulphate is used as a coagulant in water purification. It reacts with sodium hydroxide to form aluminium hydroxide which drags the impurities as it settles. The balanced equation for the reaction is: Al2(SO4)3(aq) + 6NaOH(aq) → 2Al(OH)3(s) + 3Na2SO4(aq) A chemist at a water purification plant adds 700 g of Al2(SO4)3 to a sample of water. 8.1 Calculate the maximum mass of Al(OH)3 that can be produced from this mass of Al2(SO4)3. (4) E [7] (5) The…

Morphine is a common pain killer. The prescription is 80 mg/day. The intravenous vial has morphine concentration of 8.8 mg / 5 cc. We should deliver _____ cc/hour.     Can you please show step by step how you would arrive at the answer?

This is Engineering Data Analysis

Here is a simple example. The inhabitants of a small island begin exporting beautiful cloth made from a rare plant that grows only on their island. Seeing how popular the small quantity that they export has been, they steadily raise their prices. A clothing maker from New York, thinking that he can save money by "cutting out the middleman," decides to travel to the small island and buy the cloth himself. Ignorant of the local custom of offering strangers outrageous prices and then negotiating down, the clothing maker accepts (much to everyone's surpise) the initial price of 400 tepizes/m². The price of this cloth in New York is 120 dollars/yard². Part A If the clothing maker bought 500 m² of this fabric, how much money did he lose? Use 1 tepiz = 0.625 dollar and 0.9144 m = 1 yard. Express your answer in dollars using two significant figures. ▸ View Available Hint(s) ΜΕ ΑΣΦ ? dollars

Hello,  I am having an issue with figuring the following:  For pH 9.5 I am getting 3.16 x 10 ^-10. Is this correct? Thank you   Solution X has a pH of 9.5, and solution Y has a pH of 7.6.?   What is [H3O+] in Solution X?   What is [H3O+] in Solution Y?

Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of red gold weighs 8.50 g and has a volume of 0.583 cm. Gold has a density of 19.3 g/cm³ and copper has a density of 8.96 g/cm³. Calculate the percentage by mass of each metal in the jewelry. Assume the total volume of the jewelry is the sum of the volumes of the two metals it contains. % gold: соррer: Pure gold is defined as having 24 carats. When mixed in an alloy, the carats of gold are given as a percentage of this value. For example, a piece of jewelry made with 50% gold has 12 carats. State the purity of this piece of red gold jewelry in carats. carats purity: PrtSc Insert De F9 F10 F11 F12 F8 F7 & Ba 5 8. Y 11 H J K MN IN