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Your are asked to prepare a 0.8500 M solution of aluminum nitrate. You find that you only have 50.00 g of the solid.
If 2.500 L of the prepared solution is required, how much more aluminum nitrate would you need?
Sulfur-35 is used in some medical procedures. The physical half-life of S-35 is 87.2 days. If the effective half-life of S-35 in the body is 76.4 days, what is its biological half life
A 45.0 g block of aluminum initially at 28.0C absorbs 548 J of heat. What is the final temperature of the aluminum?
Calculate the equivalent number of moles of potassium permanganate? 3) calculate the clarity of the potassium permanganate solution?
25.0ml of a 4.21M HCL solution at 25.2C and 50.0ml of a 2.2M NaOH solution at 25.2C are reacted together to give a temperature of 44.1C.
A volume of 60.0 mL of aqueous potassium hydroxide(KOH)was titrated against a standard solution of sulfuric acid(H2SO4). What was the molarity of the KOH solution if 24.7 mL of 1.50M H2SO4 was needed? The equation is: 2KOH(aq)+H2SO4(aq)-->K2SO4(aq..
Calculate the number of liters occupied at STP: a. 1.7 mol H2(g); b. 1.8 x 10-2 mol N2(g); c. 2.5 x 10(2) mol O2(g)
Given this data for oxygen (O2), sketch its phase diagram. Label: solid, liquid, gas, normal boiling point, normal melting point, triple point, and critical point.
Calculate the amount of water (in grams) that must be added to each of the following substances to produce the indicated solution 8.10g of urea(NH2)2CO in the preparation of 21.8 percent by mass solution 30.4g MgCl2 in the preparation of a 4.8 per..
Draw the Lewis structure of the lowest energy imidazolium ion. This is the lowest energy product formed when imidazole is protonated.
Why we have a decrease in in the volume of the crude organic product during the extraction with HCl. What causes this decrease
Calculate the volume of water added to 0.410 L of 0.0340 M sodium hydroxide to obtain a 0.0110 M solution (assume the volumes are additive at these low concentrations).
what is the global pH change incurred after injection of the HCl? What would the pH change be if this same amount of 1.000 M HCl were put into a gallon of pure water?
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