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When elemental boron, B, is burned in oxygen gas, the product is diboron trioxide. If the diboron trioxide is then reacted with a measured quantity of water, it reacts with the water to form what is commonly known as boric acid, B(OH)3. Write a balanced chemical equation for each of these processes. (Use the lowest possible coefficients. Omit states-of-matter in your answer.)
A gas occupies a volume of 480 mL at 127 degrees celsius and 148 mmHg. What mathematical expresssion will yield the correct volume at 177 degrees celsius and 400mgHg?
many household cleaning products contain oxalic acid h2c2o4 a diprotic acid with the following dissociation constants
Find the heat transferred (in kJ) when 5.55 L of ethylene glycol (d = 1.11 g/mL) in a car radiator cools from 40.0°C to 25.3°C.
How many grams of potassium chlorate decompose to potassium chloride and 638 mL of O2 at 128c and 752 torr? 2KClO3 --> 2KCl + 3O2
Draw Fischer projection formulas for the products likely to be obtained from the bromination of (Z)-2-pentene with Br2/acetic acid.
Calculate the pH and the pOH of an aqueous solution that is 0.035 M in HCl(aq) and 0.095 M in HBr(aq) at 25°C.
The uncertainty (standard deviation) in a single buret reading for a 50 ml buret is about +/- 0.02 ml. Two readings (initial volume and final volume) are required to deliver a specified volume or titrant.
lemon juice is a complex aqueous solution that does not freeze in ahome freezer at temperatures as low as -11 degc. at
The temperature of the calorimeter rose from 25C to 33.73C. If the heat capacity of the calorimeter was 9,630 J/C, what is the value of delta H for the combustion reaction in KJ/mol.
If a divalent metal ion is inserted in the center of the porphine ring, its charge will exactly balance the two negative charges of the dianion. Write a balanced equation for the reaction of tetraphenylporphyrin (which you can abbreviate as TPP) w..
Explain which of the subsequent amino acids when presented in a polypeptide chain interrupts the alpha helical arrangement
Identify the oxidizing and reducing agents for this equation. 2HNO3 (aq)+ 2S (s) + H20 (l) --> 2H2SO3(aq)+ 2N20(g)
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