How many moles of oxygen in magnesium hydroxide
Magnesium hydroxide is 54.87% oxygen by mass. How many grams of oxygen are in 175g of the compound? how many moles of oxygen is this.
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How Many moles of CO2 when 15.5 ml of a 3.00 M HCI reacts with excess CaCO3? The calcium carbonate in limestone reacts with HCl to procduce a calcium chloride solution and carbon dioxide.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 73.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
In an ore-mixing operation, a bucket full of ore is suspended from a traveling crane which moves along a stationary bridge. The bucket is to swing no more than 4 m horizontally when the crane is brought to a sudden stop.
A + B unstable helix (fast, k1 and k-1) Unstable helix stable double helix (slow, k2). write pre-equilbrium and steady-sate approximation.
Describing the tribe's history after contact, including major events and armed conflicts that may have been important to the history of the tribe in the present day.
What is the mol fraction Na2SO4 in a solution which is 11.5% by weight Na2SO4 (molar mass Na2SO4 = 142.06 g/mol and H2O = 18.016 g/mol)?
A 2.89 g sample of solid calcium carbide (CaC2) reacted with water to produce acetylene gas (C2H2) and aqueous calcium hydroxide. If the acetylene was collected over water at 16.3 C and 0.973 atm, how much acetylene was produced? Answer in units o
What is the percent yield of a reaction in which 262 g phosphorus trichloride reacts with excess water to form 102 g HCl and aqueous phosphorus acid (H3PO3)?
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