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How many grams of Cl2 can be prepared from the reaction of 8.00g of MnO2 an 25.0 g of HCl according to the following chemical equation? MnO2 + 4HCL --> MnCl2 + Cl2 +2H20
40.0L of H2 at 850mmHg and 75.5 degrees celsius is reacted with an excess of I2. What mass of HI is formed? H2(g) + I2(g)--> 2HI(g)
a gas occupying a volume of 940. ml at a pressure of 0.970 atm is allowed to expand at constant temperature until its
The solubility of an ionic compound M2X3 (molar mass = 320. g) is 2.1 multiplied by 10-17 g/L. What is Ksp for the compound?
What concentrations of [K2HPO4] and [KH2PO4] will you need to make the total concentration 0.50 M? 3.) How many moles of K2HPO4 and KH2PO4 will you need? 4.) What mass of K2HPO4 and KH2PO4 will you need?
the reaction 2ararrbc has a kc of 0.2. the reaction is commenced with initial con- centrations a 0.2 m b 0.2 m and c
MnSO4 (aq) is converted to MnO2(s) in a basic medium as oxygen gas is converted to hydroxide ion. In this case, is the sulfate ion a spectator ion
A sample of gas is confined to a cylinder housed with a movable piston. The gas occupies a volume of 1.8 L at 1.8 atm and 25°C. Calculate the volume of the gas sample if the pressure is increased to 8.6 atm at constant temperature.
The Carbohydrate content of a glycoprotein is determined to be 12.6, 11.9, 13.0, 12.7, 12.5 g of carbohydrate per 100 g protein in replicate analysis.
If 13.0 g of MgSO4*7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain. Express your answer numerically in grams.
determine how many grams of oxygeno2 would be used when 10.82 litres nitric oxide nog is formed at the temperature of
If 4.00 mol of calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2), a gas used in welding, will be produced.
in a basic aqueous solution chloromethane undergoes a substitution reaction in which cl- is replaced by oh-ch3claqoh-aq
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