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4. If you had 36.2 grams of aluminum metal reaction with 45.0 grams of copper (II) hydroxide,
which is the limiting and which is the excess reactant?
5. How many grams of copper metal would be produced?
6.How much of the excess reactant is left when the reaction stops?
3. Too make exactly 100. grams of ferric sulfate how many grams of sulfuric acid would be
needed?
4. If you had 36.2 grams of aluminum metal reaction with 45.0 grams of copper (II) hydroxide,
which is the limiting and which is the excess reactant?
1. If you had 6.50 moles of ferric hydroxide how many grams of ferric sulfate will be produced?
2. If 25.7 grams of water was produced what is the amount of sulfuric acid needed to produce the
water?
what are the reactions for
Mg+Pb(NO)3=Mg(NO3)2
C2H6=CO2 +H2O
The density of air at 20°C and 1.00 atm is 1.205 g/L. If this air were compressed at the
same temperature to equal the pressure at 40.0 m below sea level, what would be its
density? Assume the barometric pressure is constant at 1.00 atm. The density of seawater
is 1.025 g/cm3
.
A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690 g of water and no other products. A volume of 10.0 L (measured at S.T.P.) of this welding gas is found to weigh 11.6 g. Calculate (i) empirical formula, (ii) molar mass of the gas, and (iii) molecular formula.
The electrical conductivity of 0.1M of H2so4 solution is __ than the electrical conductivity of 0.1M of na2so4 solution
A neon gas at 1 atm has a volume of 12.0 L and a temperature of 44°C. Find the new volume of the gas after the temperature has been increased to 85°C.
You are supplied with 1150 kg ethanol (C2H5OH), together with methanol (CH3OH), potassium hydroxide (KOH) and ammonia (NH3). You are requested by a customer to produce methyl acetate (CH3COOCH3), potassium acetate (CH3COOK) and ammonium acetate (CH3COONH4) in mass forms.
(a) Calculate the mole & mass of acetic acid (CH3COOH) converted from ethanol through excessive oxidation.
(b) 50% acetic acid is mixed with methanol to produce methyl acetate. Calculate the minimum mass of methanol required and methyl acetate produced.
(c) 25% acetic acid is mixed with potassium hydroxide to produce potassium acetate. Calculate the minimum mass of potassium hydroxide required and potassium acetate produced.
(d) The remain acetic acid is mixed with ammonia to produce ammonium acetate. Calculate the minimum mass of ammonia required and ammonium acetate produced.
Gab wants to have a portable oxygen tank. A 5 liter oxygen gas exerts a pressure of 1 atm. How much pressure is needed for this gas to be compressed in a 2 liter cylinder provided there is no temperature change?
