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A 0.250 g quantity of an acid is titrated with 0.108 MNaOH. It takes 27.22 mL of NaOH to reach the endpoint. What is the equivalent weight of the acid?
what is the molar solubility of magnesium hydroxide? what is the solubility product, ksp, for magnesium hydroxide? Express the Ksp with the correct number of significant figures.
3CuSO4 + 2Fe --> 3 Cu + Fe2(SO4)3 If you place .092 mol of iron filling in a solution containing .158 mol of CuSO4, what is the limiting reactant? How many moles of Cu will be formed.
Intramolecular forces refer to the bonding forces within a molecule. Choose which forces are involved in the following change. those allowing fog to form on a cool, humid evening in Houston a. intramolecular b. intermolecular c. both d. neither
Hydrocarbons are often reacted with steam to form H2, as shown for propane: C3H8(g) + 6 H2O(g) 3 CO2(g) + 10 H2(g) Calculate Kp for this reaction at a particular temperature
write downnbsp a lewis structure for sbcl5 and also explain does the the octet rule is obeyed by this molecule ?explain
Find the molarity of the carbonate in the solution. A solution is prepared by dissolving 11.60g of a mixture of sodium carbonate and sodium bicarbonate in 1.00 L of water. A 300.0-cm^3 sample of the solution is then treated with excess HNO3 and boi..
For the reaction NH4CL(aq)=NH3(g)+HCL(aq),delta g=58.8 kJ and delta h=86.4 kJ. Is this reaction favored. If so, how. What would be the entropy change for the reaction of 2.04 moles of NH4CL(aq) at 349K and 1 atm
If the total mass of H2O produced is 23.4 grams, what was the approximate mass of the methane in the original mixture?
Need to dissolve CaCl2 in water to make a mixture that is 28.0% calcium chloride by mass. If the total mass of the mixture is 884.7 g,
Oxygen is prepared by heating potassium chlorate with manganese dioxide as a catalyst. 2KClO(*3*)(S)?2KCl(S)+30(*2*)(g) How many grams of oxygen would be obtained from 1.500g of potassium chlorate
compute the amount of heat needed to completely sublime 43.0 grams of solid dry ice at its sublimation temperature. the
what common laboratory test of viscoelasticity does this test most closely correspond? Estimate the average life of the same tubing in the same rupture test at 30 deg C and 37 deg C
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