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A student reported the follow ing percentages for his unknown mixture: 25%NH4Cl, 30% NaCl, and 50% SiO2. Assuming that the calculations were done correctly, explain the students error?
Gaseous indium dihydride is formed from the elements at elevated temperature: In(g)+H2(g) (reactions goes both ways=double arrow) to InH2(g) with Kp=1.48 at 973 K
Determine the gram-formula mass of the product of this reaction. Include proper units.
If 225.6 grams of calcium phosphate are produced in a precipitation reaction, how many moles of the salt have been formed
Determine whether a bond between each of the following pairs of atoms would be pure covalent, polar covalent, or ironic.
Which of the following could have a meso stereoisomer. a) 1,2-dichloropentane b) 1,3-dichloropentane c) 2,2-dichloropentane d) 2,4-dichloropentane
no decomposes to nitrogen and oxygen gases at high tempeature according to the following equilibrium2no lt-gt n2 o2all
a 1.30 m solution of citric acid h3c6h5o7 in water has a density of 1.10 gcm3. calculate the mass percent molality mole
An object has a mass of 50.0g. When it is dropped into a graduated cylinder containing 15mL of water, the water level in the cylinder rises to 32mL.
If you dissolved 0.95g of salt in 100ml distilled water, what is the concentration of salt in this solution in g/ml
with wet beriberi, peripheral vessels dilate and cardiac muscle looses its contractility. also, alpha-ketoglutarate is found in high concentrations. this is thought to be caused by
Calculate the final temperature of a mixture of 170.0 g of ice initially at -16.5 degrees celsius and 334.5 g of water initially
A 6.52 g sample of hydrocarbon compund containing only C and hydrogen produced 20.5 g of CO2. A 9.29 ml sample weighing 21.6 mg was collected over water at a pressure of 796 torr at 25 C
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