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Mass of crucible plus cover (g)- 22.36g
Mass of crucible, cover and Sn (g)- 24.67g
Mass of crucible, cover and tin oxide (g)- 24.98g
a) Calculate the mass of Sn in the tin oxide.
b) Calculate the mass of O in the tin oxide.
c) Calculate the number of moles of Sn in the tin oxide.
d) Calculate the number of mo...
Sodium hydroxide, NaOH, is a strong base that is sometimes used as a cleaning agent since it can be used to dissolve proteins, grease, oils, and fats. Rank the following in increasing order of their molarity.
KCl has the same crystal structure as NaCl. Calculate the volume of the unit cell, given that ionic radii are K+ = 152 pm and Cl- = 167 pm. Compare the density of KCl. Which has the larger unit cell, NaCl or KCl?
determine the volume of a cube 10,62 cm, give an example of four sets of measurements that illustrate an imprecise and inaccurate data
If a 25.0 mL sample of sulfuric acid is titrated with 50.0 mL of 0.200 M potassium hydroxide to a phenolphthalein endpoint, what is the molarity of the acid? H2SO4(aq) + 2 KOH(aq) ? K2SO4(aq) + 2 H2O(l) Answer 0.300 M 0.200 M 0.150 M 0.400 M 0.100..
Is the noun phrase a dollar in the sentence John mowed his neighbour's lawn for a dollar an indirect object as well? If you think it is an indirect object, explain why. If you think it is not an indirect object, explain why not. If it is not an in..
predict whether a reaction will occur in each of the following. if so write the balanced chemical equation as well as the net ionic equation. Phases are all required for all species.
Give the balanced net ionic equations with states of matter indicated for the process taking place when the named aqueous solutions are mixed, and indicate the type of reaction if any by the following abbreviations
Titrate a 10.0 mL aliquot of the solution that you prepared with a 1.00 M NaOH to endpoint. The titration of the diluted unkown acid took 20 mL to reach enpoint. Calculate the concetration of the original unknown acid solution.
State balanced combustion reactions for the petrol and biodiesels shown above. a) Explain how much heat is released per kg of petrol. How much per kg of biodiesel
The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm. It has a face-centered cubic lattice. Find the atomic weight of this metal.?
question an acetylene tank for oxyacelylene welding will provide 9340 liters of acetylene gas c2h2 at stp. how many
a certain first-order reaction has a rate constant of 6.60times10-3 at 45 . how many minutes does it take for the
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