What are the mole fraction and the mass percent of csbr
What mass of cesium bromide must be added to .500 L of water (d =1.00g/mL) to produce a 0.687 m solution? What are the mole fraction and the mass percent of CsBr?
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The specific heat of copper metal is 0.385 J/g ·°C. How many joules of heat are necessary to raise the temperature of a 1.40 g block of copper from 31.4°C to 96.6°C?
A mixture containing equal number of moles of H2 and D2 is allowed to effuse down a capillary. What percent of the molecules effusing first would be D2
How many unpaired electrons would (Re(CN)6)-3 and (MnCl6)-4 have give electron configurations for each ion in terms of the t2g and eg sets.
If we wish to prepare a 0.50M solution of NaCl how much water must be added to 1.0 mole of NaCl?
The geometries of the molecules BF3 and NF3 are trigonal planar and trigonal pyramidal repectively. Which statement best accounts for the difference
A 0.5220 g sample of an unknown monoprotic acid was titrated with 9.98×10?2 M NaOH. The equivalence point of the titration occurs at 23.70 mL. Determine the molar mass of the unknown acid.
The mass of ethanol needed to fill the tube is found to be 11.40 . The density of ethanol is 0.789. Calculate the inner diameter of the tube in centimeters.
How much diesel fuel does it take to charge a mobile phone? One gallon of diesel fuel contains about 1.44E8 J of useful energy.
Poisons such as sodium azide and sodium cyanide inactivate hemoglobin by irreversibly binding to the heme group of the molecule. These poisons also inactivate the electron transport chain.
A beaker with 170 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 8.70 mL of a 0.370 M HCl solution to the beaker. How much will the p
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