Calculate the magnitude of second force
Two forces F1 and F2 are acting on a mass M=6.0 kg. The force F1 = 5.0i + 7.0j + 2.0k, in N. The acceleration of the mass is given by a = 2.0i + 7.0j + 5.0k, in m/s2. Calculate the magnitude of F2.
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When .8436 mole of naphthalene(C10H8), a solid, is burned in a constant- volume bomb calorimeter at 298K, 5150 kJ of heat is evolved. Calculate delta H for the raction on a molar basis.
A box contains 18 computer disks, 5 of which are known to have bad sectors. In how many ways can 4 disks be selected, without replacement and without regard to order, so that the following conditions are satisfied? In how many disks can be selecte
Given the reaction X(aq) 3Y(aq) <===> 2Z(aq). Suppose the initial [X] is 0.55M and [Y] is 0.80 M. After equilibrium is reached, [X] = 0.35M. Calculate the Keq (Kc) for this reaction.
Tim and Elle visit a hospital where many people have the mumps. The probability that Tim gets the mumps is .13 and the probability that Elle gets the mumps is .07. What is the probability that Elle gets the mumps and Tim does not?
For the equilibrium Br2 (g) Cl2 (g) <===> 2BrCl (g) at 400 K, Kc = 7.0. 0.28 mol of Br2 and 0.28 mol of Cl2 are introduced into a 1.0-L container at 400 K. What will be the equilibrium concentration of Br2?
A sphere of copper is subjected to 81.1 MPa of pressure. The copper has a bulk modulus of 130 GPa. By what fraction does the volume of the sphere change? By what fraction does the radius of the sphere change?
A 0.4512 g sample of a primary-standard-grade Na2CO3 required 36.44 ml of a H2SO4 solution to reach the end point of the reaction. CO32- + 2H+ → H2O + CO2 What is the molarity of H2SO4?
A sphere of copper is subjected to 81.1 MPa of pressure. The copper has a bulk modulus of 130 GPa. By what fraction does the volume of the sphere change?
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