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Calculate the volume of concentrated (18.0 mol/L) HNO3 needed to dilute to make 250 mL of 0.40 mol/L HNO3 solution
What mass of chromium (111) nitrate is contained in 250mL of a 0.450mol/L solution?
Given that k =[2 1]
[3 4]
Find the matrix k2+k+i,where i is the (2× 2) identify matrix
For adiabatic ideal gas near room temperature, what fraction of heat supplied is available for external work. If the gas is expanded at a constant pressure? At a constant temperature?
A 2-kg mass is held at rest at the top of an incline that make a 400 angle with the ground. The incline is 1.5 m long and the coefficient of kinetic friction µk = 0.2. When the mass is released, slides down the inclined with uniform acceleration.
Raw milk is stored at a dairy farm in a refrigerated cylindrical vat 6.50 feet wide and 12.5 feet high.Ifthevatcontains3.3×10²ft³ofmilk, how many kg
of milk does the vat contain, given that raw milk has a density of 1030
kg/m³
?
The unbalanced equation for the reaction of hydrochloric acid with magnesium hydroxide is shown. ___HCl + ___Mg(OH)2 → ___MgCl2 + ___H2O When the equation is balanced, what is the coefficient for H2O?
A helium gas is at pressure of 1atm and temperature of 0°C. If its pressure is dropped to its initial pressure, when its volume is kept constant. (a) calculate the work done by the gas. (b) what is the final temperature of the gas. (b) what is the work done by the if its volume becomes twice as initial volume and it return to its initial temperature.
The complete combustion of 1 mole of propane (C3H8) is represented by the reaction shown. C3H8 + 5O2 → 3CO2 + 4H2O How many grams of water are produced in this reaction?
NaHCO3(s) + CH3COOH(aq)→NaCH3COO(aq) + H2O(/) + CO2(g)
Is the equation of the overall reaction between the baking soda and vinegar balanced or not?
#339914 on Dec 2023