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You need to prepare 180g of a 9% cream using a 30% stock cream and a 2% cream base. How much is needed of each? (round to the nearest whole number)
Determine the Celsius temperature of 2.49 mol of a gas contained in a 1.00-L vessel at a pressure of 143 kPa
The compound Mg(OH)2 is basic, but Si(OH)4 is an acid (silicic acid). Why? Select all that apply. 1. The OH groups attached to the silicon atom in Si(OH)4 strengthen the OH bond so that a hydrogen ion dissociates when the compound is dissolved in ..
a 50.0 ml solution of 1.2 m hcl at 24.1 deg celsius is mixed with 50.0 ml of 1.3 m naoh also at 24.1 degrees celsius in
calculate the number of moles of AgCrO4(Ksp=9.0x10^12) that will dissolve in 1.00L of 0.010 M K2CrO4 solution. what will be the ion concentrations at equilibrium?
1) A portion of 50.00 ml HCL solution requires 29.71 ml of 0.01963 M Ba(OH)2 to reach the end point. Determine the molarity for HCL. 2) Calculate the molar solubility of Ba(IO3)2 in a solution that us 0.02 M in Ba(NO3)2
What is their role in this reaction? In the case of this particular example that you watched, where would each of these ions have come from?
Suppose now that the electron is attracted to the proton. And they are separated by 10-14 m. Utilize coulomb's law to estimate the attractive energy. Based on results do consider the electron could be found within the nucleus. Explain
A gas st SATP occupies 1.629 L. What is the volume of the gas if the pressure is reduced to 79 kPa without changing the temperature?
Can you please help me this these question in a well developed paragraph. What is a mass spectrometer and how does it work?
Explain what is saturated sodium chloride, rather than pure water, utilized for this procedure and the subsequence washing of the organic layer
At a temperature of 60 ºC, about 0.8 g CO2 can be dissolved in 100 g water. what would be the mass of CO2 which can be dissolved in 100 g water at 10 ºC?
A tightly sealed 5.0 L flask contains argon at 69.0 deg. C and 781 mm Hg. The flask is heated until the pressure is doubled. What it the temperature of the gas.
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