Other Chemistry Answers

Calculate the millimoles of solute:
901 mL of a solution containing 5.49 ppm CaCO3

A sample of neon occupies a volume of 641 ml at STP. What will be the volume of the neon when the pressure is reduced to 93.3 kPa?

Balance the equation __H2(SO4)+__B(OH)3 __B2(SO4)3+__H2O

Calculate the pH of an avid solution containing0.05m HNO3

Given the equation 3H2 + N2 = 2NH3 find how much H2 should be used to produce 170g of NH3

8.10 kJ of heat energy is added to 15.0 g of ice at −25.0 °C. Describe the final state of the system and its temperature.
What state of matter is it? (solid, liquid, gas)
what is the final temperature (C)

If the mole fraction of glucose in water is 0.050 for a particular solution, what is the molality of this solution?

A] 5.6 m
B] None of the listed answers are correct
C] 0.50 m
D] 0.34 m
E] 2.9 m

How will the vapor pressure of a pure liquid change if enough solute is added to result in a mole fraction of 0.50?

A] The vapor pressure of the liquid will decrease a small amount.
B] The vapor pressure of the liquid will decrease by half.
C] The vapor pressure of the liquid will double.
D] None of the listed answers are correct
E] The vapor pressure of the liquid will increase a small amount.

how you would preparethe 50 ppm slution of Cu using salt of CuSo4

This is a question about analytical chemistry, in which concentration of [Fe(SCN)]2+ is determined by measuring the light absorbance after adding excess Fe 3+ ions into a sodium thiocyanate solution. However, I am so confused since the yellow color of the iron 3+ ions will affect the color intensity of the solution. Will it affect the measurement of the blood red colored [Fe(SCN)]2+ solution concentration?