Explain the correct expression for the molarity

Reference no: EM13179983

1. To prepare a solution of NaCl (MW 58.443 (+-0.001), you weigh out 2.634 (+- 0.002) g and dissolve it in a 100-mL volumetric flask (+ -0.08 mL). What is the correct expression for the molarity of the solution? (Be sure to express your answer to the correct number of significant figures and also show the absolute uncertainty.)

2. In a titration, you use a digital titrator with very high accuracy and dispense 34.092 (+- 0.005) mL of a HCl solution that is 0.0104 (+- 0.0002) M. How many millimoles of HCl were added to the solution? (Be sure to express your answer to the correct number of significant figures and show the absolute uncertainty.)

Reference no: EM13179983

Questions Cloud

What is the probability of winning the new car : If the tickets are not replaced after each draw, what is the probability of winning the new car?

Explain the equilibrium constant kp is measured : The equilibrium constant Kp is measured (at an unspecified temperature) to be 0.66 for the reaction:

What is the rate of the current : A motorboat travels 356 miles in 4 hours going upstream and 357 miles in 3 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?

Discuss the changing role of management : Do you agree with the statement? Discuss the changing role of management accountants with reference to how it impacts on the current business environment.

Explain the correct expression for the molarity : What is the correct expression for the molarity of the solution? (Be sure to express your answer to the correct number of significant figures and also show the absolute uncertainty.)

What is scientific significance of galapagos archipelago : What is the scientific significance of the Galapagos Archipelago?

Briefly explain what is the molar mass of the gas : completely evacuated and then filled with an unknown gas to a pressure of 747 mmHg at 22 degree C. If the glass bulb gained 0.103 g in mass, what is the molar mass of the gas?

What is level of savings at equilibrium : Let us say that an economy has a consumption function given by C = 900 + 0.9Yd where Yd is the disposable income. There is a lump-sum tax of 90. Investment level is autonomous at 400 and government spending is also constant at 600.

Effects of military dictatorship on political culture : Compare the effects of military dictatorship on political culture in both Brazil and Nigeria. To what degree were the effects similar in these two countries? Was one of the two affected more adversely (unfavorably, harmful, negatively, badly) than th..

User Account

All Pages