An unknown gas effuses at 0.850 times the effusion rate of nitrogen dioxide, NO2. Estimate the the molar mass of the unknown gas

What is the molality of a solution made by dissolving 137.9g of sucrose in 414.1g of water?

What method is better for precisely identifying elements?

If ice is heated at constant pressure of 0.0512 ATM will it

Jin listed some common thermal insulators and conductors in a chart. A 2-column table with 2 rows. The first column labeled Insulators has entries rubber, air. The second column labeled Conductors has entries copper, X.

Write the scientific notation in numerals. 5.82 x 10 to the power of 2

14. Two or more substances that are together but do not combine to form a new, pure substance.

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume