If the Ka value for HF is 7.2 X 10“, then what is the correct pH of 0.30 M NaF solution?

PbSOa is precipitated on mixing the aqueous solution of Na2804 and Pb2(NO3)2. If 1.25 L of 00500 M Pb2(N03)2 and 2.00 L of 0.0250 M Na2504 are mixed. then what is the mass of PbSOa formed?

What output is obtained after the given expression is simplified?

Which two roots are produced after the simplif‌ication of the given quadratic equation? 3x2 -4x + 1

What is the density of H2O at 25° C?

In order to prepare 2.5 L of a 0.10 M HzSOd solution, what volume of 26 M sulphuric acid must be used?

New renewables include ________.

When a part of the body is injured, substances called ________ are released.

When 7.3 g of c3h8 burns in the presence of excess o2, __________ g of co2 is produced.

The names of all binary compounds, both ionic and molecular, end in the letters ____.

Temperature and silica content determine the _______ of magma.