A reading on Fahrenheit scale is $200°\mathrm{F}$. The same reading on celsius scale will be :
1. 40°C
2. 94°C
3. 93°C
4. 30°C

The molarity of a solution containing 5.85 g of NaCl(s) per 500 mL of solution is -

1. 4 mol L^–1

2. 20 mol L^–1

3. 0.2 mol L^–1

4. 2 mol L^–1

1. 1.5 M

2. 1.66 M

3. 0.017 M

4. 1.59 M

2. 46 g Na

3. 0.40 g Ca

4. 12 g He

If the concentration of glucose  (C₆H₁₂O₆)  in the blood is 0.9 g L^–1, then the molarity of glucose in the blood is: 
1. 5 M
2. 50 M
3. 0.005 M
4. 0.05 M

The molality of a solution containing 18.25 g of HCl gas in 500 g of water is -

1. $12.044\times {10}^{20}$ molecules

2. $6.022\times {10}^{23}$ molecules

3. $1\times {10}^{23}$ molecules

4. $12.044\times {10}^{23}$ molecules

The mass percent of carbon in carbon dioxide is: 

The empirical formula and molecular mass of a compound are ${\mathrm{CH}}_2\mathrm{O}$ and 180 g, respectively. The molecular formula of the compound is:
1. C₉H₁₈O₉
2. CH₂O
3. C₆H₁₂O₆
4. C₂H₄O₂

If the density of the solution is 3.12 g ml^-1, then what will be the mass of the 1.5 ml solution in two significant figures?