Formaldehyde is commonly found in the indoor air of improperly designed and constructed buildings. If the concentration of formaldehyde in a home is 0.7ppm x ​ and the inside volume is 800 m 3 , what mass (in grams) of formaldehyde vapor is inside the home? Assume T=298 K,P=1 atm. The molecular weight of formaldehyde is 30 .