1. A solution of seawater contains 3.0 g salt in 97.0 g of water. What is the concentration of this solution expressed as percent salt by mass?
2. What is the concentration of a sugar-water solution that has 10.0 g of sugar in 40 g of water expressed as percent sugar by mass?
3. An acidic solution is made by dissolving 4.0 g of acetic acid in 35.0 g of water. What is the concentration of the solution expressed as percent acetic acid by mass?
4. A saturated solution of KNO3 at 80 degrees C has 160.0 g of KNO3 in 100.0 g of water. What is the concentration of this solution expressed as percent potassium nitrate by mass?
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Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give