In order to prepare 1.1x10 cubic kg / m3 brine, 1 liter brine has been prepared, and its weight is 1200g (1) Does this salt meet the requirements? (2) if not, should we add water or salt? How many kilos?

If not, add 0.12kg salt

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1. Can you measure 100g of alcohol without balance and only with measuring cylinder? Known Please
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4. In order to prepare 75% medical alcohol for disinfection, students need to use a measuring cylinder to measure 100g pure alcohol with a density of 0.8g/cm ^ 3 at a time. They should choose ↓ of the measuring cylinder The range and division values are () A.50ml;5ml B.100ml;2ml C.250ml;5ml D.400ml;10ml
5. "Haibao" is the mascot of the 2010 Shanghai World Expo. Its image is shown in the picture. Among all kinds of "Haibao" arranged on the streets of Shanghai, there is one "Haibao" The material is uniform and solid, the density is 1.5 × 10 3 kg / M 3, and the volume is 3 m 3. It is placed on the horizontal ground, and the contact area with the ground is 1 m 2. Take g = 10 N / kg, please ask: (1) what is the mass of this "Haibao"? (2) what is the pressure of this "Haibao" on the ground?
6. Haibao is the mascot of the 2010 Shanghai World Expo. As shown in the picture, it is a sculpture of Haibao on the street of Shanghai. If its mass is 5.4 × 10 ^ 3kg, the sculpture and the base are the same 2 m2. (g = 10 N / kg) (1) Seeking the gravity of sculpture; (2) Find the pressure of the sculpture on the base; (3) Please use your physics knowledge to explain the benefits of installing the base under the sculpture
7. "Haibao" is the mascot of the 2010 World Expo. Among all kinds of "Haibao" dotted on the streets of Shanghai, one "Haibao" has a volume of 2 cubic meters and a density of 1.5 times 10 kilograms per cubic meter. The quality of this "Haibao" is calculated
8. "Haibao" is the mascot of the 2010 Shanghai World Expo. Among the "Haibao" ornamented on the streets of Shanghai, there is a solid one with uniform quality The mass is 3.0 times 10 cubic kilogram, and G is 10N per kilogram. What is the pressure of this "Haibao" on the horizontal ground? (process)
9. "Haibao" is the mascot of the 2010 World Expo, and its image is shown in the picture. Among all kinds of "Haibao" dotted on the streets of Shanghai, there is a "Haibao" (uniform and solid) with a mass of 3.0 × 103kg, a density of 1.5 × 103kg / m3 and a contact area of 1m2 with the horizontal ground. Then "Haibao": ① the volume is______ The gravity is______ N. What is the pressure on the ground______ Pa．
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