Answer:
5 and 0.25
Step-by-step explanation:
5 I think thou ok but sure
<span>0.9% glucose solution means there are 0.9 g of glucose per 100 mL water.
</span><span> The concentration is required per litre for molar concentration:
0.9% glucose solution contains 9 g of glucose per 1000 mL or 1 L of water.
Molar mass of glucose is 180.16 g mol^-1 so 9 g = 9g/180.16 g mol^-1 = 0.05 moles
</span><span> 1 L of water contains 0.05 moles of glucose so molar concentration is 0.05 M or 0.05 mol/L </span>
Divide
7/12 = <span>.583
We get answer: </span><span>D. .583</span>
Answer:
1) 10^9
2) 10^0
3) 10^3
Step-by-step explanation:
1) You divide 10^12 and 10^7 = 10^5
10^4 × 10^5 = 10^9
2) You divide 10^3 and 10^3 = 10^0
10^0 × 10^4 = 10^0
3) You multiply 10^4 × 10^3 × 10^6 = 10^13. Then you divide 10^13 and 10^10 = 10^3
